Difference between revisions of "Crossidium squamiferum var. pottioideum"
Laubm. Eur., 315. 1927,.
Basionym: Tortula squamifera var. pottioidea De Notaris Musci Ital., 22. 1862
Synonyms: Crossidium griseum
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Latest revision as of 21:29, 5 November 2020
Leaves with margins recurved to erect and whitish distally, undifferentiated proximally. Seta 5–8 mm. Capsule urn short-cylindric, 1–2.1 mm; operculum 0.6–1.1 mm; peristome short, nearly straight, cribrose, 198–520 µm.
Phenology: Capsule mature May–Aug(-Dec).
Habitat: Banks, sandy soil or rocks along dry washes
Elevation: 1000-1500 m
Distribution
Ariz., Calif., Colo., Nev., Utah, Mexico (Baja California), Europe, Asia, n Africa, Atlantic Islands (Canary Islands).
Discussion
M. J. Cano et al. (1993) did not recognize var. pottioideum as a distinct taxon. However, the character states given in the key offer good reasons to retain it, despite some intergradation with var. squamiferum.
Selected References
None.
Lower Taxa
None.
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