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Published In: Bryologia Europaea 1: 93 (fasc. 33–36. Monogr. 3). 1846. (Bryol. Eur.) Name publication detail
 

Project Name Data (Last Modified On 10/22/2013)
Acceptance : Accepted
Project data     (Last Modified On 10/22/2013)
Nomenclature: E. verticillatum (Brid.) B.S.G., Bryol. Eur. 1(fasc. 33/36). 1846.
Weissia verticillata Brid., J. Bot. (Gštt.) 1800(2): 283. 1801.
Bryum verticillatum (Brid.) Brid., Musc. Recent. 2(3): 40. 1803, hom. 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.
Distribution: On wet calcareous rock in gorges and arroyos; Baja California, Coahuila, San Luis Potos’, and Sonora. - Mexico; Central America; scattered in North America; Europe, Asia, and Africa.
Discussion: 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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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 µm wide at base, shortly excurrent as a stout mucro, covered ventrally by quadrate, short-rectangular, or elongate cells and dorsally by 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, thin-walled, bulging-rectangular in median regions, 12-15(-24) µm wide and generally 4-5:1. Dioicous.
 

 

 
 
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