Donnellia

Austin

Bull. Torrey Bot. Club 7: 15. 1880.

Etymology: For John Donnell Smith, 1829 – 1928, American taxonomist
Synonyms: Meiotheciopsis Brotherus
Treatment appears in FNA Volume 28. Treatment on page 576. Mentioned on page 572, 646.
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 TaxonIllustrator 
SemaDonnelliaCommutata.jpegDonnellia commutataPatricia M. Eckel

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).

Selected References

None.

... more about "Donnellia"
short-acuminate +
William R. Buck +
Austin +
cucullate +
erect +  and suberect +
short-cylindric +
specialized +
autoicous +, dioicous +, synoicous +  and sexual +
inflated +  and rounded +
enlarged +
differentiated +
Fla. +, Mexico +, West Indies +, Central America +, n South America +  and c Africa +
For John Donnell Smith, 1829 – 1928, American taxonomist +
papillose +  and smooth +
autoicous +  and sexual +
erect +  and erect-spreading +
lanceolate +
small;large +
Bull. Torrey Bot. Club +
light-brown +, red +  and reddish-brown +
elongate +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
falcate-secund +
widespreading +  and erect-spreading +
tapering;lanceolate;broadly ovate +
branched +  and not complanate-foliate +
redbrown +  and reddish green +
arching +, erect +, sometimes +  and reclining +
1 cm10 mm <br />0.01 m <br /> (?) +  and 2 cm20 mm <br />0.02 m <br /> (?) +
Meiotheciopsis +
Donnellia +
Sematophyllaceae +