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Tapeinidium (Presl) C.Chr.

Genus

Pteridophytes > Polypodiales > Lindsaeaceae

Characteristics

Small to medium-sized terrestrial ferns with very short to moderately long-creeping rhizome with at least in the larger species a true solenostele with external and internal endodermis and a medullary Strand of sclerenchyma. Scales long and narrow, glabrous, non-clathrate. Lamina up to the last divisions pinnately Compound, at least once pinnate; ultimate divisions not dichotomously divaricate. Veins free. Sori terminal on the veins, uni-or less often binerval (rarely trinerval), mostly close to the margin. Indusium rigid, attached at the base and at least the greater part of the sides. Pluricellular uniseriate filiform paraphyses present (probably in all spp.). Spores monolete. Gametophyte unknown.
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Plants terrestrial. Rhizomes shortly to long creeping, protostelic or rarely solenostelic, covered with brown narrow scales. Fronds approximate or distant; stipe dark stramineous, shallowly sulcate on adaxial surface, glabrous; lamina 1-or 2-pinnate, slightly leathery; upper pinnae gradually becoming smaller into a coadunate apex, sometimes a terminal pinna present; pinnae or ultimate pinnules or segments linear; veins free, once or twice forked on ultimate segments. Sori submarginal, terminal on a single vein; annulus consisting of 13-16 thickened cells; indusia cup-shaped, basally and partially adnate laterally. Spores ellipsoid to subglobose, monolete.
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Environment

In forests, mostly at lower and middle altitudes, to c. 2500 m.
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Hardiness (USDA) 8-12

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Cultivation

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Distribution

Tapeinidium world distribution map, present in Australia, China, Indonesia, India, Iceland, and Samoa

Identifiers

LSID urn:lsid:ipni.org:names:17225880-1
WFO ID wfo-4000037550
COL ID 7SLB
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Protolindsaya Tapeinidium

Lower taxons

Tapeinidium melanesicum Tapeinidium moluccanum Tapeinidium pinnatum Tapeinidium buniifolium Tapeinidium luzonicum Tapeinidium gracile Tapeinidium novoguineense Tapeinidium stenocarpum Tapeinidium obtusatum Tapeinidium atratum Tapeinidium biserratum Tapeinidium prionoides Tapeinidium longipinnulum Tapeinidium denhami Tapeinidium calomelanos Tapeinidium oligophlebium Tapeinidium carolinense Tapeinidium acuminatum Tapeinidium moorei
WorldFloraDB 2024