Search Results — 306 specimen records retrieved (296 records with coordinates)
Results for search: Scientific name=Quercus x macdonaldii;   More information: Jepson Online Interchange

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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  A343320  Quercus X macdonaldii G. B. Grant 1903-3-29 1882 Unknown Sierra Madre Mts, near Monrovia 304 Comment
  A343321  Quercus X macdonaldii I. W. Clokey 1931-4-24 5172 Unknown Prisoners Harbor, Santa Cruz Island Comment
  A343322  Quercus X macdonaldii I. W. Clokey 1931-4-29 5173 Unknown Ravine west of Pelican Bay, Santa Cruz Island Comment
  A343323  Quercus X macdonaldii I. W. Clokey 1931-4-24 5171 Unknown Prisoners Harbor, Santa Cruz Island Comment
  A343324  Quercus X macdonaldii Ralph Hoffmann 1930-6-15 Unknown Santa Cruz Island Comment
  A343325  Quercus X macdonaldii A. Eastwood 1917-7-16 6440 Unknown Santa Cruz Island Comment
Read comments
Mar 20 2018
  A343326  Quercus X macdonaldii C. E. Miller 1917-09-01 - 1917-10-01 Unknown Santa Cruz Island Comment
  A343327  Quercus X macdonaldii E. L. Greene 1886-07-01 - 1886-08-01 Unknown Island of Santa Cruz Comment
  A343328  Quercus X macdonaldii E. L. Greene 1886-07-01 - 1886-08-01 Unknown Island of Santa Cruz Comment
  A343329  Quercus X macdonaldii E. L. Greene 1886-07-01 - 1886-08-01 Unknown Island of Santa Cruz Comment
  A343330  Quercus X macdonaldii E. L. Greene 1886-07-01 - 1886-08-01 Unknown Island of Santa Cruz Comment
  A343331  Quercus X macdonaldii F. Franceschi 1894-1-1 Unknown Island of Santa Cruz Comment
  A343332  Quercus X macdonaldii F. Franceschi 1894-1-1 Unknown Island of Santa Cruz Comment
  A343333  Quercus X macdonaldii C. B. Wolf 1932-10-5 4230 Unknown Santa Catalina Island. So. side of Black Jack Peak. Below worker's dormitories Comment
  A343334  Quercus X macdonaldii A. Eastwood 1917-7-20 6519 Unknown Santa Catalina Island Comment
  A343341  Quercus X macdonaldii I. W. Clokey 1931-4-24 5171 Unknown Prisoners Harbor, Santa Cruz Island Comment
  A343342  Quercus X macdonaldii I. W. Clokey 1931-4-29 5173 Unknown Ravine west of Pelican Bay, Santa Cruz Island Comment
  A343343  Quercus X macdonaldii I. W. Clokey 1931-4-29 5173 Unknown Ravine west of Pelican Bay, Santa Cruz Island Comment
  A343344  Quercus X macdonaldii I. W. Clokey 1931-4-24 5171 Unknown Prisoners Harbor, Santa Cruz Island Comment
  A343345  Quercus X macdonaldii I. W. Clokey 1931-4-24 5172 Unknown Prisoners Harbor, Santa Cruz Island Comment
  A343346  Quercus X macdonaldii I. W. Clokey 1931-4-29 5173 Unknown Ravine west of Pelican Bay, Santa Cruz Island Comment
  A343347  Quercus X macdonaldii I. W. Clokey 1930-9-11 5327 Unknown 1635 Laurel St., South Pasadena Comment
  A343348  Quercus X macdonaldii A. Eastwood 1908-05-01 - 1908-06-01 Unknown Painted Cave Ranch Comment
  A343349  Quercus X macdonaldii B. Trask Unknown Sta. Catalina Isle. Comment
  A343350  Quercus X macdonaldii B. Trask Unknown Sta. Catalina Isle. Comment
  A343351  Quercus X macdonaldii B. Trask Unknown Bell Mt. Sta. Catalina Isle. Comment
  A343352  Quercus X macdonaldii B. Trask 1909-01-01 - 1909-02-01 1001 Unknown Sta. Catalina Isle. Comment
  A343353  Quercus X macdonaldii C. S. Sargent 1894-9-16 Unknown Santa Catalina Island Comment
  A343354  Quercus X macdonaldii C. S. Sargent 1894-9-16 Unknown Santa Catalina Island Comment
  A343355  Quercus X macdonaldii C. S. Sargent 1894-9-16 Unknown Santa Catalina Island Comment
  A343356  Quercus X macdonaldii C. S. Sargent 1894-9-16 Unknown Santa Catalina Island Comment
  A343357  Quercus X macdonaldii C. S. Sargent 1894-9-16 Unknown Santa Catalina Island Comment
  A343358  Quercus X macdonaldii C. S. Sargent 1894-9-16 Unknown Santa Catalina Island Comment
  A343359  Quercus X macdonaldii C. S. Sargent 1894-9-15 Unknown Santa Catalina Island Comment
  A343360  Quercus X macdonaldii B. Trask 1908-1-1 Unknown Sta Catalina Island Comment
  A343366  Quercus X macdonaldii 1894-05-01 - 1894-06-01 Unknown Sta Catalina Island Comment
  CAS-BOT-BC104372  Quercus X macdonaldii H. M. Pollard 1952-8-13 s.n. Santa Barbara Mountain Drive above Santa Barbara, near intersection of Fremont Road Comment
  CAS-BOT-BC104373  Quercus X macdonaldii H. M. Pollard 1953-8-13 s.n. Santa Barbara Mountain Drive near Fremont Road, above Santa Barbara Comment
  CAS-BOT-BC104374  Quercus X macdonaldii H. M. Pollard 1953-8-13 s.n. Santa Barbara Mountain Drive near Fremont Road, above Santa Barbara Comment
  CAS-BOT-BC104375  Quercus X macdonaldii H. M. Pollard 1952-11-24 s.n. Santa Barbara Mountain Drive W of (and near) Shiffield Reservoir, Santa Barbara Comment
  CAS-BOT-BC104376  Quercus X macdonaldii H. M. Pollard 1957-9-18 s.n. Santa Barbara Mountain Drive W of Sheffield Reservoir, Santa Barbara Comment
  CAS-BOT-BC104377  Quercus X macdonaldii H. M. Pollard 1957-10-16 s.n. Santa Barbara Mountain Drive, about 1 mile NE of Mission, Santa Barbara Comment
  CAS-BOT-BC104378  Quercus X macdonaldii James William Toumey 1894-9-14 s.n. Los Angeles Catalina Island Comment
  CAS-BOT-BC104379  Quercus X macdonaldii Robert F. Thorne; P. C. Everett 1964-2-6 33430 Los Angeles ca 800' (perhaps 1 mil. SW of Empire Landing), N Central part of Santa Catalina Island Comment
  CAS-BOT-BC104380  Quercus X macdonaldii Robert F. Thorne; P. C. Everett 1964-2-6 33430 Los Angeles ca 800' (perhaps 1 mil. SW of Empire Landing), N Central part of Santa Catalina Island Comment
  CAS-BOT-BC104381  Quercus X macdonaldii Robert F. Thorne; P. C. Everett 1964-2-7 33480 Los Angeles Middle Canyon, Santa Catalina Island 243 Comment
  CAS-BOT-BC104382  Quercus X macdonaldii P. C. Everett 1934-10-1 6208 Los Angeles Santa Catalina Island, Left (E.) Fork of Pebbly Beach Canyon 1/3 mi above Mexican Sttlement 121 Comment
  CAS-BOT-BC104383  Quercus X macdonaldii L. R. Abrams; I. L. Wiggins 1931-7-4 327 Los Angeles Channel Islands. White's Landing, Santa Catalina Island Comment
  CAS-BOT-BC104384  Quercus X macdonaldii Alice Eastwood 1917-7-20 6519 Los Angeles Santa Catalina Island Comment
  CAS-BOT-BC104385  Quercus X macdonaldii C. E. Miller 1919-1-1 s.n. Los Angeles Catalina Island Comment
  CAS-BOT-BC104386  Quercus X macdonaldii John Thomas Howell 1931-4-13 6348 Santa Barbara Canada [Canada] del Puerta Zuela, Santa Cruz Island Comment
  CAS-BOT-BC104387  Quercus X macdonaldii John Thomas Howell 1931-4-13 6349 Santa Barbara Valle del Medio, Santa Cruz Island Comment
  CAS-BOT-BC104388  Quercus X macdonaldii John Thomas Howell 1931-4-13 6350 Santa Barbara Valle del Medio, Santa Cruz Island Comment
  CAS-BOT-BC104389  Quercus X macdonaldii Chas. E. Miller 1917-9-1 s.n. Los Angeles Santa Cruz Island Comment
  CAS-BOT-BC104390  Quercus X macdonaldii Chas. E. Miller 1917-9-1 s.n. Santa Barbara Santa Cruz Island Comment
  CAS-BOT-BC104391  Quercus X macdonaldii Chas. E. Miller 1917-9-1 s.n. Los Angeles Santa Cruz Island Comment
  CAS-BOT-BC104392  Quercus X macdonaldii Ralph Hoffmann 1927-4-1 s.n. Santa Barbara Smugglers Cove, Santa Cruz Island Comment
  CAS-BOT-BC104393  Quercus X macdonaldii Ralph Hoffmann 1927-4-1 s.n. Santa Barbara Santa Cruz Island Comment
  CAS-BOT-BC104394  Quercus X macdonaldii Ralph Hoffmann 1930-6-13 s.n. Santa Barbara Valdez, Santa Cruz Island Comment
  CAS-BOT-BC104395  Quercus X macdonaldii M. Bourell; R. Patterson 1984-1-29 1982 Santa Barbara Along trail ca. 1.5 mi form Cochis Harbor, Santa Cruz Island Comment
  CAS-BOT-BC104396  Quercus X macdonaldii R. Bacigalupi 1936-8-1 2380 Santa Barbara Hillsides 1 1/2 miles above Fry's Harbor, Santa Cruz Island Comment
  CAS-BOT-BC104397  Quercus X macdonaldii L. R. Abrams; I. L. Wiggins 1930-4-26 69 Santa Barbara Vicinity of Pelican Bay, Santa Cruz Island Comment
  CAS-BOT-BC104398  Quercus X macdonaldii M. W. Williams 1939-7-3 94 Santa Barbara Canyon back of Coches Prietos, Santa Cruz Island Comment
  CAS-BOT-BC104399  Quercus X macdonaldii Ira W. Clokey 1931-4-29 5173 Santa Barbara Ravine W of Pelican Bay, Santa Cruz Island, Santa Barbara Islands 125 Comment
  CAS-BOT-BC104400  Quercus X macdonaldii Ira W. Clokey 1931-4-24 5172 Santa Barbara Prisioners Harbor, Santa Cruz Island, Santa Barbara Islands 30 Comment
  CAS-BOT-BC104401  Quercus X macdonaldii Ira W. Clokey 1931-4-24 5171 Santa Barbara Prisioners Harbor, slope above stream, Santa Cruz Island, Santa Barbara Islands 15 Comment
  CAS-BOT-BC104403  Quercus X macdonaldii Alice Eastwood 1917-6-16 s.n. Santa Barbara Santa Cruz Island Comment
  CAS-BOT-BC104404  Quercus X macdonaldii Peter Raven; Clifton F. Smith 1960-4-28 15278 Santa Barbara Channel Islands, Santa Cruz Island, valley W of Portazuela Grade Comment
  CAS-BOT-BC104405  Quercus X macdonaldii Peter Raven; Clifton F. Smith 1960-4-28 15279 Santa Barbara Channel Islands, Santa Cruz Island, valley W of Portazuela Grade Comment
  CAS-BOT-BC104406  Quercus X macdonaldii Peter Raven; Clifton F. Smith 1960-4-26 15203 Santa Barbara Channel Islands, Santa Cruz Island, Portazuela Grade Comment
  CAS-BOT-BC104407  Quercus X macdonaldii Peter Raven; Clifton F. Smith 1960-4-25 15156 Santa Barbara Channel Islands, Santa Cruz Island, above China Harbor 243 Comment
  CAS-BOT-BC104408  Quercus X macdonaldii Carl B. Wolf 1932-9-23 4157 Santa Barbara Santa Cruz Island, 3/4 mi W of Main Ranch 60 Comment
  CAS-BOT-BC250946  Quercus X macdonaldii P. S. Manos 1987-10-17 471 Santa Barbara Santa Cruz Island; Roadside down from Diablo Mt. 400 Comment
  CATA1764  Quercus X macdonaldii Benjamin E. Carter 2012-7-19 6893 Los Angeles Santa Catalina Island: Bulrush Canyon, about 1/4 mile below the lower reservoir 277 Comment
  CATA1782  Quercus X macdonaldii Benjamin E. Carter, John R. Clark 2012-8-9 6960 Los Angeles Santa Catalina Island: Upper Bulrush Canyon, just below Valley of the Moons 333 Comment
  CATA1785  Quercus X macdonaldii Benjamin E. Carter, John Clark 2012-8-9 6963 Los Angeles Santa Catalina Island: Bulrush Canyon, below Salta Verde turnoff 255 Comment
  CATA2929  Quercus X macdonaldii Amy Catalano 2015-5-23 005 Los Angeles Santa Catalina Island: About 130 yards east of junction of Sweet Water and Old Eagles Nest Road 196 Comment
  CDA16683  Quercus X macdonaldii G. F. Hrusa, B. Follansbee, Wm. Dougherty 2001-1-1 15754 Santa Barbara Santa Rosa Island; Rocky summits on E side of Water Canyon. 60 Comment
  CDA21149  Quercus X macdonaldii G. F. Hrusa 1989-1-1 5757 Santa Barbara Santa Cruz Island; W of Scorpion Ranch. 0 Comment
  GH343335  Quercus X macdonaldii R. F. Thorne & P. Everett 1964-2-6 33430 Unknown (perhaps 1 mi. SW of Empire Landing), N central part of Santa Catalina Island 243 Comment
  GH343336  Quercus X macdonaldii R. C. Bacigalupi 1936-8-1 2380 Unknown Hillsides 1 1/2 miles above Fry's Harbor, Santa Cruz Island Comment
  GH343337  Quercus X macdonaldii R. F. Thorne & P. Everett 1964-2-7 33480 Unknown Middle Canyon, Santa Catalina Island 243 Comment
  GH343338  Quercus X macdonaldii P. C. Everett 1960-9-27 24295 Unknown Santa Catalina Island, along road through Middle Ranch 182 Comment
  GH343339  Quercus X macdonaldii I. W. Clokey 1931-4-24 5172 Unknown Prisoners Harbor, Santa Cruz Island Comment
  GH343340  Quercus X macdonaldii I. W. Clokey 1931-4-24 5171 Unknown Prisoners Harbor, Santa Cruz Island Comment
  IRVC1177057  Quercus X macdonaldii H. M. Pollard 1954-9-18 Santa Barbara Mountain Drive west of Sheffield Reservoir. Comment
  JEPS2821 Image available Quercus X macdonaldii Edw. L. Greene Jul 1 1886-Aug 1 1886 Santa Barbara Island of Santa Cruz; ; Santa Cruz Island Comment
  JEPS37670  Quercus X macdonaldii Mrs. Blanche Trask 1909-3-27 Los Angeles Catalina Island Comment
  JEPS37671  Quercus X macdonaldii W. L. Jepson 1908-7-12 3058 Los Angeles Santa Catalina Island Comment
  JEPS40261  Quercus X macdonaldii Mrs. Blanche Trask 1834-4-23 Los Angeles Catalina Island Comment
  JEPS40263  Quercus X macdonaldii Mrs. Blanche Trask 1834-4-23 Los Angeles Catalina Island Comment
  JEPS46700  Quercus X macdonaldii Mrs. Blanche Trask Dec 1910 Los Angeles Avalon Santa Catalina Comment
  JEPS93102  Quercus X macdonaldii Steven A. Junak 1991-8-2 SC 2811 Santa Barbara Santa Cruz Island, N side, along old road on W side of first canyon W of China Pines 329 Comment
  JEPS99402  Quercus X macdonaldii D. H. Wilken 1996-7-10 15233 Santa Barbara Santa Cruz Island: Near mouth of canyon draining into Central Valley, 1.2 km wnw of Stanton Ranch. 90 Comment
  LA205343  Quercus X macdonaldii Ira W. Clokey; 1931-4-24 5171 Santa Barbara Santa Cruz Island, Prisoners Harbor 4 Comment
  LA205344  Quercus X macdonaldii Ira W. Clokey; 1931-4-24 5172 Del Norte Santa Cruz Island, Prisoner's Harbor 30.0 Comment
  LA205346  Quercus X macdonaldii S. Bullock; Jonathan Sauer 1972-6-3 5098 Santa Barbara Santa Cruz Island, Santa Cruz Island, by the landslip blocking main rift valley west of ranch headquarters Comment
  LA81887  Quercus X macdonaldii Robert F. Thorne; P. C. Everett 1964-2-6 33430 Los Angeles Santa Catalina Island, N central part of Santa Catalina Island, perhaps 1 mi SW of Empire Landing 243 Comment
  OBI62170  Quercus X macdonaldii Dieter H. Wilken 2002-5-5 s.n. Santa Barbara Near main fork of Scorpion Cyn, ca 2 km SW of mouth of Scorpion Cyn at Scorpion Harbor 60 Comment
  POM123937  Quercus X macdonaldii Marcus E. Jones 1924-4-13 s.n. Santa Barbara Santa Cruz Island. Comment
  POM155641  Quercus X macdonaldii M. B. Dunkle 1928-3-31 1802 Los Angeles Cottonwood Canyon, Santa Catalina Island. 122 Comment
  POM155742  Quercus X macdonaldii M. B. Dunkle 1927-10-7 2003 Los Angeles Canyon bottom, Middle Ranch Canyon. Alt 2003ft 611 Comment
  POM171400  Quercus X macdonaldii Ralph Hoffmann 1930-9-20 s.n. Santa Barbara Springy bank, 'water hole,' near China Harbor, Santa Cruz Island. Comment
  POM243780  Quercus X macdonaldii F. R. Fosberg 1931-5-5 s 4771 Los Angeles Santa Catalina Island, Bullrush Canyon 60 Comment
  POM244224  Quercus X macdonaldii F. R. Fosberg 1931-12-10 7152 Los Angeles Pebble [Pebbly] Beach Canyon left fork Santa Catalina Island. 40 Comment
  POM250139  Quercus X macdonaldii M. W. Williams 1939-7-8 41 Santa Barbara Santa Cruz Island. Canada del Puerto Comment
  RSA134253  Quercus X macdonaldii E. R. Blakley 1960-4-30 3344 Santa Barbara Santa Cruz Island. Beach bluffs at Albert Anchorage 15 Comment
  RSA135707  Quercus X macdonaldii Peter H. Raven, C. F. Smith 1960-4-25 15155 Santa Barbara Santa Cruz Island. Above China Harbor 244 Comment
  RSA135708  Quercus X macdonaldii Peter H. Raven, C. F. Smith 1960-4-28 15278 Santa Barbara Santa Cruz Island. Valley west of Portazuela Grade. Comment
  RSA135709  Quercus X macdonaldii Peter H. Raven, Clifton F. Smith 1960-4-26 15203 Santa Barbara Santa Cruz Island. Portazuela Grade. Comment
  RSA135778  Quercus X macdonaldii Peter H. Raven, C. F. Smith 1960-4-25 15156 Santa Barbara Santa Cruz Island. Above China Harbor 244 Comment
  RSA135798  Quercus X macdonaldii Peter H. Raven, C. F. Smith 1960-4-28 15279 Santa Barbara Santa Cruz Island. Valley west of Portazuela Grade. Comment
  RSA167800  Quercus X macdonaldii Robert F. Thorne, P. Everett 1964-2-6 33430 Los Angeles N Central part of Santa Catalina Island, 1 mi. SW of Empire Landing. 244 Comment
  RSA167844  Quercus X macdonaldii Robert F. Thorne, P. C. Everett 1964-2-7 33480 Los Angeles Middle Canyon, Santa Catalina Island 244 Comment
  RSA177663  Quercus X macdonaldii Robert F. Thorne, P. Everett 1965-5-10 34448 Los Angeles N side of Black Jack Mt. above Lyonothamnus grove, Santa Catalina Island. 488 Comment
  RSA177664  Quercus X macdonaldii Robert F. Thorne, P. Everett 1965-5-12 34639 Los Angeles Bullrush Canyon, Santa Catalina Island. 244 Comment
  RSA188264  Quercus X macdonaldii Robert F. Thorne 1966-4-28 36189 Los Angeles Santa Catalina Island: bottom of gully alongside small stream running S from Hay Press Reservoir. 396 Comment
  RSA190913  Quercus X macdonaldii Robert F. Thorne 1967-5-18 36863 Los Angeles Santa Catalina Island Middle Bulrush Canyon 244 Comment
  RSA19752  Quercus X macdonaldii I. W. Clokey 1931-4-29 5173 Santa Barbara Santa Cruz Island. West of Pelican Bay 125 Comment
  RSA19754  Quercus X macdonaldii I. W. Clokey 1931-4-24 5172 Santa Barbara Santa Cruz Island. Prisoners Harbor 30 Comment
  RSA2160  Quercus X macdonaldii Knopf, Johnson 1930-2-2 s.n. Los Angeles Pebble [Pebbly] Beach Canyon, Catalina Island. Comment
  RSA332393  Quercus X macdonaldii Robert F. Thorne 1984-5-6 58425 Santa Barbara Santa Cruz Island. Prisoner' s Harbor, area about the Waterfalls and adjacent Central Valley 229 Comment
  RSA389411  Quercus X macdonaldii T. S. Elias, Walter Wisura 1987-8-2 10575 Santa Barbara Santa Cruz Island: Christi Pines, between Centinela and Campo Raton. Comment
  RSA4538  Quercus X macdonaldii Carl B. Wolf, Hoffmann 1932-3-19 2751 Santa Barbara Santa Cruz Island. field 3/4 mile W of Main Ranch. 61 Comment
  RSA475265  Quercus X macdonaldii Mark Hoefs 1974-10-3 577 Los Angeles Upper part of Middle Canyon [Santa Catalina Island]. 299 Comment
  RSA477329  Quercus X macdonaldii F. R. Fosberg 1931-4-13 s 4589 Los Angeles L fork Pebble [Pebbly] Beach, Santa Catalina Island. 80 Comment
  RSA477330  Quercus X macdonaldii M. B. Dunkle 1929-3-17 2066 Los Angeles Black Jack, Santa Catalina Island. Comment
  RSA477331  Quercus X macdonaldii F. R. Fosberg 1932-3-23 7558 Santa Barbara Santa Cruz Island. Canyon below Main Ranch Comment
  RSA477332  Quercus X macdonaldii F. R. Fosberg 1932-3-23 7512 Santa Barbara Santa Cruz Island. Half way between Prisoner's Harbor and Main Ranch Comment
  RSA477333  Quercus X macdonaldii F. R. Fosberg 1932-3-23 7513 Santa Barbara Santa Cruz Island. Half way between Prisoner's Harbor and Main Ranch Comment
  RSA477335  Quercus X macdonaldii Ralph Hoffmann 1930-6-15 s.n. Santa Barbara Santa Cruz Island. Main Ranch Comment
  RSA517079  Quercus X macdonaldii Steven A. Junak, D. Young, Tina Ayers, R Scott 1989-3-27 SC- 1234 Santa Barbara Santa Cruz Island. Laguna Canyon along Laguna Canyon Road just S of beginning of grade to S Ridge Road 152 Comment
  RSA5366  Quercus X macdonaldii Carl B. Wolf 1932-9-23 4157 Santa Barbara Santa Cruz Island. 3/4 mile W of Main Ranch 61 Comment
  RSA591164  Quercus X macdonaldii Steven A. Junak 1991-8-2 SC- 2811 Santa Barbara Santa Cruz Island. N side of island, along old road on W side of first canyon W of China Pines 329 Comment
  RSA619472  Quercus X macdonaldii E. R. Blakley 1962-10-6 5472 Los Angeles Head of Bullrush Canyon, Santa Catalina Island. 358 Comment
  RSA619473  Quercus X macdonaldii E. R. Blakley 1962-10-5 5464 Los Angeles Middle Ranch Corral in Middle Ranch Canyon, Santa Catalina Island 198 Comment
  RSA6207  Quercus X macdonaldii Carl B. Wolf 1932-10-5 4230 Los Angeles Santa Catalina Island, Black Jack Peak, south side (below buildings used to house workers). 305 Comment
  RSA623532  Quercus X macdonaldii J. M. Tucker 1992-3-30 s.n. Los Angeles Santa Catlina Island, upper Middle Ranch Canyon below pump station, roughly 4.5 miles west of Avalon. alt 840ft 256 Comment
  RSA652304  Quercus X macdonaldii R. Carlston 1961-5-8 8 Los Angeles 4th of July Cove, Catalina Island. Comment
  RSA87179  Quercus X macdonaldii F. W. Peirson 1934-3-27 11073 Santa Barbara Santa Cruz Island. Along ridge west of canyon of Frye's Harbor. 457 Comment
  SBBG101491  Quercus X macdonaldii S. A. Junak 1991-8-2 SC 2811 Santa Barbara old rd on W side of first cyn W of China Pines 329 Comment
  SBBG108337  Quercus X macdonaldii D. H. Wilken 1996-7-10 15233 Santa Barbara near mouth of cyn draining into Central Valley, 1.2 km WNW of Stanton Ranch 90 Comment
  SBBG108338  Quercus X macdonaldii D. Wilken with K. Chess 1996-7-27 15238 Santa Barbara confluence of W and main branches of upper Arlington Cyn 140 Comment
  SBBG109201  Quercus X macdonaldii D. H. Wilken 1996-7-10 15233 Santa Barbara near mouth of cyn draining into Central Valley, 1.2 km WNW of Stanton Ranch Comment
  SBBG111422  Quercus X macdonaldii J. M. Tucker 1992-3-30 Los Angeles upper Middle Ranch Cyn below pump station, roughly 4.5 mi W of Avalon 256 Comment
  SBBG11287  Quercus X macdonaldii R. Hoffmann 1931-9-10 Santa Barbara above Frys Harbor Comment
  SBBG114068  Quercus X macdonaldii M. R. Benedict 1997-9-6 Santa Barbara terminus of Lagunitas Rd on summit overlooking Valdez Harbor Comment
  SBBG114069  Quercus X macdonaldii M. R. Benedict 1997-9-5 Santa Barbara rd to eastern pines, on main ridge above pines Comment
  SBBG115083  Quercus X macdonaldii D. H. Wilken 2002-5-5 Santa Barbara near main fork of Scorpion Cyn, ca. 2 km SW of mouth of Scorpion Cyn at Scorpion Harbor 60 Comment
  SBBG115096  Quercus X macdonaldii D. H. Wilken 2002-5-5 Santa Barbara near main fork of Scorpion Cyn, ca. 2 km SW of mouth of Scorpion Cyn at Scorpion Harbor 60 Comment
  SBBG121394  Quercus X macdonaldii K. Chess, K. Niessen 2006-4-28 SC 60 Santa Barbara ridge between Ladys and Trident cyns 485 Comment
  SBBG121395  Quercus X macdonaldii K. Chess, K. Niessen 2006-4-28 SC 61 Santa Barbara ridge between Ladys and Trident cyns 485 Comment
  SBBG121396  Quercus X macdonaldii K. Chess, K. Niessen 2006-4-28 SC 62 Santa Barbara ridge between Ladys and Trident cyns Comment
  SBBG121397  Quercus X macdonaldii K. Chess, K. Niessen 2006-4-28 SC 63 Santa Barbara upper Trident Cyn, NNW of Diablo Comment
  SBBG121399  Quercus X macdonaldii K. Chess, K. Niessen 2006-4-29 SC 66 Santa Barbara ridge between Centinela and Lagunitas Secas 495 Comment
  SBBG128174  Quercus X macdonaldii B. E. Carter, J. Clark 2012-8-9 6963 Los Angeles Bulrush Cyn, below Salta Verde turnoff 255 Comment
  SBBG131771  Quercus X macdonaldii S. A. Junak 1999-5-21 SCa 986 Los Angeles W side of Coffee Pot Cyn, just upstream from rd crossing 411 Comment
  SBBG133340  Quercus X macdonaldii C. F. Smith 1960-4-28 6119 Santa Barbara rd in valley W of Portezuelo Grade, at base of N slope Comment
  SBBG133341  Quercus X macdonaldii C. F. Smith 1949-12-16 2503 Santa Barbara near crk in Arlington Cyn, below indian caves Comment
  SBBG133342  Quercus X macdonaldii C. F. Smith 1961-6-6 6437 Santa Barbara N slope above China Harbor, ca. 3/4 of the way to ridge (at entrance to pine's rd) Comment
  SBBG133346  Quercus X macdonaldii C. F. Smith 1959-5-28 5971 Santa Barbara ridge above Valdez Harbor 457 Comment
  SBBG13542  Quercus X macdonaldii E. R. Blakley 1962-10-5 5465 Los Angeles Middle Ranch Cyn between the mouth of Cape Cyn and its head Comment
  SBBG13564  Quercus X macdonaldii E. R. Blakley 1961-9-23 4717 Los Angeles SE side of Catalina Harbor 15 Comment
  SBBG24016  Quercus X macdonaldii C. H. Muller 1951-6-8 8960 Santa Barbara above Ladys Harbor Comment
  SBBG28333  Quercus X macdonaldii M. R. Benedict 1967-8-28 Santa Barbara 0.5 mi NW of Lagunitas Secas, ca. 1 mi S of Cueva Valdez 457 Comment
  SBBG28336  Quercus X macdonaldii M. R. Benedict 1967-8-28 Santa Barbara 1/8 mi N of Lagunitas Secas, ca. 2 mi SW of Ladys Harbor 457 Comment
  SBBG28340  Quercus X macdonaldii M. R. Benedict 1967-8-28 Santa Barbara 1/8 mi N of Lagunitas Secas, ca. 2 mi SW of Ladys Harbor 457 Comment
  SBBG28377  Quercus X macdonaldii M. R. Benedict 1967-10-5 Santa Barbara W fork of northern tributary to Griffith Cyn, ca. 0.6 mi NE of Centinela, S of Picacho Diablo Comment
  SBBG30336  Quercus X macdonaldii R. N. Philbrick with J. K. McPherson 1968-5-7 B 68 -266 Santa Barbara High Mount 365 Comment
  SBBG30386  Quercus X macdonaldii R. N. Philbrick with R. E. Broder, M. R. Benedict 1964-6-16 B 64 -28 Santa Barbara Canada Islay, S side of Central Valley, ca. 1 mi W of Stanton Ranch 36 Comment
  SBBG31078  Quercus X macdonaldii R. F. Thorne 1966-4-28 36189 Los Angeles small stream running S of Hay Press Reservoir 396 Comment
  SBBG31162  Quercus X macdonaldii M. R. Benedict 1968-4-7 Santa Barbara near bottom of Portezuela grade Comment
  SBBG31297  Quercus X macdonaldii R. F. Thorne 1966-9-15 Los Angeles Cape Cyn near small reservoir 320 Comment
  SBBG32068  Quercus X macdonaldii M. R. Benedict 1968-1-21 Santa Barbara ca. 0.5 mi W of Pk 1941, (Pk W of Red Mtn and S of headland between Platts and Twin Harbors) Comment
  SBBG32147  Quercus X macdonaldii R. N. Philbrick with R. F. Thorne 1967-5-18 B 67 -209 Los Angeles upper-middle Bullrush Cyn, Salta Verde Comment
  SBBG32150  Quercus X macdonaldii R. N. Philbrick with R. F. Thorne 1967-5-18 B 67 -220 Los Angeles lower-middle Bullrush Cyn, Salta Verde Comment
  SBBG36416  Quercus X macdonaldii R. N. Philbrick with J. R. Haller 1966-3-3 B 66 -87 Santa Barbara upper west branch, Dry Cyn 137 Comment
  SBBG36902  Quercus X macdonaldii R. Hoffmann 1931-9-9 Santa Barbara above Frys Harbor Comment
  SBBG37192  Quercus X macdonaldii E. R. Blakley, E. K. Balls 1958-10-11 2513 Santa Barbara S of Cyn del Medio 3.5 mi W of Stanton Ranch headquarters Comment
  SBBG37195  Quercus X macdonaldii E. R. Blakley 1960-4-30 3344 Santa Barbara beach bluffs at Albert's Anchorage 15 Comment
  SBBG41527  Quercus X macdonaldii M. R. Benedict 1971-3-25 Santa Barbara lower Aguaje Cyn, down stream from East Aguaje Spring, N of Middle Anchorage 60 Comment
  SBBG41529  Quercus X macdonaldii M. R. Benedict 1967-5-13 Santa Barbara Lagunitas Secas, ca. 6 mi WNW of Stanton Ranch and 1.5 mi SSE of Cueva Valdez Comment
  SBBG43776  Quercus X macdonaldii M. R. Benedict 1967-5-3 Santa Barbara end of rd, just NW of Lagunitas Secas depression, ca. 2 mi W of Picacho Diablo Comment
  SBBG43786  Quercus X macdonaldii M. R. Benedict 1967-5-4 Santa Barbara above bluff immediately S of pier at Prisoners Harbor Comment
  SBBG43787  Quercus X macdonaldii M. R. Benedict 1967-5-4 Santa Barbara above bluff at Prisoners Harbor Comment
  SBBG46017  Quercus X macdonaldii M. R. Benedict 1969-10-4 Santa Barbara near "Oak Gate" 100 yds S of Navy Rd, 0.25 mi W of Mt Pleasant Comment
  SBBG46022  Quercus X macdonaldii M. R. Benedict 1969-10-4 Santa Barbara north side rd, 1 mi W of Navy compound Comment
  SBBG46023  Quercus X macdonaldii M. R. Benedict 1969-10-4 Santa Barbara ca. 0.25 mi NW of "Pila tomentella" (water trough) jct of main ridge rd and rd down to E pines Comment
  SBBG46024  Quercus X macdonaldii M. R. Benedict 1969-10-4 Santa Barbara ca. 0.25 mi NW of "Pila tomentella" (water trough) jct of main ridge rd and rd down to E pines Comment
  SBBG46025  Quercus X macdonaldii M. R. Benedict 1969-10-4 Santa Barbara ca. 0.25 mi NW of "Pila tomentella" (water trough) jct of main ridge rd and rd down to E pines Comment
  SBBG46026  Quercus X macdonaldii M. R. Benedict 1969-10-4 Santa Barbara near "Oak Gate" 100 yds S of Navy Rd, 0.25 mi W of Mt Pleasant Comment
  SBBG46027  Quercus X macdonaldii M. R. Benedict 1969-12-6 Santa Barbara top of Pk 1848, W of Lagunitas, E of Alta 2 Comment
  SBBG46029  Quercus X macdonaldii M. R. Benedict 1969-12-6 Santa Barbara top of Pk 1740, first Pk E of Pk 1848, E of Alta 2 Comment
  SBBG46057  Quercus X macdonaldii M. R. Benedict 1969-10-4 Santa Barbara N side of rd, 0.25 mi W of Navy compound Comment
  SBBG46625  Quercus X macdonaldii M. R. Benedict 1969-9-13 Santa Barbara Indian mound in the Alameda, upper Coches Prietos Cyn Comment
  SBBG46627  Quercus X macdonaldii M. R. Benedict 1969-9-12 Santa Barbara E of rd and stream, near roadcuts, middle part of lower Willows Cyn Comment
  SBBG46633  Quercus X macdonaldii M. R. Benedict 1969-9-7 Santa Barbara ca. 0.75 mi W of Lagunitas Saddle Comment
  SBBG47430  Quercus X macdonaldii M. R. Benedict 1970-9-23 Santa Barbara above Big Orizaba Cove, near Twin Harbors 228 Comment
  SBBG52679  Quercus X macdonaldii L. Laughlin 1977-10-11 Santa Barbara W end of Portezuela, Central Valley Comment
  SBBG53228  Quercus X macdonaldii R. N. Philbrick with S. A. Junak 1977-11-25 B 77 -45 Santa Barbara Laguna Cyn S of La Questa [Cuesta] 426 Comment
  SBBG77394  Quercus X macdonaldii R. Hoffmann 1931-9-9 Santa Barbara near Buena Vista Comment
  SBBG77412  Quercus X macdonaldii R. Hoffmann 1931-9-9 Santa Barbara near Buena Vista Comment
  SBBG77414  Quercus X macdonaldii L. G. Yates -Aug-1893 Santa Barbara Santa Cruz Island Comment
  SBBG77415  Quercus X macdonaldii R. Hoffmann 1925-3-28 Santa Barbara Santa Cruz Island Comment
  SBBG77416  Quercus X macdonaldii R. Hoffmann 1927-5-14 Santa Barbara Santa Cruz Island Comment
  SBBG77417  Quercus X macdonaldii R. Hoffmann 1928-3-10 Santa Barbara Scorpion Ranch Comment
  SBBG77418  Quercus X macdonaldii R. Hoffmann 1930-11-8 Santa Barbara above Valdez Comment
  SBBG77419  Quercus X macdonaldii R. Hoffmann 1931-9-9 Santa Barbara Buena Vista Comment
  SBBG77420  Quercus X macdonaldii R. Hoffmann 1931-9-10 Santa Barbara above Frys Harbor Comment
  SBBG77421  Quercus X macdonaldii F. Caire 1931-10-6 Santa Barbara 3 mi E of main ranch Comment
  SBBG77423  Quercus X macdonaldii R. Hoffmann 1925-3-28 Santa Barbara Santa Cruz Island Comment
  SBBG77424  Quercus X macdonaldii R. Hoffmann 1929-3-23 Santa Barbara Coches Prietos Comment
  SBBG77425  Quercus X macdonaldii R. Hoffmann 1930-7-7 Santa Barbara Ladys Harbor Comment
  SBBG77426  Quercus X macdonaldii R. Hoffmann 1930-9-21 Santa Barbara cyn between Valley Anchorage and main ranch Comment
  SBBG77427  Quercus X macdonaldii R. Hoffmann 1930-12-7 Santa Barbara above Dick's Harbor (Dix Harbor) Comment
  SBBG77428  Quercus X macdonaldii R. Hoffmann 1930-12-7 Santa Barbara above Dick's Harbor (Dix Harbor) Comment
  SBBG77429  Quercus X macdonaldii F. R. Fosberg 1931-4-13 54589 Los Angeles Pebbly Beach Cyn, above stream 80 Comment
  SBBG77430  Quercus X macdonaldii F. R. Fosberg 1931-12-10 7152 Los Angeles Pebbly Beach Cyn 40 Comment
  SBBG77431  Quercus X macdonaldii Guy Fleming 1928-4-23 Santa Barbara Santa Rosa Island Comment
  SBBG77432  Quercus X macdonaldii R. Hoffmann 1929-3-23 Santa Barbara N of Coches Prietos Comment
  SBBG77433  Quercus X macdonaldii R. Hoffmann 1930-6-15 Santa Barbara Valdez Cyn Comment
  SBBG77434  Quercus X macdonaldii R. Hoffmann 1930-7-7 Santa Barbara Santa Rosa Island Comment
  SBBG77435  Quercus X macdonaldii R. Hoffmann 1930-9-20 Santa Barbara above China Harbor (Chinese Harbor) Comment
  SBBG77437  Quercus X macdonaldii R. Hoffmann 1932-5-9 Santa Barbara Tranquillon Cyn below Standard Oil Company Water Hole Comment
  SBBG77438  Quercus X macdonaldii R. Hoffmann 1932-5-23 Santa Barbara Orizaba Cyn, 0.5 mi from mouth Comment
  SBBG83870  Quercus X macdonaldii M. Daily 1978-5-22 416 Santa Barbara Cascada Cyn Comment
  SBBG90410  Quercus X macdonaldii M. C. Hochberg, S. A. Junak, P. Schuyler, E. Hobbs 1979-11-13 447 Santa Barbara pine forest above China Harbor (Chinese Harbor) 262 Comment
  SBBG90539  Quercus X macdonaldii M. R. Benedict 1969-9-28 Santa Barbara overlooking E side of wash ca. 100 yds S of dam Canada Cascada Comment
  SBBG9067  Quercus X macdonaldii P. H. Raven, C. F. Smith 1960-4-28 15279 Santa Barbara valley W of Portezuela grade Comment
  SBBG90854  Quercus X macdonaldii S. A. Junak 1982-5-8 SC 547 Santa Barbara E end of Lagunitas Secas area 487 Comment
  SBBG90855  Quercus X macdonaldii S. A. Junak 1982-5-8 SC 546 Santa Barbara E end of Lagunitas Secas area 487 Comment
  SBBG90957  Quercus X macdonaldii S. A. Junak with D. Young, T. Ayers, R. Scott 1989-3-27 SC 1234 Santa Barbara Laguna Cyn, along Laguna Cyn Rd, 1.5 mi S of intersection with South Ridge Rd 152 Comment
  SBBG95269  Quercus X macdonaldii M. B. Dunkle 1928-10-9 2003 Los Angeles Middle Ranch Cyn Comment
  SBBG95271  Quercus X macdonaldii M. B. Dunkle 1928-3-31 1802 Los Angeles Cottonwood Cyn Comment
  SBBG95458  Quercus X macdonaldii M. B. Dunkle 1928-10-14 20117 Los Angeles Renton Mine Comment
  SD128070  Quercus X macdonaldii Steven A. Junak, D. Young, T. Ayers, R. Scott 1989-3-27 SC 1234 Santa Barbara Santa Cruz Island, Laguna Canyon, along Laguna Canyon Road, just south of the beginning of grade to South Ridge Road, canyon bottom, on east-facing slope above floodplain 152 Comment
  SD138598  Quercus X macdonaldii Steven A. Junak 1991-8-2 SC 2811 Santa Barbara Santa Cruz Island, north side of the island, along old Road on west side of first canyon west of China Pines, NE-facing slope 328 Comment
  SD69370  Quercus X macdonaldii Robert F. Thorne, P. Everett 1965-5-12 34639 Los Angeles Santa Catalina Island, Bulrush Canyon, wet margins of small stream 244 Comment
  SDSU6982  Quercus X macdonaldii R. M. Beauchamp 1966-8-8 52 Los Angeles Growing along firebreak south of Avalon. 213 Comment
  SDSU6983  Quercus X macdonaldii R. M. Beauchamp 1966-8-8 47 Los Angeles On bank overlooking road south of Avalon. Santa Catalina Island. 122 Comment
  SDSU6984  Quercus X macdonaldii R. M. Beauchamp 1966-8-8 47 Los Angeles On bank overlooking road south of Avalon. Santa Catalina Island. 122 Comment
  SEINET2066808 Image available Quercus X macdonaldii Michael R. Benedict 1969-10-3 Santa Barbara Santa Cruz Island, ridge SE of eucalyptus grove 'Rincon Papal', Canada del Puerto Comment
  SFV17794  Quercus X macdonaldii J. M. Tucker 1992-3-30 s. n. Los Angeles California Channel Islands Santa Catalina Island. Upper Middle Ranch Canyon below pump station, roughly 4.5 miles west of Avalon. 256 Comment
  UC1076079  Quercus X macdonaldii Herbert L. Mason 1927-9-24 4091 Santa Barbara near West Ranch; Santa Cruz Island Comment
  UC1084197  Quercus X macdonaldii M. W. Williams 1939-7-12 46 Santa Barbara e side Canada del Puerto (0.5 mi from beach); Santa Cruz Island Comment
  UC1188267  Quercus X macdonaldii P. C. Everett 1960-9-27 24295 Los Angeles along road through Middle Ranch Santa Catalina Island 182 Comment
  UC119120  Quercus X macdonaldii T. S. Brandegee Apr 1888 Santa Barbara Santa Cruz Island Comment
  UC1281384  Quercus X macdonaldii H. E. McMinn 1932-4-2 2812 Santa Barbara Santa Cruz Island Comment
  UC1281421  Quercus X macdonaldii H. E. McMinn 1932-4-22 2844 Santa Barbara Pelican Bay Santa Cruz Island Comment
  UC1286588  Quercus X macdonaldii F. A. Pitelka 1948-9-12 350 Santa Barbara Prisoners Harbor Santa Cruz Island 15 Comment
  UC128897  Quercus X macdonaldii H. M. Hall 1908-6-15 8276 Los Angeles Hay Press Spring Santa Catalina Island Comment
  UC1302318  Quercus X macdonaldii Robert F. Thorne and P. C. Everett 1964-2-7 Los Angeles Middle Canyon Santa Catalina Island 243 Comment
  UC1558121  Quercus X macdonaldii Steven a. Junak with D. Young, T. Ayers, R. Scott 1989-3-27 SC- 123 Santa Barbara just s beginning of grade to S Ridge Road (along Laguna Canyon Road); Santa Cruz Island, Laguna Canyon 152 Comment
  UC473580  Quercus X macdonaldii John Thomas Howell 1931-4-13 6348 Santa Barbara Canada del Puerta Zuela Santa Cruz Island Comment
  UC624996  Quercus X macdonaldii F. R. Fosberg 1931-12-10 7152 Los Angeles Pebble Beach Canyon, left fork Santa Catalina Island 40 Comment
  UC675618  Quercus X macdonaldii Ralph Hoffmann 1932-3-27 Santa Barbara above Baby's Harbor; Channel Islands, Santa Cruz Island Comment
  UC847948  Quercus X macdonaldii F. R. Fosberg 1932-5-7 8153 Los Angeles Upper Grand Canyon Santa Catalina Island 200 Comment
  UC847950  Quercus X macdonaldii F. R. Fosberg 1932-3-23 7513 Santa Barbara halfway between main ranch and Prisoners Harbor; Santa Cruz Island Comment
  UC848118  Quercus X macdonaldii Carl B. Wolf 1932-10-5 Los Angeles s side Black Jack Peak (below Worker's Dormitories); Santa Catalina Island 304 Comment
  UC848119  Quercus X macdonaldii F. R. Fosberg 1931-12-10 7152 Los Angeles Pebble Beach Canyon, left fork Santa Catalina Island 40 Comment
  UC848123  Quercus X macdonaldii Ira W. Clokey 1931-4-24 5171 Santa Barbara Prisoners Harbor Santa Barbara Islands, Santa Cruz Island 15 Comment
  UC848124  Quercus X macdonaldii Ira W. Clokey 1931-4-24 5171 Santa Barbara Prisoners Harbor Santa Barbara Islands, Santa Cruz Island 15 Comment
  UC848125  Quercus X macdonaldii Ira W. Clokey 1913-4-24 5172 Santa Barbara Prisoners Harbor Santa Barbara Islands, Santa Cruz Island 30 Comment
  UC848126  Quercus X macdonaldii Ira W. Clokey 1931-4-24 5172 Santa Barbara Prisoners Harbor Santa Barbara Islands, Santa Cruz Island 30 Comment
  UC848127  Quercus X macdonaldii Ira W. Clokey 1931-4-29 5173 Santa Barbara w of Pelican Bay; Santa Barbara Islands, Santa Cruz Island 125 Comment
  UC848128  Quercus X macdonaldii Ira W. Clokey 1931-4-29 5173 Santa Barbara w of Pelican Bay; Santa Barbara Islands, Santa Cruz Island 125 Comment
  UC848129  Quercus X macdonaldii Ezra C. Knopf 351 Los Angeles Santa Catalina Island Comment
  UCD14051  Quercus X macdonaldii John M. Tucker 1992-3-30 s.n. Los Angeles California, Los Angeles Co.; Santa Catalina Island, in canyon behind Haypress Reservoir, roughly 2 mi. west of Avalon, Comment
  UCD14053  Quercus X macdonaldii John M. Tucker 1992-3-30 s.n. Los Angeles California, Los Angeles Co.; Santa Catalina Island, upper Middle Ranch Canyon below pump station, roughly 4 1/2 mi. west of Avalon, Comment
  UCD164249  Quercus X macdonaldii Steven A. Junak; D. Young, T. Ayers, R. Scott 1989-3-27 SC 1234 Santa Barbara Santa Cruz Island. Laguna Canyon, along Laguna Canyon Road just S of beginning of grade to S Ridge Road. Canyon bottom, of E-facing slope above floodplain. 152 Comment
  UCD164363  Quercus X macdonaldii Steven A. Junak 1982-5-8 SC 546 Santa Barbara Santa Cruz Island. E. end of Lagunitas Secas area. Comment
  UCD170524  Quercus X macdonaldii D. O. Burge 2017-4-28 2255 Santa Barbara Santa Cruz Island, roadside on Valley Road. 230 Comment
  UCD170645  Quercus X macdonaldii D. O. Burge; C. Salk 2017-11-19 2334 Santa Barbara Santa Cruz Island, Central Valley. 80 Comment
  UCD21512  Quercus X macdonaldii Janet Takahara 1992-5-16 s.n. Los Angeles Santa Catalina Island, near Avalon. Black Jack Campground, next to tool shed. Comment
  UCD46914  Quercus X macdonaldii Don K. Sexton 1955-10-16 s.n. Yolo Center strip of U.S. Highway 40, near Liberty Island turnoff ca. 2 1/2 miles east of Davis, Yolo County, California. Comment
  UCD46915  Quercus X macdonaldii Mrs. Blanch Trask 1909-4-23 s.n. Los Angeles Catalina Isl. Comment
  UCD46916  Quercus X macdonaldii Herman Schroeder 1947-10-26 s.n. Los Angeles Only one such tree, in canyon behind Avalon, Catalina Island, Los Angeles County, California. Comment
  UCD46917  Quercus X macdonaldii Robert F. Thorne 1966-9-15 36702 Los Angeles Santa Catalina Island: Cape Canyon near small reservoir; 320 Comment
  UCD46918  Quercus X macdonaldii Olive Thacher 1921-5-1 s.n. Santa Barbara Santa Cruz Island. Comment
  UCD46919  Quercus X macdonaldii Ira W. Clokey 1981-4-29 5173 Santa Barbara Ravine west of Pelican Bay, Santa Cruz Island. 125 Comment
  UCD46920  Quercus X macdonaldii I. W. Clokey 1930-9-11 5327 Los Angeles Larel St., South Pasadena. Comment
  UCD46921  Quercus X macdonaldii Warren Roberts; Dick Hildreth and Karl Raven 1973-9-19 SCI73 20 Los Angeles Santa Cruz Island. Comment
  UCD46922  Quercus X macdonaldii M. Van Rensselaer 1936-7-31 646 Los Angeles Santa Cruz Islands, Santa Barbara County, California. 457 Comment
  UCD46924  Quercus X macdonaldii Robert F. Thorne 1967-5-18 36863 Los Angeles Santa Catalina Island: Middle Bulrush Canyon. 243 Comment
  UCD46925  Quercus X macdonaldii Ira W. Clokey 1981-4-24 5171 Santa Barbara Prisoners Harbor, Santa Cruz Island. 15 Comment
  UCD46926  Quercus X macdonaldii F. A. Pitelka 1948-9-12 350 Santa Barbara Prisoner's Harbor, Santa Cruz Island, Santa Barbara County, California. 15 Comment
  UCD46927  Quercus X macdonaldii Robert F. Thorne; P. Everett 1965-5-12 34639 Los Angeles Wet margins of small stream in Bulrush Canyon, Santa Catalina Island. 243 Comment
  UCD46928  Quercus X macdonaldii Roman Gankin; W. R. Hildreth 1966-6-5 794 Santa Barbara 1.7 miles east of La Cuesta, Valley del Medio, Sant Cruz Island, California. Comment
  UCD46929  Quercus X macdonaldii Warren Roberts; Dick Hildreth, and Karl Raven 1973-9-20 SCI73 20 Santa Barbara 100 yards N of N ridge rd, 1.8 mi E of Navy Obs Sta turnoff, near top, of middle fork of gulch at west end of Chinese Hbr. 30 yards up the draw from Quercus tomentella (SCI73-19). Santa Cruz Island. Comment
  UCD46930  Quercus X macdonaldii John M. Tucker 1941-5-29 250 Santa Barbara At the edge of the Arroyo in the Island Section, Santa Barbara Botanic Garden, Santa Barbara, California. Comment
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Feb 23 2014
  UCD46931  Quercus X macdonaldii Robert F. Thorne 1984-5-6 58425 Santa Barbara Santa Cruz Island: Prisoners' Harbor, are about the Waterfalls and adjacent Central Valley. 228 Comment
  UCD56635  Quercus X macdonaldii Janet Takahara 1992-5-16 s.n. Los Angeles Santa Catalina Island, near Avalon. Black Jack Campground, next to tool shed. Comment
  UCR17884  Quercus X macdonaldii J. D. Pinto, O. F. Clarke, et al. 1973-5-7 s.n. Santa Barbara Channel Islands, Santa Cruz Island, U.C. Station and nearby canyons to the SW Comment
  UCSB34101  Quercus X macdonaldii K. Nixon 1978-4-29 1545 Santa Barbara CA. 1.5 MI W OF PICACHO DEL DIABLO (NEAR END OF RD THAT EXTENDS N FROM CENTINELLA) Comment
  UCSB34102  Quercus X macdonaldii K. Nixon 1978-4-29 1544 Santa Barbara CA. 1.5 MI W OF PICACHO DEL DIABLO (NEAR END OF RD THAT EXTENDS N INTO N RANGE FROM CENTINELLA) Comment
  UCSB38757  Quercus X macdonaldii K. Nixon 1978-3-29 1543 Santa Barbara 1.5 MI W OF PICACHO DEL DIABLO (NEAR END OF RD THAT EXTENDS N FROM CENTINELLA INTO THE N RANGE) Comment
  A343367  Quercus X macdonaldii S. D. Dill 1891-1-1 Unknown Comment
  CAS-BOT-BC104402  Quercus X macdonaldii Fordyce Grinnell, Jr. 1916-10-6 s.n. Santa Barbara Pasadena Comment
  JEPS46701  Quercus X macdonaldii H. T. Dennison 1911-10-16 Unknown Comment
  LA205345  Quercus X macdonaldii Ira W. Clokey; 1931-4-29 5173 Del Norte Santa Cruz Island, ravine W of Pelican Bay 125.0 Comment
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Jan 24 2015
  RSA0029479  Quercus X macdonaldii Benjamin E. Carter, John R. Clark 2012-8-9 6963 Los Angeles Santa Catalina Island. Bulrush Canyon, below Salta Verde turnoff. 255 Comment
  RSA591511  Quercus X macdonaldii G. J. Harrison 1996-5-17 s.n. Ventura Hill Canyon, 0.2 miles S of Hill Canyon Sewage Treatment Facility 91 Comment
  SEINET4444053  Quercus X macdonaldii G. B. Grant 1904-1 1091 Unknown Comment
  SEINET4444054  Quercus X macdonaldii I. W. Clokey 1931-1 5172 Unknown Comment
  SEINET4444055  Quercus X macdonaldii I. W. Clokey 1931-1 5171 Unknown Comment
  SEINET4444066  Quercus X macdonaldii F. R. Fosberg 1931-1 7152 Unknown Comment



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