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Accession Results — 241 records retrieved
Results for search: Scientific name=Porella cordaeana; Source=All; Collector=Norris;
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Accession ID Determination Collector Collection Date Collection Number County / State Locality Elevation in meters Feedback
DHN100461  Porella cordaeana D. H. Norris 29 October 2000 100461 Madera / CA On moist, diffusely lit face of outcrop in mixed conifer forest along road 8S70 at Whiskey Creek (Whiskey Creek Campground. 1700 Comment
DHN100601  Porella cordaeana D. H. Norris 18 December 2000 100601 Contra Costa / CA On moist, diffusely lit bark of Quercus agrifolia in forest of Quercus agrifolia, Quercus douglasii and Pinus sabiniana with patches of chaparral along White Canyon at Red Road near end of Mitchell Canyon Road in Mount Diablo State Park south of Clayton. 250 Comment
DHN100971  Porella cordaeana D. H. Norris 22 February 2001 100971 San Luis Obispo / CA On fairly moist, diffusely lit bark of Umbellularia in open serpentine barrens on north shore of Chorro Reservoir northwest of San Luis Obispo in Camp San Luis Obispo Military Reservation. 200 Comment
DHN102521  Porella cordaeana D. H. Norris 2 June 2001 102521 Siskiyou / CA On fairly moist, diffusely lit outcrop in cutover mixed conifer forest and on adjacent wetlands along Forest Service Road 25 at junction with Forest Service Road 26. Shasta National Forest. 1900 Comment
DHN103038  Porella cordaeana D. H. Norris 10 November 2001 103038 Shasta / CA On seasonally moist, diffusely lit vertical face of outcrop in forest of Pseudotsuga, Calocedrus, Pinus ponderosa and Acer macrophyllum at Indian Springs in Castle Crags State Park. 1050 Comment
DHN103089  Porella cordaeana D. H. Norris 11 November 2001 103089 Siskiyou / CA On moist, diffusely lit rock outcrop on vertical streamcut in forest of Pseudotsuga and Quercus chrysolepis along Bear Creek Trail about 2 miles east of Elk River Road, Klamath National Forest. 1200 Comment
DHN10315  Porella cordaeana D. H. Norris 14 January 1969 10315 Humboldt / CA On twigs of Holodiscus in grassy meadow in forest of Thuja, Picea. Abies and Pseudotsuga on road to Petrolia about 4 miles south of Ferndale. 350 Comment
DHN103341  Porella cordaeana D. H. Norris 19 January 2002 103341 Amador / CA On moist, diffusely lit bark of Alnus in mixed conifer forest on contact zone between metamorphic and granitic rocks just above junction of East and West Panther Creek along Tiger Reservoir Road above Panther Creek Bridge and 10.7 miles east of Tiger Flat 1050 Comment
DHN103347  Porella cordaeana D. H. Norris 19 January 2002 103347 Amador / CA On moist, diffusely lit metamorphic rock outcrop in mixed conifer forest on contact zone between metamorphic and granitic rocks just above junction of East and West Panther Creek along Tiger Reservoir Road above Panther Creek Bridge and 10.7 miles east of 1050 Comment
DHN103386  Porella cordaeana D. H. Norris 20 January 2002 103386 Calaveras / CA On moist, diffusely lit boulder on river bank in riparian woodland with Alnus rhombifolia and scattered Quercus and conifers County Road between West Point and Railroad Flat at bridge crossing of South Fork of the Mokelumne River, Section 23, T6N, R13E. 700 Comment
DHN103838  Porella cordaeana D. H. Norris, Nancy Hillyard 10 May 2002 103838 Shasta / CA On moist, diffusely lit boulder in stream in wet and mature forest of Pseudotsuga, Calocedrus and Acer macrophyllum along Forest Service Road 39N07 along Soda Creek about 6 miles northeast of Highway 5 south of Dunsmuir. 950 Comment
DHN104255  Porella cordaeana D. H. Norris, Nancy Hillyard 5 July 2002 104255 Shasta / CA On moist, diffusely lit basaltic outcrop in forest of Pseudotsuga menziesii, Pinus ponderosa, Calocedrus decurrens, and Abies concolor on basaltic outcrop along Squaw Valley Creek, southwest of McCloud, Shasta Trinity National Forest. 750 Comment
DHN104463  Porella cordaeana D. H. Norris, Nancy Hillyard 18 September 2002 104463 Skamania / WA On moist, diffusely lit bark of Acer macrophyllum in second-growth forest of Thuja and Pseudotsuga along Sleeping Beauty Trail #37, Gifford Pinchot National Forest. 850 Comment
DHN104471  Porella cordaeana D. H. Norris, Nancy Hillyard 18 September 2002 104471 Skamania / WA On moist, diffusely lit vertical face of rhyolite cliff in second-growth forest of Thuja and Pseudotsuga along Sleeping Beauty Trail #37, Gifford Pinchot National Forest. 850 Comment
DHN104616  Porella cordaeana D. H. Norris 13 October 2002 104616 unknown / Golestan On moist, diffusely lit bark of Ostrya in heavily disturbed deciduous forest dominated by Parrotia along small stream at Nahar Khoran on south boundary of Gorgan. 450 Comment
DHN104638  Porella cordaeana D. H. Norris 14 October 2002 104638 unknown / Golestan On moist, diffusely lit rock outcrop in deciduous forest with Parrotia, Acer, Carpinus and Ulmus in deep river valley at Loveh Waterfall near west end of Golestan National Park. 550 Comment
DHN105149  Porella cordaeana D. H. Norris, Nancy Hillyard 8 December 2002 105149 Contra Costa / CA On moist, diffusely lit vertical face of rock outcrop on trailcut in open forest of Quercus agrifolia with scattered Eucalyptus globulus and with understory of Vaccinium in deep canyon in Huckleberry Regional Reserve. 350 Comment
DHN105172  Porella cordaeana D. H. Norris, Nancy Hillyard 8 December 2002 105172 Contra Costa / CA On moist, diffusely lit bark of Quercus agrifolia in open forest of Quercus agrifolia with scattered Eucalyptus globulus and with understory of Vaccinium in deep canyon in Huckleberry Regional Reserve. 350 Comment
DHN105217  Porella cordaeana D. H. Norris, Nancy Hillyard 14 February 2003 105217 Siskiyou / CA On moist, diffusely lit north-facing rock outcrop in forest of Quercus gambelii in deep canyon of Klamath River at Ash Creek Bridge, Klamath National Forest. 700 Comment
DHN105391  Porella cordaeana D. H. Norris, Nancy Hillyard 19 March 2003 105391 Shasta / CA On moist, diffusely lit boulder of river cliff in second-growth forest of Quercus chrysolepis, Pinus attenuata and Pseudotsuga menziesii along Mill Creek Road at Boulder Creek Trail, Whiskeytown National Recreation Area. 650 Comment
DHN106506  Porella cordaeana D. H. Norris, Nancy Hillyard 10 October 2003 106506 Siskiyou / CA On fairly moist, diffusely lit face of large outcrop in forest of Abies concolor along Forest Service Road 41N05 in narrow and deep canyon about 2.2 miles east of junction with Forest Service Road 13, Shasta-Trinity National Forest. 1500 Comment
DHN106555  Porella cordaeana D. H. Norris, Nancy Hillyard 10 November 2003 106555 Siskiyou / CA On moist, diffusely lit vertical face of boulder in forest of Pseudotsuga menziesii, Quercus kelloggii, and Calocedrus decurrens in moist canyon along McCloud River from headquarters of McCloud River Reserve of The Nature Conservancy to about one mile dow 600 Comment
DHN10674  Porella cordaeana D. H. Norris 6 April 1969 10674 Trinity / CA On moist, diffusely lit siliceous rock on roadbluff along Gunnison Crest Trail about 4 miles north of Junction City. 550 Comment
DHN10675  Porella cordaeana D. H. Norris 6 April 1969 10675 Trinity / CA On moist, diffusely lit siliceous rock on roadbluff along Gunnison Crest Trail about 4 miles north of Junction City. 550 Comment
DHN108045  Porella cordaeana D. H. Norris, Nancy Hillyard 17 June 2004 108045 Siskiyou / CA On moist, diffusely lit steep face of bergschrund in forest of Pinus concolor, Abies grandis, Tsuga mertensiana, Pinus monticola and Abies concolor with open scrubland over granitic outcrops along trail on northeast side of Kangaroo Lake, Klamath National 1800 Comment
DHN108112  Porella cordaeana D. H. Norris, Nancy Hillyard 1 July 2004 108112 Shasta / CA On very moist, diffusely lit rocks and gravel of vertical cliff of creek in forest of Pinus jeffreyi, Pseudotsuga menziesii, Calocedrus decurrens and Abies concolor at Forest Service Road 17 near trailhead to Heart Lake near west boundary of Mt. Lassen Na 1750 Comment
DHN108240  Porella cordaeana D. H. Norris, Nancy Hillyard 28 August 2004 108240 Contra Costa / CA On seasonally moist, diffusely lit bark of Quercus agrifolia in forest of Quercus agrifolia and Umbellularia along Bear Creek Trail on shores of Briones Reservoir. 200 Comment
DHN108494  Porella cordaeana D. H. Norris, Nancy Hillyard 8 February 2005 108494 Sonoma / CA On moist, diffusely lit boulder on west-facing hillside east of Spring Lake in forest of Quercus, Umbellularia and Pseudotsuga in Spring Lake Regional Park east of Santa Rosa. 100 Comment
DHN10855  Porella cordaeana D. H. Norris 20 April 1969 10855 Humboldt / CA On fairly dry but occasionally submerged siliceous boulder in Pseudotsuga forest on upper reaches of North Fork of Bear Creek, 750 Comment
DHN108592  Porella cordaeana D. H. Norris, Nancy Hillyard 14 March 2005 108592 Siskiyou / CA On moist, diffusely lit granite boulder in forest of Pseudotsuga, Calocedrus, Pinus lambertiana and Acer macrophyllum along upper reaches of Trapper Creek, Klamath National Forest east of Condrey Mountain 1400 Comment
DHN108593  Porella cordaeana D. H. Norris, Nancy Hillyard 14 March 2005 108593 Siskiyou / CA On moist, diffusely lit granite boulder in forest of Pseudotsuga, Calocedrus, Pinus lambertiana and Acer macrophyllum along upper reaches of Trapper Creek, Klamath National Forest east of Condrey Mountain 1400 Comment
DHN108831  Porella cordaeana D. H. Norris, N. M. Hillyard 26 March 2006 108831 Santa Barbara / CA On moist, diffusely lit sandstone boulder in area of sandstone with chaparral dominated by Quercus agrifolia and Arctostaphylos along West Camino Cielo Road west of San Marcos Pass, 800 Comment
DHN109399  Porella cordaeana D. H. Norris 5 September 2006 109399 Marion / OR On moist, diffusely lit bark of small Alnus in very rich mixed conifer forest along US Forest Service Road 2209 from trailhead for Opal Creek Ancient Forest Center to the Center, Willamette National Forest. 610-640 Comment
DHN109511  Porella cordaeana D. H. Norris 29 November 2006 109511 Contra Costa / CA On moist, diffusely lit bark of Quercus agrifolia in parkland with old plantations of Eucalyptus globulus and Pinus radiata with scattered patches of native vegetation including Umbellularia californica and Quercus agrifolia along Gorge Trail toward Lake 260 Comment
DHN109522  Porella cordaeana D. H. Norris, N. M. Hillyard 8 December 2006 109522 Contra Costa / CA On moist, diffusely lit bark of large Umbellularia in rather old growth forest of Quercus agrifolia, Umbellularia californica and Arbutus menziesii on north-facing steep ridge along Bear Creek Trail in headwaters of Briones Reservoir, Briones Regional Par 250 Comment
DHN109532  Porella cordaeana D. H. Norris, N. M. Hillyard 8 December 2006 109532 Contra Costa / CA On moist, diffusely lit bark of large Quercus agrifolia in rather old growth forest of Quercus agrifolia, Umbellularia californica and Arbutus menziesii on north-facing steep ridge along Bear Creek Trail in headwaters of Briones Reservoir, Briones Regiona 250 Comment
DHN109682  Porella cordaeana D. H. Norris 1 March 2007 109682 Contra Costa / CA On moist, diffusely lit base of scrub Quercus in scrub forest of Pinus attenuata, Castanopsis, Arctostaphylos and Quercus spp. over sedimentary fractured shale and soils with cobblestones, on East Bay Municipal Utilities District lands on Flicker Ridge ab 300 Comment
DHN12038  Porella cordaeana D. H. Norris March 1970 12038 Mendocino / CA On rocks in small falls along small stream in Sequoia sempervirens forest with Torreya californica understory about 6 miles east of Fort Bragg. Comment
DHN12039  Porella cordaeana D. H. Norris March 1970 12039 Mendocino / CA On rocks in small falls along small stream in Sequoia sempervirens forest with Torreya californica understory about 6 miles east of Fort Bragg. Comment
DHN12110  Porella cordaeana D. H. Norris April 1970 12110 Mendocino / CA On moist, diffusely lit rock in open Quercus forest on large outcropping rock about 5 miles northwest of Boonville on Highway 258 near Indian Creek Road. Comment
DHN12162  Porella cordaeana D. H. Norris 16 May 1970 12162 Humboldt / CA On moist, diffusely lit soil in outlet zone of lake in mixed conifer forest on shores of Blue Lake, northwest of Weitchpec. 550 Comment
DHN12382  Porella cordaeana D. H. Norris May 1970 12382 Siskiyou / CA On very moist to frequently submerged diffusely lit rocks along stream in Abies concolor forest with scattered grassy meadows at Haypress Meadows, Marble Mountains Wilderness Area. 1800 Comment
DHN12394  Porella cordaeana D. H. Norris May 1970 12394 Siskiyou / CA On fairly moist, diffusely lit boulder in Abies concolor forest with scattered grassy meadows at Haypress Meadows, Marble Mountains Wilderness Area. 1800 Comment
DHN19714  Porella cordaeana D. H. Norris October 1971 19714 Humboldt / CA On moist, diffusely lit boulder in open Pseudotsuga and Quercus forest along Quinby Creek about 3 miles north of Denny. 600-800 Comment
DHN19734  Porella cordaeana D. H. Norris October 1971 19734 Humboldt / CA On moist, diffusely lit boulder in open Pseudotsuga and Quercus forest along Quinby Creek about 3 miles north of Denny. 600-800 Comment
DHN21035  Porella cordaeana D. H. Norris 15 January 1972 21035 Trinity / CA On moist, diffusely lit bark of Acer near stream in Pseudotsuga, Quercus chrysolepis, and Arbutus forest along Corral Bottoms Road about 1.5 miles from Big Bar. Comment
DHN2128B  Porella cordaeana D. H. Norris July 1965 2128 unknown / British Columbia On dry, sunny log in cut-over Picea sitchensis forest along Bella Coola River near village of Bella Coola. Comment
DHN21718  Porella cordaeana D. H. Norris 25 February 1972 21718 Mendocino / CA On moist, rather shaded boulder near stream in open Quercus forest in deep canyon along Covelo Road about 3.1 miles NE of Longvale. 400 Comment
DHN22056  Porella cordaeana D. H. Norris 19 March 1972 22056 Trinity / CA On moist, diffusely lit boulder in Calocedrus, Pseudotsuga, and Quercus chrysolepis forest in canyon along small stream, Flume Gulch near Forest Glen, Six Rivers National Forest. 800 Comment
DHN22230  Porella cordaeana D. H. Norris 8 April 1972 22230 Humboldt / CA Moist, diffusely lit log near stream in mixed evergreen forest near Fish Lake above Weitchpec. 600 Comment
DHN22511  Porella cordaeana D. H. Norris 23 April 1972 22511 Modoc / CA On moist, shaded recess in outcrop in lava field with Arctostaphylos and Pinus ponderosa near Mayfield Ice Caves. 1170 Comment
DHN22554  Porella cordaeana D. H. Norris 16 May 1972 22554 Shasta / CA On moist, diffusely lit rocks along stream in deep ravine with many limestone outcrops in Quercus chrysolepis forest along Damnation Pass Road at Lunch Gulch. 600 Comment
DHN22564  Porella cordaeana D. H. Norris 16 May 1972 22564 Shasta / CA On moist, diffusely lit boulder in deep ravine with many limestone outcrops in Quercus chrysolepis forest along Damnation Pass Road at Lunch Gulch. 600 Comment
DHN22593  Porella cordaeana D. H. Norris, F. J. Hermann 17 May 1972 22593 Shasta / CA On fairly dry, sunny rocks protected from direct rainfall in Pseudotsuga and Quercus chrysolepis forest along Coffee Creek at East Fork of Coffee Creek. 1100 Comment
DHN22660  Porella cordaeana D. H. Norris 17 May 1972 22660 Siskiyou / CA On moist, diffusely lit boulder in Pseudotsuga forest in deep canyon along Etna Creek about 4 miles southwest of Etna on road to Sawyers Bar. 1200 Comment
DHN22668  Porella cordaeana D. H. Norris 17 May 1972 22668 Siskiyou / CA On moist, diffusely lit boulder in Pseudotsuga forest in deep canyon along Etna Creek about 4 miles southwest of Etna on road to Sawyers Bar. 1200 Comment
DHN22752  Porella cordaeana D. H. Norris, F. J. Hermann 18 May 1972 22752 Siskiyou / CA On moist, diffusely lit boulder in Pseudotsuga and Quercus chrysolepis forest along Etna to Sawyers Bar Road about 18 miles from Etna. 850 Comment
DHN22864  Porella cordaeana D. H. Norris 11 June 1972 22864 Siskiyou / CA On moist, diffusely lit boulder in Abies concolor and Pinus lambertiana forest along Duck Lakes Trail near Parrott's Mill Road, Klamath National Forest, 1650 Comment
DHN22942  Porella cordaeana D. H. Norris 18 May 1972 22942 Siskiyou / CA On moist, diffusely lit rock outcrop in Pseudotsuga and Quercus chrysolepis forest in steep canyon along Six Mile Creek near Callahan to Cecilville Highway. 600 Comment
DHN22959  Porella cordaeana D. H. Norris 18 May 1972 22959 Siskiyou / CA On moist, diffusely lit rock outcrop in Pseudotsuga and Quercus chrysolepis forest in steep canyon along Six Mile Creek near Callahan to Cecilville Highway. 600 Comment
DHN22994  Porella cordaeana D. H. Norris 26 June 1972 22994 Humboldt / CA On moist, diffusely lit bark of Acer macrophyllum in Pseudotsuga and Calocedrus forest along Grouse Mountain Road about 3 miles north of intersection with Horse Mountain Road, 1000 Comment
DHN23027  Porella cordaeana D. H. Norris 26 June 1972 23027 Humboldt / CA On moist, diffusely lit rock outcrop in Pseudotsuga forest along Grouse Mountain Road near Mud Lake about 5 miles south of intersection with Horse Mountain Road. 1550 Comment
DHN23161  Porella cordaeana D. H. Norris 8 August 1972 23161 Trinity / CA On moist to submerged, shaded rocks along river in open Abies magnifica forest with scattered grassy meadows in area of granitic outcrops near Browns Meadows. 1800-2000 Comment
DHN23229  Porella cordaeana D. H. Norris 20 August 1972 23229 Siskiyou / CA On moist, diffusely lit soil in seepage at top of ridge on open rocky ridge with scattered Picea breweri about 1 mile west of Elk Lick, 1900 Comment
DHN23290  Porella cordaeana D. H. Norris 13 October 1972 23290 Siskiyou / CA On fairly moist, sunny granitic boulder near stream in mixed conifer forest along Duck Lake Creek at Road 8, 1400 Comment
DHN23575  Porella cordaeana D. H. Norris 20 January 1973 23575 Trinity / CA On moist, diffusely lit boulder in Pseudotsuga forest in moist canyon along East Fork of the Trinity River at Barney Gulch. 550 Comment
DHN23820  Porella cordaeana D. H. Norris 16 March 1973 23820 Trinity / CA On moist, diffusely lit cliff overhang in Pseudotsuga forest in deep moist ravine along Highway 36 about 4 miles west of Forest Glen. 900 Comment
DHN23835  Porella cordaeana D. H. Norris 16 March 1973 23835 Trinity / CA On moist, diffusely lit cliff in Pseudotsuga forest in deep moist ravine along Highway 36 about 4 miles west of Forest Glen. 900 Comment
DHN23965  Porella cordaeana D. H. Norris 21 April 1973 23965 Trinity / CA On moist, diffusely lit boulder in open Quercus forest along New River between Denny and Mills Creek. 450 Comment
DHN24091  Porella cordaeana D. H. Norris 6 May 1973 24091 Humboldt / CA On moist, diffusely lit bark of Quercus in coastal scrub along Domingo Creek at Petrolia Road. Sect. 23, T1S, R3W. 0 Comment
DHN45669  Porella cordaeana D. H. Norris 1 September 1974 45669 Siskiyou / CA On moist, diffusely lit boulder on open talus slopes and on boggy lake margins around Bingham Lake, 2200 Comment
DHN45670  Porella cordaeana D. H. Norris 1 September 1974 45670 Siskiyou / CA On moist, diffusely lit boulder on open talus slopes and on boggy lake margins around Bingham Lake, 2200 Comment
DHN45786  Porella cordaeana D. H. Norris 2 November 1974 45786 Humboldt / CA On moist, diffusely lit boulder in Pseudotsuga, Abies grandis, and Calocedrus forest along Grouse Mtn. Rd. about 3 miles northeast of Horse Mountain Road. Comment
DHN45798  Porella cordaeana D. H. Norris 2 November 1974 45798 Humboldt / CA On moist, rather shaded rock without direct receipt of rainfall in Pseudotsuga, Abies grandis, and Calocedrus forest along Grouse Mtn. Rd. about 3 miles northeast of Horse Mountain Road. Comment
DHN46325  Porella cordaeana D. H. Norris, D. K. Smith 2 August 1975 46325 Siskiyou / CA On moist, intensely shaded rock in recess under granite boulder on open talus slopes and boggy lake margins near Paynes Lake, Klamath National Forest. 1800 Comment
DHN46453  Porella cordaeana D. H. Norris 28 August 1975 46453 Tulare / CA On moist, diffusely lit boulder in Sequoiadendron forest along Kaweah River (east fork) near Atwell Mills Campground west of Mineral King, Sequoia National Park. 1900 Comment
DHN47220  Porella cordaeana D. H. Norris 6 February 1976 47220 Mendocino / CA On moist to submerged, diffusely lit boulder in open Quercus forest along South Fork of the Eel River in Branscomb Reserve of the Nature Conservancy north of Branscomb, 350 Comment
DHN47534  Porella cordaeana D. H. Norris 19 March 1976 47534 Shasta / CA On moist, diffusely lit volcanic boulder in spray of falls in Pseudotsuga, Pinus ponderosa and Quercus forest in Burney Falls State Park north of Burney. 900 Comment
DHN47751  Porella cordaeana D. H. Norris 9 May 1976 47751 Humboldt / CA On moist, diffusely lit bark of Sambucus in Alnus, Pseudotsuga and Picea sitchensis forest on seaward bluffs at College Cove ca. 1/2 mile north of Trinidad. 0-50 Comment
DHN47816  Porella cordaeana D. H. Norris 23 October 1976 47816 Humboldt / CA On moist, rather sunny boulder on steep granitic outcrop above Tish-Tang-a-Tang Creek near Grogans Hole. 1600 Comment
DHN47965  Porella cordaeana D. H. Norris 28 November 1976 47965 Glenn / CA On moist, diffusely lit rock outcrop along creek in Abies concolor forest at Cottonwood Glade south of Mendocino Pass. 1600 Comment
DHN47971  Porella cordaeana D. H. Norris 28 November 1976 47971 Glenn / CA On fairly moist, rather shaded recess in outcrop on serpentine mountain top and adjacent scree slopes at Black Butte, Mendocino National Forest 2200 Comment
DHN47980  Porella cordaeana D. H. Norris 28 November 1976 47980 Glenn / CA On fairly moist, rather shaded recess in outcrop on serpentine mountain top and adjacent scree slopes at Black Butte, Mendocino National Forest 2200 Comment
DHN47995  Porella cordaeana D. H. Norris 28 November 1976 47995 Mendocino / CA On moist, diffusely lit boulder in Quercus chrysolepis and Pseudotsuga forest along West Branch of Jumpoff Creeek west of Surveyor Camp. 1200 Comment
DHN48172  Porella cordaeana D. H. Norris 16 December 1976 48172 Tehama / CA On moist, shaded recess in cliff in Quercus and Acer macrophyllum forest in very deep canyon of Battle Creek along Road 29N35 of Lassen National Forest about 4 miles east of Mineral, 1700 Comment
DHN48651  Porella cordaeana D. H. Norris 10 July 1977 48651 Siskiyou / CA On moist, diffusely lit rock outcrop sheltered from direct precipitation in Abies concolor forest in moist canyon below Forest Service Road 40S01 along Jaynes Creek to headwaters. Klamath National forest. 1550-1800 Comment
DHN48662  Porella cordaeana D. H. Norris 10 July 1977 48662 Siskiyou / CA On moist, diffusely lit boulder beside stream in Abies concolor forest in moist canyon below Forest Service Road 40S01 along Jaynes Creek to headwaters. Klamath National forest. 1550-1800 Comment
DHN50091  Porella cordaeana D. H. Norris, Robert Creek 19 September 1977 50091 Humboldt / CA On moist, diffusely lit granite outcrop protected from direct precipitation in very open forest of Calocedrus on barren granitic slopes on headwaters of Oregon Creek north of Trinity Summit Guard Station. Six Rivers National Forest. 1700-1850 Comment
DHN50108  Porella cordaeana D. H. Norris, Robert Creek 19 September 1977 50108 Humboldt / CA On moist, diffusely lit granite outcrop in very open forest of Calocedrus on barren granitic slopes on headwaters of Oregon Creek north of Trinity Summit Guard Station. Six Rivers National Forest. 1700-1850 Comment
DHN50148  Porella cordaeana D. H. Norris, Robert Creek 19 September 1977 50148 Humboldt / CA On moist to submerged, sunny granite rocks along stream in very open forest of Calocedrus on barren granitic slopes on headwaters of Oregon Creek north of Trinity Summit Guard Station. Six Rivers National Forest. 1700-1850 Comment
DHN50200  Porella cordaeana D. H. Norris 28 September 1977 50200 Siskiyou / CA On moist, diffusely lit base of Acer macrophyllum in deep, shaded ravine with Pseudotsuga about one mile west of White Mountain near Cook & Green Pass. 1700 Comment
DHN50245  Porella cordaeana D. H. Norris 28 September 1977 50245 Siskiyou / CA On moist, rather shaded rock outcrop in Picea breweri, Pinus monticola and Pseudotsuga menziesii forest on west-facing open ridge and adjacent ravine about one mile east of Copper Butte. 1800 Comment
DHN50267  Porella cordaeana D. H. Norris 28 September 1977 50267 Siskiyou / CA On moist, rather shaded rock outcrop in seepage in open Alnus, Calocedrus, and Abies concolor forest on south slopes of Red Butte near Cook & Green Pass. 1950 Comment
DHN50274  Porella cordaeana D. H. Norris 28 September 1977 50274 Siskiyou / CA On moist, diffusely lit boulder in open Alnus, Calocedrus, and Abies concolor forest on south slopes of Red Butte near Cook & Green Pass. 1950 Comment
DHN50294  Porella cordaeana D. H. Norris 5 October 1977 50294 Del Norte / CA On moist, shaded cliff in mixed conifer forest with open serpentine areas near Doctor Rock, 1400 Comment
DHN50905  Porella cordaeana D. H. Norris 30 December 1977 50905 Tulare / CA On moist, diffusely lit rock outcrop in Sequoiadendron forest at Belknap Grove. 1600 Comment
DHN52348  Porella cordaeana D. H. Norris, Alan Whittemore 14 October 1978 52348 Humboldt / CA On moist, rather shaded recess in outcrop along stream in mixed conifer forest in deep canyon at headwaters of South Fork of Tish Tang a Tang Creek east of Hoopa. 1000 Comment
DHN52373  Porella cordaeana D. H. Norris, Alan Whittemore 14 October 1978 52373 Humboldt / CA On moist to submerged, diffusely lit rocks in rivulet in mixed conifer forest in deep canyon at headwaters of South Fork of Tish Tang a Tang Creek east of Hoopa. 1000 Comment
DHN52375  Porella cordaeana D. H. Norris, Alan Whittemore 14 October 1978 52375 Humboldt / CA On moist, diffusely lit rocks along stream in mixed conifer forest in deep canyon at headwaters of South Fork of Tish Tang a Tang Creek east of Hoopa. 1000 Comment
DHN52393  Porella cordaeana D. H. Norris, Alan Whittemore 14 October 1978 52393 Humboldt / CA On moist, diffusely lit rock outcrop in mixed conifer forest in deep canyon at headwaters of South Fork of Tish Tang a Tang Creek east of Hoopa. 1000 Comment
DHN52959  Porella cordaeana D. H. Norris 24 May 1979 52959 Humboldt / CA On moist, diffusely lit boulder along stream in old second-growth forest of Lithocarpus and Pseudotsuga about one mile east of Ashfield Butte,, 550-750 Comment
DHN53003  Porella cordaeana D. H. Norris 13 June 1979 53003 Siskiyou / CA On moist, diffusely lit granite boulder in Ribes, Amelanchier, and Acer douglasii subalpine scrub above Terrace and Upper Cliff Lakes. 1800-1900 Comment
DHN53291  Porella cordaeana D. H. Norris 12 July 1979 53291 Humboldt / CA On moist, diffusely lit boulder in old-growth Pseudotsuga forest with Acer macrophyllum corridor on river along East Fork of Willow Creek about 1/2 mile south of East Fork Campground. 350 Comment
DHN53302  Porella cordaeana D. H. Norris 12 July 1979 53302 Humboldt / CA On moist, diffusely lit boulder in old-growth Pseudotsuga forest with Acer macrophyllum corridor on river along East Fork of Willow Creek about 1/2 mile south of East Fork Campground. 350 Comment
DHN55029  Porella cordaeana D. H. Norris 30 September 1979 55029 Tehama / CA On moist, rather shaded outcrop in very open alpine scrub on east-facing slopes of Anthony Peak. 1950-2100 Comment
DHN55038  Porella cordaeana D. H. Norris 30 September 1979 55038 Tehama / CA On moist, diffusely lit rock along stream in very open alpine scrub on east-facing slopes of Anthony Peak. 1950-2100 Comment
DHN56091  Porella cordaeana D. H. Norris 28 March 1980 56091 Trinity / CA On moist, diffusely lit outcrop in Pseudotsuga and Quercus forest along White Rock Road about 3.5 miles south of Highway 36, 1300 Comment
DHN56330  Porella cordaeana D. H. Norris 6 April 1980 56330 Humboldt / CA On moist, diffusely lit log in stream in very rich mixed conifer forest on shores of Blue Lake north of Weitchpec, 900 Comment
DHN56543  Porella cordaeana D. H. Norris 13 April 1980 56543 Trinity / CA On moist, diffusely lit rock outcrop in rich mixed conifer, Castanopsis and Lithocarpus forest along Hwy. 36 at Swift Creek. 950 Comment
DHN56611  Porella cordaeana D. H. Norris 13 April 1980 56611 Trinity / CA On moist, diffusely lit rock outcrop in Pseudotsuga and Quercus forest along Hwy. 36 at Olsen Creek. 1000 Comment
DHN56726  Porella cordaeana D. H. Norris 26 April 1980 56726 Humboldt / CA On moist, diffusely lit rock outcrop in rich mixed conifer forest on upper reaches of Marshall Creek. 1300-1400 Comment
DHN56850  Porella cordaeana D. H. Norris 1 July 1980 56850 Trinity / CA On moist, diffusely lit rock outcrop near stream in Abies concolor forest at Stuart Gap trailhead. 1650 Comment
DHN56882  Porella cordaeana D. H. Norris 1 July 1980 56882 Trinity / CA On moist, diffusely lit rock outcrop in Abies concolor forest at Stuart Gap trailhead. 1650 Comment
DHN56943  Porella cordaeana D. H. Norris 2 July 1980 56943 Tehama / CA On moist, diffusely lit outcrop in Abies concolor forest at headwaters of fork of Beegum Creek above intersection with USFS Road 35 about 1.5 miles west of Rat Trap Gap. Mendocino National Forest. 1700 Comment
DHN56961  Porella cordaeana D. H. Norris 2 July 1980 56961 Tehama / CA On moist, diffusely lit boulder in Abies concolor forest at headwaters of fork of Beegum Creek above intersection with USFS Road 35 about 1.5 miles west of Rat Trap Gap. Mendocino National Forest. 1700 Comment
DHN56966  Porella cordaeana D. H. Norris 2 July 1980 56966 Tehama / CA On moist, frequently submerged, diffusely lit boulder beside river in Abies concolor forest at headwaters of fork of Beegum Creek above intersection with USFS Road 35 about 1.5 miles west of Rat Trap Gap. Mendocino National Forest. 1700 Comment
DHN57028  Porella cordaeana D. H. Norris 3 July 1980 57028 Tehama / CA On moist, diffusely lit boulder in Abies concolor forest with scattered meadows in Beegum Basin and on north-facing slopes of North Yolla Bolly Mountain. 1900 Comment
DHN57041  Porella cordaeana D. H. Norris 3 July 1980 57041 Tehama / CA On very moist, diffusely lit rocks in rivulet in Abies concolor forest with scattered meadows in Beegum Basin and on north-facing slopes of North Yolla Bolly Mountain. 1900 Comment
DHN57376  Porella cordaeana D. H. Norris 25 July 1980 57376 Siskiyou / CA On moist, diffusely lit outcrop in open area of alpine scrub on cirque walls above Sugar Lake west of Callahan. 1900 Comment
DHN57561  Porella cordaeana D. H. Norris 28 July 1990 57561 Siskiyou / CA On moist, diffusely lit rocks along stream in Abies magnifica, A. concolor, Tsuga mertensiana and Pinus albicaulis forest near Echo Lake north of Red Butte, (about 5 air miles north of Seiad Valley, 1750 Comment
DHN57578  Porella cordaeana D. H. Norris 28 July 1990 57578 Siskiyou / CA On moist, diffusely lit rocks in recess in outcrop in Abies magnifica, A. concolor, Tsuga mertensiana and Pinus albicaulis forest near Echo Lake north of Red Butte, (about 5 air miles north of Seiad Valley, 1750 Comment
DHN57694  Porella cordaeana D. H. Norris 25 November 1980 57694 Del Norte / CA On moist, diffusely lit outcrop in open, mixed conifer forest on steep granitic slopes above Whisky Lake. 1600 Comment
DHN58213  Porella cordaeana D. H. Norris 17 February 1981 58213 Siskiyou / CA On moist, diffusely lit outcrop in Pseudotsuga forest on north-facing slopes above Scott River at Indian Scotty Campground. 1150 Comment
DHN58509  Porella cordaeana D. H. Norris 8 April 1981 58509 El Dorado / CA On moist, diffusely lit outcrop in very open conifer forest on large granitic outcrop near Twin Bridges Campground. 1800 Comment
DHN58541  Porella cordaeana D. H. Norris 8 April 1981 58541 El Dorado / CA On moist, diffusely lit outcrop in mixed conifer forest on steep north-facing slope above Silver Creek at Rat Castle Campground. 1500 Comment
DHN58587  Porella cordaeana D. H. Norris 9 April 1981 58587 El Dorado / CA On moist, diffusely lit outcrop in mixed conifer forest in deep canyon of Sly Park Creek. 1200 Comment
DHN67193  Porella cordaeana D. H. Norris 5 October 1981 67193 El Dorado / CA On moist, diffusely lit outcrop in Pinus ponderosa and Pseudotsuga forest along Sopiago Creek southeast of Placerville. 1100 Comment
DHN67582  Porella cordaeana D. H. Norris 17 January 1982 67582 Mendocino / CA On moist, diffusely lit boulder in riverine corridor with Umbellularia, Acer macrophyllum and Salix along Outlet creek about 2 miles south of Willits. 200 Comment
DHN67592  Porella cordaeana D. H. Norris 17 January 1982 67592 Mendocino / CA On moist, diffusely lit frequently submerged twigs in riverine corridor with Umbellularia, Acer macrophyllum and Salix along Outlet creek about 2 miles south of Willits. 200 Comment
DHN68365  Porella cordaeana D. H. Norris 10 April 1983 68365 Humboldt / CA On moist, diffusely lit base of Quercus in Acer macrophyllum and Pseudotsuga forest surrounded by prairie grassland along headwaters of Robbers Gulch west of Schoolhouse Peak (east of Orick, 750 Comment
DHN68681  Porella cordaeana D. H. Norris 23 April 1983 68681 Trinity / CA On moist, diffusely lit outcrop in very deep and steep-sided canyon with scattered Quercus and Pseudotsuga on serpentine outcrop along Ditch Gulch below Hwy. 3 about one mile north of Hwy. 36. 950 Comment
DHN68699  Porella cordaeana D. H. Norris 23 April 1983 68699 Trinity / CA On moist, diffusely lit seepage on roadbluff along Hwy. 36 at Granite Canyon about 2 miles west of Forest Glen. 750 Comment
DHN68827  Porella cordaeana D. H. Norris 14 May 1983 68827 Trinity / CA On moist, diffusely lit rock outcrop in mixed conifer forest along river along trail above Bridge Camp west of Clair Engle Lake. 800 Comment
DHN70511  Porella cordaeana D. H. Norris 23 April 1984 70511 Siskiyou / CA On moist, diffusely lit boulder in very rich mixed conifer forest in deep canyon along Jackson Creek at Callahan to Cecilville Road about 6 miles west of Callahan. 1500 Comment
DHN70543  Porella cordaeana D. H. Norris 23 April 1984 70543 Siskiyou / CA On moist, rather shaded boulder overhang in Pseudotsuga forest with Calocedrus and Taxus along Shadow Creek at Callahan to Cecilville Road about 6 miles northeast of Cecilville. 900 Comment
DHN70589  Porella cordaeana D. H. Norris 21 May 1984 70589 Humboldt / CA On very moist, sunny boulder in rich mixed conifer forest along US Forest Service Road 10N02 at head of Mill Creek. 1400 Comment
DHN70592  Porella cordaeana D. H. Norris 21 May 1984 70592 Humboldt / CA On moist, diffusely lit bark of Corylus in rich mixed conifer forest along US Forest Service Road 10N02 at head of Mill Creek. 1400 Comment
DHN70614  Porella cordaeana D. H. Norris 21 May 1984 70614 Humboldt / CA On moist, shaded ceiling of outcrop (no direct precipitation) in rich mixed conifer forest along US Forest Service Road 10N02 at head of Mill Creek. 1400 Comment
DHN70714  Porella cordaeana D. H. Norris 12 June 1984 70714 Trinity / CA On moist, diffusely lit limestone outcrop in rich Pseudotsuga forest along Swede Creek Road about one mile north of intersection with road to Ironside Mtn. Lookout. 1100 Comment
DHN70795  Porella cordaeana D. H. Norris 11 June 1984 70795 Del Norte / CA On moist, diffusely lit boulder in very rich mixed conifer forest along stream at exit of Sanger Lake along Forest Service Rd. 4803 southeast of O'Brien, Oregon. 1600 Comment
DHN70820  Porella cordaeana D. H. Norris 11 June 1984 70820 Del Norte / CA On moist, diffusely lit rock outcrop in very rich mixed conifer forest on slopes above Sanger Lake along Forest Service Rd. 4803 southeast of O'Brien, Oregon. 1700 Comment
DHN70865  Porella cordaeana D. H. Norris 11 June 1984 70865 Del Norte / CA On moist, shaded recess in cliff in very open scrub on face of sandstone massif along US Forest Service Rd. 4803 at Little Sanger Peak, Siskiyou Natl. Forest. 1900 Comment
DHN70929  Porella cordaeana D. H. Norris 12 June 1984 70929 Siskiyou / CA On moist, diffusely lit boulder ledge in rich forest of Abies concolor on steep slopes along US Forest Service Rd. 46N65 ca. 2 miles north of Lake Mtn. Lookout, Klamath Natl. Forest. 1700 Comment
DHN71674  Porella cordaeana D. H. Norris 15 September 1984 71674 Trinity / CA On moist, diffusely lit limestone boulder near stream in rich forest with Pseudotsuga and Quercus chrysolepis in deep canyon over limestone at Hall City Caves (east of Wildwood), Shasta-Trinity National Forest. 1200 Comment
DHN72907  Porella cordaeana D. H. Norris 14 February 1987 72907 Shasta / CA On moist, diffusely lit bark of Aesculus in forest of Quercus and Pinus sabiniana with Arctostaphylos understory on south shore of Shasta Lake at Highway 5 near Bridge Mountain Road, north of Redding. 350 Comment
DHN73474  Porella cordaeana D. H. Norris 30 January 1988 73474 Curry / OR On moist diffusely lit mineral soil in cutover forest of Pseudotsuga and Alnus along Elk River Road about 1 mile southeast of junction with Hwy. 101 near Port Orford. 100 Comment
DHN74602  Porella cordaeana D. H. Norris 4 June 1989 74602 Trinity / CA On moist, rather shaded face of outcrop in Pseudotsuga and Abies concolor forest along Blue Gulch on south side of Hwy. 36 about 1.5 miles east of intersection with Hwy 3. Sec 31, T30N, R12W. 1500 Comment
DHN74872  Porella cordaeana D. H. Norris 22 September 1989 74872 Siskiyou / CA On moist, diffusely lit base of granitic outcrop in mixed conifer forest along trail to Long Gulch, Klamath National Forest, southwest of Callahan. 600 Comment
DHN75804  Porella cordaeana D. H. Norris 31 October 1989 75804 Siskiyou / CA On moist, diffusely lit humic soil in primary-growth forest of Pseudotsuga and Calocedrus on steep slopes along Pacific Crest Trail at Cold Springs near Huckleberry Mountain (south of Happy Camp), 1500 Comment
DHN76349  Porella cordaeana D. H. Norris 2 May 1991 76349 Shasta / CA On moist, diffusely lit outcrop in spray of waterfall in forest of Quercus and Pinus ponderosa along Pit River at Potem Falls northwest of Round Mountain. 400 Comment
DHN76791  Porella cordaeana D. H. Norris 9 July 1991 76791 Humboldt / CA On moist, diffusely lit outcrop in forest of Calocedrus, Abies, and Pseudotsuga on serpentine outcrop along Friday Ridge Road at junction with Titlow Hill Road, Six Rivers National Forest. 1300 Comment
DHN76961  Porella cordaeana D. H. Norris 8 October 1991 76961 Placer / CA On moist, shaded recess at base of outcrop along stream at exit of Bowman Lake, Pinus ponderosa and Pseudotsuga forest on heavily glaciated granitic slopes, west of Truckee, 1750 Comment
DHN76988  Porella cordaeana D. H. Norris 8 October 1991 76988 Placer / CA On moist, shaded recess in outcrop along road to Bowman Lake at Grouse Mtn. Road, Pinus ponderosa and Pseudotsuga forest and corridor of Populus tremuloides along stream, west of Truckee, 1700 Comment
DHN77015  Porella cordaeana D. H. Norris 8 October 1991 77015 Placer / CA On moist, rather shaded boulder beside stream on north-facing slope with Acer macrophyllum, Calocedrus, and Alnus along road to Bowman Lake about 2 miles north of Hwy. 20. 1500 Comment
DHN77016  Porella cordaeana D. H. Norris 8 October 1991 77016 Placer / CA On moist, rather shaded boulder beside stream on north-facing slope with Acer macrophyllum, Calocedrus, and Alnus along road to Bowman Lake about 2 miles north of Hwy. 20. 1500 Comment
DHN7757  Porella cordaeana D. H. Norris 24 September 1967 7757 Del Norte / CA On moist, diffusely lit boulder in open forest on shore of Sanger Lake. 1550 Comment
DHN78502  Porella cordaeana D. H. Norris 18 June 1992 78502 Linn / OR On moist, diffusely lit lava outcrop in rich forest of Thuja, Tsuga and Pseudotsuga along trail to Iron Mountain Lookout from Highway 20. Willamette Natl. Forest. 1350 Comment
DHN80247  Porella cordaeana D. H. Norris 22 January 1993 80247 Polk / OR On moist, diffusely lit bark of Acer macrophyllum along stream in rich riparian forest with Alnus rubra, Acer macrophyllum, Populus trichocarpa, and Fraxinus latifolia Little Sink Natural Area of BLM along Teal Creek Road about 1.5 miles south of Falls Ci 150-200 Comment
DHN80388  Porella cordaeana D. H. Norris 6 February 1993 80388 Linn / OR On very moist, rather sunny dripping cliff at edge of recent clear-cut of Pseudotsuga forest on steep south-facing slopes along High Deck Road about 5 miles from Hwy. 20 at Cascadia. 900 Comment
DHN80462  Porella cordaeana D. H. Norris 6 February 1993 80462 Linn / OR On moist, diffusely lit bark of Acer macrophyllum in forest of large Alnus rubra at stream head at base of slope along High Deck Road about 5 miles from Hwy. 20 at Cascadia. 800 Comment
DHN80510  Porella cordaeana D. H. Norris 9 February 1993 80510 Marion / OR On moist, diffusely lit bark of Alnus in riverine corridor with Populus, Alnus, Fraxinus and Acer macrophyllum in South Santiam ''Area of Critical Environmental Concern'' of the Bureau of Land Management, about 3 miles east of Stayton. 180 Comment
DHN8092  Porella cordaeana D. H. Norris 29 October 1967 8092 Del Norte / CA On moist, diffusely lit boulder in Abies forest on Bear Basin Butte. 1550 Comment
DHN81222  Porella cordaeana D. H. Norris, J. Peck 10 May 1993 81222 Clackamas / OR On moist, diffusely lit boulder at waterline of river in very rich forest of Tsuga, Thuja, and Pseudotsuga along Oak Grove Fork of the Clackamas River near intersection with Shellrock Creek, Mt. Hood National Forest. 700 Comment
DHN81252  Porella cordaeana D. H. Norris, J. Peck 10 May 1993 81252 Clackamas / OR On moist, diffusely lit boulder in very rich boulder-strewn forest of Tsuga, Thuja, and Pseudotsuga along Oak Grove Fork of the Clackamas River near intersection with Skunk Creek, Mt. Hood National Forest. 650 Comment
DHN81751  Porella cordaeana D. H. Norris 27 July 1993 81751 Snohomish / WA On moist, diffusely lit ledge on andesite outcrop in heavily landslide-influenced mixed forest and on surrounding talus slopes on north-facing slopes above Perry Creek about 1-2 miles west of Perry Creek Campground on Mountain Loop Highway, Mt. Baker-Snoq 800 Comment
DHN81903  Porella cordaeana D. H. Norris 2 January 1994 81903 Madera / CA In moist, shaded recess in vertical cliff in forest with Pinus ponderosa and Quercus kelloggii with understory of Arctostaphylos and Chamaebatia along creek about 5 miles northeast of O'Neals along North Fork Road. 450 Comment
DHN81912  Porella cordaeana D. H. Norris 2 January 1994 81912 Madera / CA On moist, diffusely lit rock on eroded cliff in forest with Pinus ponderosa and Quercus kelloggii with understory of Arctostaphylos and Chamaebatia along creek about 5 miles northeast of O'Neals along North Fork Road. 450 Comment
DHN82036  Porella cordaeana D. H. Norris 19 January 1994 82036 Placer / CA On moist, shaded recess in large outcrop in rather dense forest of Quercus chrysolepis along small stream over serpentine outcrop about 2 miles below Drum Powerhouse, Comment
DHN82843  Porella cordaeana D. H. Norris 13 June 1994 82843 Amador / CA On very moist, diffusely lit steep west-facing granitic cliff in Pinus contorta and Tsuga mertensiana forest near intersection of Hidden Lake Trail with Horse Thief Spring Trail above Plasse resort on south end of Silver Lake, El Dorado National Forest, 2300 Comment
DHN82870  Porella cordaeana D. H. Norris 13 June 1994 82870 Amador / CA On moist, rather shaded recess in east-facing granitic cliff in Pinus contorta and Tsuga mertensiana forest near intersection of Hidden Lake Trail with Horse Thief Spring Trail above Plasse resort on south end of Silver Lake, El Dorado National Forest, 2300 Comment
DHN82875  Porella cordaeana D. H. Norris 13 June 1994 82875 Amador / CA On moist, rather shaded recess in east-facing granitic cliff in Pinus contorta and Tsuga mertensiana forest near intersection of Hidden Lake Trail with Horse Thief Spring Trail above Plasse resort on south end of Silver Lake, El Dorado National Forest, 2300 Comment
DHN82934  Porella cordaeana D. H. Norris 14 June 1994 82934 El Dorado / CA On moist, diffusely lit base of granite boulder in Pinus ponderosa, Abies concolor and Calocedrus decurrens forest at Silver Fork Campground along Silver Fork of the American River about 10 miles southeast of Kyburz on Mormon Emigrant Road, El Dorado Nati 1600 Comment
DHN83501  Porella cordaeana D. H. Norris 2 September 1994 83501 Douglas / OR On moist, diffusely lit basaltic outcrop in old-growth Pseudotsuga forest on basaltic knob along trail to Illahee Lookout, Umpqua National Forest, 1600 Comment
DHN83638  Porella cordaeana D. H. Norris 7 September 1994 83638 Pierce / WA On moist, diffusely lit bark of Chamaecyparis nootkanensis in mixed conifer forest on very steep slopes about 3 miles south of Summit Lake, Mt. Baker-Snoqualmie National Forest, 1000 Comment
DHN83893  Porella cordaeana D. H. Norris 23 September 1994 83893 Humboldt / CA On moist, diffusely lit rocks in stream in rich forest of Abies concolor, Pinus lambertiana, and Pseudotsuga forest along US Forest Service Road 5E21 at East Fork about 5 air miles north of Mad River, Six Rivers National Forest, 500 Comment
DHN84069  Porella cordaeana D. H. Norris 23 September 1994 84069 Humboldt / CA On fairly moist, diffusely lit outcrop in Abies magnifica, Pinus lambertiana, and Pseudotsuga forest along South Fork Mtn. Road near Doe Spring, about 7 air miles north of Mad River, Six Rivers National Forest, 1200 Comment
DHN84765  Porella cordaeana D. H. Norris 5 February 1995 84765 Shasta / CA On moist, diffusely lit outcrop in second-growth forest of Pseudotsuga, Pinus ponderosa, and Acer macrophyllum along Soda Creek Road about 3 miles NE of Hwy. 5 near Dunsmuir, 900 Comment
DHN84778  Porella cordaeana D. H. Norris 5 February 1995 84778 Shasta / CA On moist, diffusely lit boulder in second-growth forest of Pseudotsuga, Pinus ponderosa, and Acer macrophyllum along Soda Creek Road about 3 miles NE of Hwy. 5 near Dunsmuir, 900 Comment
DHN84928  Porella cordaeana D. H. Norris 6 February 1995 84928 Siskiyou / CA On moist, diffusely lit large boulder in stream in second-growth forest of Calocedrus, Pinus ponderosa, Pinus lambertiana, Taxus, Pseudotsuga and Abies concolor along McKinney Creek at junction with West Fork about 6 miles S of Hwy. 96 on McKinney Creek R 900 Comment
DHN84929  Porella cordaeana D. H. Norris 6 February 1995 84929 Siskiyou / CA On moist, diffusely lit large boulder in stream in second-growth forest of Calocedrus, Pinus ponderosa, Pinus lambertiana, Taxus, Pseudotsuga and Abies concolor along McKinney Creek at junction with West Fork about 6 miles S of Hwy. 96 on McKinney Creek R 900 Comment
DHN84930  Porella cordaeana D. H. Norris 6 February 1995 84930 Siskiyou / CA On moist, diffusely lit large boulder in stream in second-growth forest of Calocedrus, Pinus ponderosa, Pinus lambertiana, Taxus, Pseudotsuga and Abies concolor along McKinney Creek at junction with West Fork about 6 miles S of Hwy. 96 on McKinney Creek R 900 Comment
DHN84939  Porella cordaeana D. H. Norris 6 February 1995 84939 Siskiyou / CA On moist, diffusely lit outcrop in second-growth forest of Pseudotsuga on thinly bedded shale along Klamath River about 3 miles east of Horse Creek on Hwy. 96, Klamath National Forest. 600 Comment
DHN85285  Porella cordaeana D. H. Norris 25 April 1995 85285 Gem / ID On moist, shaded recess in steep cliff in Pinus ponderosa woodland along South Fork of Payette River at junction with North Fork near Banks, Boise National Forest. 1150 Comment
DHN85302  Porella cordaeana D. H. Norris 25 April 1995 85302 Gem / ID On moist, shaded recess in steep cliff along river in Pinus ponderosa woodland along South Fork of Payette River at bridge south of Garden Valley, Boise National Forest. 1250 Comment
DHN85394  Porella cordaeana D. H. Norris 25 May 1995 85394 Trinity / CA On moist, diffusely lit large boulder along stream in deep canyon with Pseudotsuga menziesii, Abies concolor, and Quercus chrysolepis along Rush Creek about 1 mile below Rush Creek Lakes, Salmon-Trinity Wilderness, Trinity National Forest. 1600 Comment
DHN8655  Porella cordaeana D. H. Norris 20 March 1968 8655 Humboldt / CA On moist, diffusely lit siliceous rock in open meadow at edge of Quercus forest near Showers Pass. 1300 Comment
DHN86873  Porella cordaeana D. H. Norris 31 December 1995 86873 Santa Cruz / CA On moist, rather shaded large boulder in canyon in older second growth Sequoia sempervirens forest along Zayante Canyon Road about 4 miles south of Summit Road, north of Felton. 160 Comment
DHN86952  Porella cordaeana D. H. Norris 6 February 1996 86952 Sonoma / CA On moist, diffusely lit outcrop in forest of Sequoia sempervirens, Pseudotsuga, Lithocarpus and Acer macrophyllum along Wolf Creek Road about 4 miles east of Gualala River , 500 Comment
DHN87191  Porella cordaeana D. H. Norris 10 March 1996 87191 Alameda / CA On fairly moist, diffusely lit sandstone outcrop in grassland on lower, south-facing slopes of Brushy Peak northeast of Livermore. 250-350 Comment
DHN88323  Porella cordaeana D. H. Norris 22 August 1996 88323 Shoshone / ID On moist, diffusely lit bark of Rhamnus in open forest of Pinus contorta, Pinus monticola, Populus fremontii and Pseudotsuga menziesii on steep slope above Big Creek at East Fork near Big Creek Campground, St. Joe National Forest. 750 Comment
DHN88458  Porella cordaeana D. H. Norris 24 September 1996 88458 Clallam / WA On moist, diffusely lit bark of Acer circinatum in forest of Abies lasiocarpa, Pseudotsuga menziesii, and Tsuga heterophylla on steep slopes above end of Forest Service Road 2820 about 1 mile northeast of peak of Mt. Townsend, Olympic National Forest. 1200-1500 Comment
DHN88469  Porella cordaeana D. H. Norris 24 September 1996 88469 Clallam / WA On moist, diffusely lit organic soil under Alnus in forest of Abies lasiocarpa, Pseudotsuga menziesii, and Tsuga heterophylla on steep slopes above end of Forest Service Road 2820 about 1 mile northeast of peak of Mt. Townsend, Olympic National Forest. 1200-1500 Comment
DHN88569  Porella cordaeana D. H. Norris 4 October 1996 88569 Kitsap / WA On moist, diffusely lit stem of Rubus spectabilis in badly disturbed forest of Thuja plicata, Alnus rubra and Acer macrophyllum along road about one mile west of Hansville. 50 Comment
DHN88639  Porella cordaeana D. H. Norris 6 October 1996 88639 Clallam / WA On moist, diffusely lit thin organic soil over outcrop in rather dense forest of Tsuga heterophylla and Pseudotsuga menziesii with Taxus understory along Deer Ridge Trail in Buckhorn Wilderness south of Sequim, Olympic National Forest. 1100 Comment
DHN88649  Porella cordaeana D. H. Norris 6 October 1996 88649 Clallam / WA On moist, diffusely lit face of cliff in rather dense forest of Tsuga heterophylla and Pseudotsuga menziesii with Taxus understory along Deer Ridge Trail in Buckhorn Wilderness south of Sequim, Olympic National Forest. 1100 Comment
DHN89038  Porella cordaeana D. H. Norris 24 March 1997 89038 Jefferson / WA On moist, diffusely lit log in old second-growth forest of Pseudotsuga, Thuja and Tsuga on slopes above Big Quilcene River along Lower Big Quilcene Trail WSW of Quilcene. 400 Comment
DHN89057  Porella cordaeana D. H. Norris 24 March 1997 89057 Jefferson / WA On moist, diffusely lit bark of Acer macrophyllum in old second-growth forest of Pseudotsuga, Thuja and Tsuga on slopes above Big Quilcene River along Lower Big Quilcene Trail WSW of Quilcene. 400 Comment
DHN89059  Porella cordaeana D. H. Norris 24 March 1997 89059 Jefferson / WA On moist, diffusely lit bark of Acer macrophyllum in old second-growth forest of Pseudotsuga, Thuja and Tsuga on slopes above Big Quilcene River along Lower Big Quilcene Trail WSW of Quilcene. 400 Comment
DHN89257  Porella cordaeana D. H. Norris 17 April 1997 89257 Kitsap / WA On moist, shaded base of Spiraea in bog dominated by Kalmia and surrounded by old second-growth forest of Pseudotsuga, Abies and Tsuga at Kitsap Forest Habitat Conservation Area above Stavis Creek southwest of Seabeck. 150 Comment
DHN89259  Porella cordaeana D. H. Norris 17 April 1997 89259 Kitsap / WA On moist, shaded base of Spiraea in bog dominated by Kalmia and surrounded by old second-growth forest of Pseudotsuga, Abies and Tsuga at Kitsap Forest Habitat Conservation Area above Stavis Creek southwest of Seabeck. 150 Comment
DHN89370  Porella cordaeana D. H. Norris 21 April 1997 89370 Jefferson / WA On moist, diffusely lit bark of Acer macrophyllum on steep slope in old second-growth forest of Pseudotsuga and Abies along road to top of Mt. Walker about 1 mile from Hwy. 101, southeast of Quilcene, Olympic National Forest. 250 Comment
DHN89407  Porella cordaeana D. H. Norris 21 April 1997 89407 Jefferson / WA On moist, rather shaded bark of Alnus along stream in old second-growth forest of Tsuga and Thuja along Road 2620 about 1 mile from Hwy. 101, southeast of Quilcene, Olympic National Forest. 250 Comment
DHN89511  Porella cordaeana D. H. Norris 16 May 1997 89511 unknown / WA On moist, diffusely lit boulder in fairly open second-growth Pseudotsuga and Tsuga forest on broken basaltic terrain along Putvin Trail (#813) about 1/2 mile above Forest Service Road 25 along Boulder Creek about 16 miles west of Hwy. 101, Olympic Nation 450 Comment
DHN89917  Porella cordaeana D. H. Norris 5 September 1997 89917 Kittitas / WA On moist, diffusely lit basalt outcrop in open forest of Abies concolor, Larix lyallii and Pseudotsuga along Trail 1359 on watershed of Stafford Creek NNE of Cle Elum, Wenatchee National Forest. 1600 Comment
DHN8992  Porella cordaeana D. H. Norris 9 June 1968 8992 Trinity / CA On moist, diffusely lit cliff on schistose outcrop on bank of small stream on ridge immediately west of Big Flat at upper watershed of Coffee Creek, 1750 Comment
DHN89948  Porella cordaeana D. H. Norris 5 September 1997 89948 Kittitas / WA On moist, diffusely lit basalt outcrop in open forest of Abies concolor, Larix lyallii and Pseudotsuga along Trail 1359 on watershed of Stafford Creek NNE of Cle Elum, Wenatchee National Forest. 1600 Comment
DHN90269  Porella cordaeana D. H. Norris 13 October 1997 90269 Clallam / WA On moist, diffusely lit bark of Sambucus in second-growth forest of Pseudotsuga menziesii, Abies grandis and Thuja plicata along seaward bluffs at Salt Creek County Park NE of Joyce, 10 Comment
DHN90275  Porella cordaeana D. H. Norris 13 October 1997 90275 Clallam / WA On moist, shaded bark of Sambucus in second-growth forest of Pseudotsuga menziesii, Abies grandis and Thuja plicata along seaward bluffs at Salt Creek County Park NE of Joyce, 10 Comment
DHN9072  Porella cordaeana D. H. Norris 28 July 1968 9072 Siskiyou / CA On boulder near waterline of river in Pseudotsuga forest along Salmon River about 1 mile south of Big Flat, 1500 Comment
DHN9073  Porella cordaeana D. H. Norris 28 July 1968 9073 Siskiyou / CA On boulder just above floodline of river in Pseudotsuga forest along Salmon River about 1 mile south of Big Flat, 1500 Comment
DHN92931  Porella cordaeana D. H. Norris 6 May 1998 92931 Clallam / WA On moist, diffusely lit bark of Acer macrophyllum in second-growth riverine corridor with Pseudotsuga menziesii, Acer macrophyllum and Alnus rubra along Little River Road about 1/2 mile from intersection with highway 101. 80 Comment
DHN9312  Porella cordaeana D. H. Norris 9 August 1968 9312 Trinity / CA On fairly dry, diffusely lit flat top of serpentine outcrop on bluff at junction of Coffee Creek and Union Creek. 1200 Comment
DHN9318  Porella cordaeana D. H. Norris 9 August 1968 9318 Trinity / CA On fairly dry, diffusely lit serpentine outcrop on bluff at junction of Coffee Creek and Union Creek. 1200 Comment
DHN9326  Porella cordaeana D. H. Norris 9 August 1968 9326 Trinity / CA On dry, sunny serpentine outcrop on bluff at junction of Coffee Creek and Union Creek. 1200 Comment
DHN9344  Porella cordaeana D. H. Norris 9 August 1968 9344 Trinity / CA On dry, sunny serpentine outcrop on river cliff at junction of Coffee Creek and Union Creek. 1200 Comment
DHN9383  Porella cordaeana D. H. Norris 9 August 1968 9383 Trinity / CA On moist, diffusely lit siliceous rock in recess on steep cliff above E. Weaver Lake, Shasta National Forest, 2200 Comment
DHN94117  Porella cordaeana D. H. Norris 2 August 1998 94117 Ferry / WA On moist, rather shaded boulder along stream in Pinus contorta - Larix occidentalis - Pseudotsuga forest in deep canyon of Tonata Creek along Road FR2148 about 2 miles south of Kettle River Road. 650 Comment
DHN94227  Porella cordaeana D. H. Norris 8 August 1998 94227 Clallam / WA On moist, diffusely lit ceiling of overhanging outcrop in Abies lasiocarpa and Tsuga mertensiana forest with open sedge meadows near small lake about 1 mile SSW of Mt. Dana, Olympic National Park. 1500-1600 Comment
DHN94528  Porella cordaeana D. H. Norris 13 March 1999 94528 Mason / WA On moist, diffusely lit thin organic soil on south-facing cliff in forest of Pseudotsuga, Tsuga and Thuja on trail to Mt. Rose from Lake Cushman, 500 Comment
DHN94707  Porella cordaeana D. H. Norris 9 May 1999 94707 Kittitas / WA On moist, diffusely basalt boulder in forest of Abies grandis, Pseudotsuga and Pinus ponderosa on steep slopes above Horsetail Falls along Middle Fork of Naches River about 1 mile north of junction with Hwy. 410. 850 Comment
DHN94738  Porella cordaeana D. H. Norris 15 May 1999 94738 Thurston / WA On moist, diffusely lit log in second growth forest of Pseudotsuga with Acer circinatum understory along Green Line Trail #6 from Mima Falls Campground, Capitol State Forest. 150 Comment
DHN94824  Porella cordaeana D. H. Norris 15 May 1999 94824 Thurston / WA On moist, diffusely lit bark of large Populus in riverine corridor of Populus, Rhamnus and Alnus along Sherman Creek at D-3000 Road at Rock Creek Campground west of Little Rock, Capitol State Forest. 180 Comment
DHN9520  Porella cordaeana D. H. Norris 2 September 1968 9520 Siskiyou / CA On moist, diffusely lit siliceous rock along stream in dense Pseudotsuga forest about 3 miles above Summerville on China Creek Trail, 1300 Comment
DHN95302  Porella cordaeana D. H. Norris 18 June 1999 95302 Mason / WA On moist, diffusely lit bark of Alnus rubra in old-growth forest of Tsuga heterophylla and Abies grandis at Spider Lake, Olympic National Forest. 400 Comment
DHN95304  Porella cordaeana D. H. Norris 18 June 1999 95304 Mason / WA On moist, diffusely lit bark of Alnus rubra in old-growth forest of Tsuga heterophylla and Abies grandis at Spider Lake, Olympic National Forest. 400 Comment
DHN95344  Porella cordaeana D. H. Norris 18 June 1999 95344 Mason / WA On moist, diffusely lit outcrop on river cliff in riverine corridor of Salix and Alnus at bridge over Road 23, Olympic National Forest. 300 Comment
DHN95513  Porella cordaeana D. H. Norris 21 June 1999 95513 Clallam / WA On moist, diffusely lit bark of Prunus at Sphagnum bog margin with adjacent stunted Tsuga heterophylla forest along Highway 101 about 2 miles south of Bogachiel State Park, Olympic National Forest. 50 Comment
DHN95820  Porella cordaeana D. H. Norris 27 June 1999 95820 Chelan / WA On moist, shaded steep face of outcrop on river slope in forest of Picea engelmannii, Tsuga mertensiana, and Abies lasiocarpa below Myrtle Lake at bridge, Wenatchee National Forest. 1100 Comment
DHN95886  Porella cordaeana D. H. Norris 28 June 1999 95886 Okanogan / WA On moist, diffusely lit rocks of steep rivercliff in forest of Larix occidentalis, Pseudotsuga menziesii and Abies lasiocarpa at Cedar Creek Falls, Wenatchee National Forest. 1300 Comment
DHN9790  Porella cordaeana D. H. Norris 19 October 1968 9790 Josephine / OR On moist, diffusely lit base of Acer macrophyllum in moist Abies concolor forest along Cave Creek in Oregon Caves National Monument. Comment
DHN9793  Porella cordaeana D. H. Norris 19 October 1968 9793 Josephine / OR On moist, diffusely lit limestone outcrop in moist Abies concolor forest along Cave Creek in Oregon Caves National Monument. Comment
SFV21213  Porella cordaeana D. H. Norris 14 Feb 1987 72907 Shasta / CA South shore of Shasta Lake at Highway 5 near Bridge Mountain Road, north of Redding. Comment
DHN24150  Porella cordaeana D. H. Norris 19 May 1973 24150 Siskiyou / CA On moist, diffusely lit boulder on steep cliff in Pseudotsuga forest along Bear Creek between its junction with Elk Creek and with Snowshoe Creek 750-1100 Comment
DHN24174  Porella cordaeana D. H. Norris 19 May 1973 24174 Siskiyou / CA On moist, diffusely lit boulder in Pseudotsuga forest along Bear Creek between its junction with Elk Creek and with Snowshoe Creek 750-1100 Comment
DHN47785  Porella cordaeana D. H. Norris 23 October 1976 47785 Humboldt / CA On fairly moist, rather sunny boulder in very open mixed conifer forest with Ceanothus understory on stabilized talus slope on Long Ridge about 3.8 miles north of Big Hill Road. 1200 Comment
DHN52318  Porella cordaeana D. H. Norris 15 September 1978 52318 Siskiyou / CA On moist, diffusely lit steep face of outcrop in mixed conifer forest along Granite Creek between Tickner Creek and Blue Granite Lake. 1100-1700 Comment
DHN52978  Porella cordaeana D. H. Norris 13 June 1979 52978 Siskiyou / CA On moist, diffusely lit granite boulder in Pinus jeffreyi-Calocedrus forest on granitic outcrop on trail from Cedar Lake to Cliff Lake. 1800 Comment
DHN56928  Porella cordaeana D. H. Norris 2 July 1980 56928 Tehama / CA On moist, diffusely lit limestone outcrop in Pinus ponderosa and Abies concolor forest with groves of open Quercus forest along Tomhead Gulch. 1250-1600 Comment
DHN57498  Porella cordaeana D. H. Norris 25 July 1980 57498 Siskiyou / CA On moist, diffusely lit rock outcrop on north-facing slopes with Abies magnifica and Tsuga mertensiana along trail to Long Gulch Lake and on cirque walls above lake southwest of Callahan. 2000-2100 Comment
DHN8032  Porella cordaeana D. H. Norris 15 October 1967 8032 Trinity / CA On boulder in open mixed conifer and Quercus forest along Canyon Creek between Ripstein Camp and McKay Camp. 700-1050 Comment
DHN81300  Porella cordaeana D. H. Norris 20 May 1993 81300 Clatsop / OR On moist, diffusely lit bark of Alnus in primary forest of Pseudotsuga, Tsuga, Picea sitchensis and Abies amabilis with open areas of basaltic outcrops on upper slopes of Saddle Mountain along trail from campground, Saddle Mtn. State Park, 800-1000 Comment
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