Ophioglossum crotalophoroides Walter

Bulbous adderstongue (en)

Species

Pteridophytes > Ophioglossales > Ophioglossaceae > Ophioglossoideae > Ophioglossum

Characteristics

Roots to 20 per plant, blackish, usually extremely narrow, often almost hairlike, less than 0.1 mm diam., proliferations not reported. Stems spheric, 3-12 mm diam., succulent, cormlike with perforation at apex, apical meristem located at bottom of cavity through which leaves emerge at top, leaves 2 per stem. Trophophore stalk to 0.6cm, 0.1-0.2 times as long as trophophore blade. Trophophore blade lying nearly flat on ground, not folded longitudinally, pale green throughout, deltate to cordate, to 3 × 2 cm, contracted abruptly at truncate to cordate base, apex with apiculum. Venation coarsely reticulate with included veinlets. Sporophores arising at ground level, 1-5 times as long as trophophore; sporangial clusters usually short, less than 1 cm, 2-3 mm wide, with 3-8 pairs of sporangia, apiculum to 1.5 mm.
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Hardiness (USDA) 5-12

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Cultivation

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Distribution

Ophioglossum crotalophoroides world distribution map, present in Brazil and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:17167410-1
WFO ID wfo-0001109034
COL ID 49X83
BDTFX ID -
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Wikipedia (EN)
Wikipedia (FR)

Synonyms

Ophioglossum crotalophoroides

Lower taxons

Ophioglossum crotalophoroides subsp. robustum Ophioglossum crotalophoroides var. nanum Ophioglossum crotalophoroides subsp. crotalophoroides