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Ceratodon stenocarpus Bruch & W. P. Schimper [Ditrichaceae]


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Database links

UC Specimens in the University and Jepson Herbaria Public Portal

Specimens of Ceratodon stenocarpus in the Consortium of North American Bryophyte Herbaria portal (CNABH)

Ceratodon stenocarpus, Bryol. Eur. 2(fasc.(29/30). 1846, -- Ceratodon purpureus var. stenocarpus (Bruch & W.P.Schimper) Dixon, New Zealand Inst. Bull. 3(2): 50. 1914.

   Plants to 3 cm high in dense to loose turfs, yellow-green to olive-green or, in exposed sites, red-brown. Leaves contorted to somewhat crispate when dry, spreading when moist, to 1.8 mm long, 3–5: 1, lanceolate to ovate-lanceolate, keeled above, gradually narrowed from near the base to the acute apex. Median cells quadrate, smooth, to 10 µm broad, 1–1.5: 1, in very regular rows, with lumen/wall ratio about 5: 1 and with rounded lumens due to small corner thickenings. Marginal cells mostly like those of the adjacent lamina but sometimes rectangular, to 4: 1. Basal cells, especially those of the juxtacostal region, to 14 µm broad, to 5: 1, rectangular and pellucid with straight lateral walls, arranged in regular rows, moderately thick-walled with the lumen/wall ratio about 2: 1, not pitted. Cells of abaxial costal surface similar to those of lamina; those of adaxial costa rectangular, 3–8: 1, to 10 µm wide. Costa occupying 1/10 of leaf base, gradually tapering and subpercurrent to percurrent. Costa cross-section with a single layer of guide cells and with two strong stereids and a well-differentiated abaxial epidermis. Margin recurved from near the base to near the apex, remotely and often inconspicuously serrulate at least near the apex. Axillary hairs to 150 µm, 3-celled, with one basal brown cell. Stem with inconspicuous central strand, with cells very thin-walled throughout except for one or two layers of thicker-walled, much smaller outer cortical cells. Rhizoids smooth, densely placed on older portions of stems, red-brown and to 30 µm wide at insertion, densely branched into 8 µm wide hyaline ultimate branchlets. -- Putatively dioicous. Perichaetial leaves oblong, convolute and sheathing seta, to 4 mm long, truncate and often long mucronate at apex. Seta to 30 mm, yellow to yellow brown, straight, smooth. Capsule mostly only somewhat inclined, glossy yellow-brown to brown. Urn cylindrical but broadest at base, inclined to horizontal, asymmetric, to 2 mm long, about 3–4: 1, usually strongly sulcate and somewhat strumose. Annulus well-differentiated and revoluble. Operculum conic, to 1 mm long. Peristome reddish-brown, to 500 µm long, finely papillose throughout, bifid into filiform segments nearly to base. Exothecial cells more or less rectangular with oblique end-walls, not in regular rows, to 18 µm wide, 4–6: 1, rather thin-walled. Stomata abundant on neck. Spores spherical, to 14 µm, nearly smooth.

 

 

 

 

 

Vouchers: Mariposa Co.: Road to Mariposa Grove near Wawona Entrance Station, Yosemite National Park, Shevock 21434; Monterey Co.: Cemetery on Lockwood Road about 2 km east of Alamo Air Strip, Hunter-Liggett Military Reservation, Norris 87334 and Fish & Game Office on Garden Road, Lind s.n. (CAS) [determined by Robinson]; Santa Barbara Co.: Orcutt Hill, Bratt s.n. (SBBG); Santa Cruz Co.: Mount Hermon Road near Felton, Kellman 2803 (CAS); Shasta Co.: Mill Creek Road at Boulder Creek Trail, Whiskeytown National Recreation Area, Norris & Hillyard 105365; Tehama Co.: Highway 36 at Georgie Dells Road, Norris 56067.

Literature: Kellman 2003.


Geographic subdivisions for
Ceratodon stenocarpus: CaR, CW, NW, SN.
map of distribution

Illustration References: Malcolm et al. 2009 p. 275; Flowers 1973; Lawton 1971; Sharp et al. 1994; Smith 1978.

No illustrations found in database.

Ceratodon stenocarpus
click for enlargement
© 2014 Scot Loring
Ceratodon stenocarpus
click for enlargement
© 2014 Scot Loring
Ceratodon stenocarpus
click for enlargement
© 2014 Scot Loring
Ceratodon stenocarpus
click for enlargement
© 2014 Scot Loring
Ceratodon stenocarpus
click for enlargement
© 2014 Scot Loring
Ceratodon stenocarpus
click for enlargement
© 2014 Scot Loring
Ceratodon stenocarpus
click for enlargement
© 2014 Scot Loring
Ceratodon stenocarpus
click for enlargement
© 2014 Scot Loring
Ceratodon stenocarpus
click for enlargement
© 2014 Scot Loring

More photos of Ceratodon stenocarpus in CalPhotos

Elevation by latitude plot for Ceratodon stenocarpus
   in California