Difference between revisions of "Fabronia"
Atti Accad. Sci. Siena 9: 231, plate 1. 1808.
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Latest revision as of 21:37, 5 November 2020
Stems prostrate. Leaves loosely appressed when dry, spreading when moist. Capsule ovoid to pyriform, [0.3–]0.5–0.8[–1] mm.
Distribution
North America, Mexico, West Indies, Central America, South America, Eurasia, Africa, Atlantic Islands, Pacific Islands (Hawaii, New Zealand), Australia.
Discussion
Species ca. 11 (2 in the flora).
Fabronia is characterized by its very small size, ovate to oblong-lanceolate, long-acuminate, usually toothed leaves tipped with linear cells, rhomboidal laminal cells, and relatively short costa. However, because of the wide degree of morphological variability, especially within the F. ciliaris complex, Fabronia is taxonomically difficult. Discussions of Fabronia by H. A. Crum and L. E. Anderson (1981) and W. R. Buck (1994b) are enlightening with respect to taxonomic problems.
Selected References
None.
Lower Taxa
Key
| 1 | Leaf apices acute or acuminate; margins dentate or sometimes entire, not ciliate, teeth of 1 cell. | Fabronia ciliaris |
| 1 | Leaf apices acute to long-acuminate; margins ciliate-dentate, teeth often of more than 1 cell. | Fabronia pusilla |