Oleandra vulpina C.Chr.

Species

Pteridophytes > Polypodiales > Oleandraceae > Oleandra

Characteristics

Rhizome long-creeping, c. 3 mm thick, sparsely branching, not glaucous, roots with unbranched parts; in cross-section with weakly developed sclerified shealth and few scattered sclerenchyma strands, fronds scattered, 3-6 cm distant. Scales scattered, not covering the rhizome, peltate, to 5 by 0.5 mm, appressed at the base, with a narrow squarrose acumen, dark brown near attachment, lighter towards margin, margin densely set with glands and multicellular hairs terminating in a gland. Fronds monomorphic, phyllopodia 6-7 mm long, with scales as the rhizome but less dense and short fine glandular hairs; stipe 2-3 mm long, without dark coloration on abaxial side, bearing short fine glandular hairs; lamina linear-lanceolate, 20-17.5 by 3-4 cm wide, base cuneate, apex short caudate, tips up to 1 cm long, margin undulate, weakly cartilaginous, texture papyraceous, all parts with to 0.5 mm long catenate glandular hairs, or with longer, to 1.5 mm, acicular hairs; costa abaxially without dark coloration, with hairs like the stipe and with small scales; veins terminating in a weakly developed hydathode before the margin. Sporangial stalk with glands below the sporangium. Sori in an irregular row 2.5-6 mm from the costa, indusium round-reniform, c. 0.5 mm across, fugacious at very early stage. Spores not seen.
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Environment

Scandent on trunk of Sago palm in garden, or in forest, at 975 m altitude.
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Cultivation

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Distribution

Oleandra vulpina world distribution map, present in Papua New Guinea

Identifiers

LSID urn:lsid:ipni.org:names:17408690-1
WFO ID wfo-0000147636
COL ID 493RH
BDTFX ID -
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Wikipedia (EN)
Wikipedia (FR)

Synonyms

Oleandra vulpina