familyEquisetaceae
Show Lower Taxa
Difference between revisions of "Equisetaceae"
Common names: Horsetail Family
Treatment appears in FNA Volume 2. Treatment on page 76.
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Revision as of 21:23, 5 November 2020
Plants with jointed stems, with distinct nodes. Leaves small, whorled, fused into sheaths; tips remaining free, toothlike. Sporangia borne on peltate sporophylls aggregated in cones 0.3–10 cm. Spores green (except white in hybrids), all 1 kind. Gametophytes green, terrestrial, unisexual; male gametophytes smaller than female.
Distribution
Nearly worldwide.
Discussion
Genus 1, species 15 (11 species in the flora).
Selected References
None.
Lower Taxa
Illustrations
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