familySchizaeaceae
genusActinostachys
Show Lower Taxa
Difference between revisions of "Actinostachys"
Numer. List. 1. 1829.
Common names: Ray spiked fern
Etymology: Greek aktis, ray, and stachys, spike, referring to the rays of the fertile leaves
Treatment appears in FNA Volume 2.
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|discussion=<p>Species 20 (1 in the flora).</p> | |discussion=<p>Species 20 (1 in the flora).</p> | ||
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| + | |id=wagner1985a | ||
| + | |text=Wagner, W. H. Jr. and V. Quevedo. 1985. Polymorphism in Actinostachys pennula (Swartz) Hooker and the taxonomic status of A. germanii (Fée) Prantl. [Abstract.] Amer. J. Bot. 72: 927--928. | ||
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|distribution=Nearly worldwide in tropical regions. | |distribution=Nearly worldwide in tropical regions. | ||
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|publication title=Numer. List. | |publication title=Numer. List. | ||
|publication year=1829 | |publication year=1829 | ||
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|genus=Actinostachys | |genus=Actinostachys | ||
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Latest revision as of 20:25, 5 November 2020
Plants terrestrial. Roots dark, fibrous, covered with dark, stiff hairs, 2–3 mm. Stems upright; hairs uniseriate. Leaves all fertile (even youngest), unbranched, long-petioled. Blades falsely digitate, reduced to 2–many erect to spreading terminal rays; rays appearing to be whorled but actually borne on very short rachis. Sporangia in 2–4 rows. Gametophytes subterranean, not green, tuberlike, brown-hairy. x = 134, 140.
Distribution
Nearly worldwide in tropical regions.
Discussion
Species 20 (1 in the flora).