familySematophyllaceae
genusDonnellia
Show Lower Taxa
Difference between revisions of "Donnellia"
Bull. Torrey Bot. Club 7: 15. 1880.
Etymology: For John Donnell Smith, 1829 – 1928, American taxonomist
Synonyms: Meiotheciopsis Brotherus
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Revision as of 23:50, 27 May 2020
Plants small, yellowish green, glossy. Stems 1–2 cm, not complanate-foliate, irregularly branched. Leaves erect to erect-spreading, homomallous, lanceolate; margins entire; apex gradually short-acuminate; ecostate or occasionally costa double; alar cells rounded, enlarged, scarcely inflated, pigmented, walls thin, region in 1 row, middle lamella not apparent, supra-alar cells differentiated; laminal cells long-rhomboidal, smooth. Sexual condition autoicous. Seta 0.2–0.4 cm. Capsule erect to suberect, short-cylindric; exothecial cell walls somewhat collenchymatous; operculum rostrate.
Distribution
Fla., Mexico, West Indies, Central America, n South America, c Africa.
Discussion
Species 5 (1 in the flora).