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.
 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 +