Difference between revisions of "Trichostomum portoricense"

H. A. Crum & Steere

Bryologist 59: 250. 1956,.

Synonyms: Trichostomum molariforme R. H. Zander
Treatment appears in FNA Volume 27. Treatment on page 492. Mentioned on page 489.
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|hierarchy=Pottiaceae;Pottiaceae subfam. Trichostomoideae;Trichostomum;Trichostomum portoricense
 
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Latest revision as of 21:28, 5 November 2020

Stem rounded-pentagonal in section. Leaves flat but narrowly keeled along costa, long-ligulate, distal margins plane, entire (or tattered by fragmentation), not bordered; apex narrowly rounded, blunt, keeled; basal cells differentiated across leaf base, not running up margins, not distinctly enlarged submarginally; distal laminal cells with a massive multiplex papillae over each lumen; mucro short-conic, of ca. 3 cells. Sterile in range of the flora.


Habitat: Soil, rock, calcareous substrates

Distribution

V27 715-distribution-map.gif

La., Tex., Mexico, West Indies, Central America (Belize, Guatemala, Honduras).

Discussion

Trichostomum portoricense is a distinctive species with no immediate relatives in the genus. The deep, narrow groove down the adaxial surface of the leaf is reminiscent of that of species of Barbula or Anoectangium. The massive, caplike papillae are similar to those of Tuerckheimia, but the long-ligulate leaf shape of T. portoricense is diagnostic. The leaf lamina fragments easily in patches, and doubtless figures in asexual reproduction. The distribution was recently summarized by P. M. Eckel (2003).

Selected References

None.

Lower Taxa

None.
... more about "Trichostomum portoricense"
Richard H. Zander +
H. A. Crum & Steere +
Undefined subfam. Trichostomaceae +
La. +, Tex. +, Mexico +, West Indies +, Central America (Belize +, Guatemala +  and Honduras). +
Soil, rock, calcareous substrates +
Trichostomum molariforme +
Trichostomum portoricense +
Trichostomum +
species +