familyPsilotaceae
genusPsilotum
Show Lower Taxa
Difference between revisions of "Psilotum"
J. Bot. (Schrader) 1800(2): 8, 109. 1801.
Common names: Whisk-fern
Etymology: Greek psilos, naked, referring to the plant's leafless aerial shoots
Treatment appears in FNA Volume 2.
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Latest revision as of 21:23, 5 November 2020
Plants terrestrial, sometimes epiphytic. Aerial shoots often clumped, simple proximally, dichotomously branched distally, 3(–several)-ridged. Appendages minute, bractlike, borne distally on ridges of aerial shoots, sterile appendages subulate, those subtending synangia 2-lobed. Synangia ± globose, obscurely 3-lobed.
Distribution
Tropical and warm temperate regions.
Discussion
Species 2 or 3 (1 in the flora).