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FNA | Family List | FNA Vol. 28 | Sematophyllaceae

4. Donnellia Austin, Bull. Torrey Bot. Club. 7: 15. 1880. • [For John Donnell Smith, 1829-1928, American taxonomist].

William R. Buck

Meiotheciopsis Brotherus

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.

Species 5 (1 in the flora): Florida, Mexico, West Indies, Central America, n South America, c Africa.

SELECTED REFERENCE Buck, W. R. 1994d. A synopsis of the American species of Donnellia (Sematophyllaceae). Hikobia 11: 377-385.

Lower Taxon


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