Micropterygium trachyphyllum Reimers
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Authority
Gradstein, S. Robbert & Ilkiu-Borges, Anna L. 2009. Guide to the plants of Central French Guiana. Part 4. Liverworts and hornworts. Mem. New York Bot. Gard. 76 (4): i-iv + 1-140.
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Family
Lepidoziaceae
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Scientific Name
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Description
Description - Plants 1-1.5 mm wide, pale green to olive-green, ascending from branched rhizome system, forming dense cushions or mats, fre¬quently and irregularly branched. Stems rigid. Leaves obliquely to widely spreading, imbricate, ovate-oblong, asymmetrical, concave- complicate, winged along keel, wing to 5 cells wide, extending from leaf middle to apex; leaf margins toothed. Cells in midleaf quadrate, small, 15-20 µm in diameter, mammillose, evenly thick-walled, cuticle finely papillose; at least some mammillose leaf cells crowned by a large papilla on dorsal leaf surface (leaf surface never entirely smooth). Underleaves 1.5-2 times wider than stem, rounded to ovate-subquadrate, becoming smaller towards tip of stem, apical margin undulate or with a few teeth.
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Distribution
In moist lowland and sub¬montane forests, 200-600 m, common on rotten logs, occasionally on tree bases.
French Guiana South America|