Eucladium verticillatum (Brid.) Bruch & Schimp.
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Authority
Sharp, Aaron J., et al. 1994. The Moss Flora of Mexico. Part One: Sphagnales to Bryales. Mem. New York Bot. Gard. 69 (1): 1-452.
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Family
Pottiaceae
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Scientific Name
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Description
Species Description - Plants green above, pale-green to yellow-brown below, irregularly branched, 5-20 mm long. Leaves not crowded, usually larger toward the tip, when dry erect-spreading and incurved, when moist spreading-recurved, broadly concave, 1.7-2(-2.2) mm long, oblong-lanceolate to linear-lanceolate, acute, scarcely differentiated to ovate but not sheathing at base; margins plane, irregularly serrulate below; costa strong, decurrent at base, often 40-50 p m wide at base, shortly excurrent as a stout mucro, covered ventrally by quadrate, short-rectangular, or elongate cells and dorsally b y elongate cells; upper cells subquadrate to oval, with pellucid, slightly to moderately thick walls, 8-10 µm (occasionally as long as 15 µm in median regions), smaller at the margins, with papillae generally 2-5 per cell, low and indistinct, simple or occasionally multifid, scattered to centered; basal cells strongly differentiated across the base, smooth, hyaline, thinwalled, bulging-rectangular in median regions, 12—15(—24) µm wide and generally 4-5:1. Dioicous.
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Discussion
Fig. 183
E. verticillatum(Brid.)B.S.G.,Bryol. Eur. l(fasc. 33/36). 1846.
Weissia verticillata Brid., J. Bot. (Gott.) 1800(2): 283. 1801.
Bryum verticillatum (Brid.) Brid., Muscol. Recent. Suppl. 2(3): 40. 1803, horn, illeg., non Dicks, ex With., 1801.
Grimmia verticillata (Brid.) Sm., Engl. Bot. 18: pl. 1258. 1804.
Coscinodon verticillatus (Brid.) Brid., Bryol. Univ. 1: 374. 1826.
Mollia verticillata (Brid.) Lindb., Musci Scand. 21.1879.
Hymenostylium verticillatum (Brid.) Braithw., Brit. Moss Fl. 1: 242. 1885, nom. inval.
Tortula verticillata (Brid.) Mitt., Rept. Sci. Res. Voyage Challenger, Bot. 9(2): 89. 1885.
The plane leaf margins and irregular serration along the leaf base and upper median cells often larger than those at the margins are diagnostic.
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Distribution
On wet calcareous rock in gorges and arroyos; Baja California, Coahuila, San Luis Potosi, and Sonora.—Mexico; Central America; scattered in North America; Europe, Asia, and Africa
Mexico North America| Central America| North America| Europe| Asia| Africa|