Difference between revisions of "Myurella"
in P. Bruch and W. P. Schimper, Bryol. Europ. 6: 39, plate 560. 1853.
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Revision as of 21:15, 16 December 2019
Plants threadlike, pale green, yellow-green, or glaucous green. Stems simple to irregularly branched; paraphyllia absent. Leaves erect to wide-spreading, imbricate or widely spaced, round to ovate; margins erect, subentire, serrulate, or spinose-dentate; apex obtuse, acuminate, or apiculate; costa single, double, short, weak, or almost ecostate; alar cells not differentiated; laminal cells rhomboidal, faintly prorulose to strongly 1-papillose abaxially, walls firm. Capsule erect to nearly horizontal, cylindric, symmetric.
Distribution
Nearly worldwide except Antarctica.
Discussion
Species 9 (3 in the flora).
Species of Myurella are small, slender plants of calcareous rock shelves and calcareous moist soil, mostly in boreal and arctic zones. The capsules are smooth.
Selected References
None.
Lower Taxa
Key
| 1 | Laminal cells 1-papillose abaxially. | Myurella sibirica |
| 1 | Laminal cells faintly prorulose abaxially | > 2 |
| 2 | Leaves imbricate, erect; apices rounded-obtuse to occasionally short-apiculate. | Myurella julacea |
| 2 | Leaves distant, erect to spreading; apices shortly acuminate-apiculate. | Myurella tenerrima |