Difference between revisions of "Trichostomum tenuirostre"
Öfvers. Kongl. Vetensk.-Akad. Förh. 21: 225. 1864,.
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|subfamily=Pottiaceae subfam. Trichostomoideae | |subfamily=Pottiaceae subfam. Trichostomoideae | ||
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Revision as of 21:27, 5 November 2020
Stem rounded-pentagonal in section. Leaves flattened, lanceolate, distal margins plane, entire or weakly toothed, not bordered; apex acute, plane or keeled; basal cells differentiated across leaf base as a U or V, commonly running up margins, not distinctly enlarged submarginally; distal laminal cells pluripapillose with low papillae; mucro conic, of 3–6 cells. Sexual condition dioicous. Peristome teeth bluntly lanceolate.
Distribution
Widely distributed in temperate and high-elevation tropical areas of the world, ranging into the Arctic.
Discussion
Varieties 2 (2 in the flora).
1. Gemmae absent
3a. Trichostomum tenuirostre var. tenuirostre
1. Multicellular gemmae on rhizoids from adaxial surface of the costa or in soil
3b. Trichostomum tenuirostre var. gemmiparum
Selected References
None.
Key
1 | Gemmae absent. | Trichostomum tenuirostre var. tenuirostre |
1 | Multicellular gemmae on rhizoids from adaxial surface of the costa or in soil | Trichostomum tenuirostre var. gemmiparum |