Cololejeunea diaphana A.Evans
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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
Lejeuneaceae
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Scientific Name
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Description
Species Description - Plants 0.2-0.5 mm wide with distant leaves, pale green. Branches without collar. Ventral merophyte 1 cell wide. Leaves dimorphic. Fully developed leaves 180-330 pm long and 70-110 µm wide, 2-3 times longer than wide, lanceolate with truncate, obtuse, or subacute apex, ending in 1 blunt or triangular cell, margins and often lobule keel with conically elevated, mammillose cells, leaf surface smooth or ± papillose, hyaline border and ocelli lacking. Cells in midlobe 15-25 x 10-15 µm on average, thin-walled, without or with small trigones and intermediate thickenings. Lobules 1/3-1/2 of lobe length, inflated, keel slightly curved, first tooth blunt, formed by 2 cells in a row, straight, directed towards leaf apex, with a hyaline papilla at its base, second tooth obsolete. Reduced leaves frequent, ovate-lanceolate, as large as well-developed leaves but elobulate or with lobule reduced to a narrow strip. Autoicous. Perianths obovate with 5 low folds, covered by low papillae in its upper 1/2.