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Lemmaphyllum accedens (Blume) Donk

Species

Pteridophytes > Polypodiales > Polypodiaceae > Microsoroideae > Lemmaphyllum

Characteristics

Small fern. Rhizome to 1.1 mm thick, long-creeping, internodes 1.5-4 cm long, sparsely covered with scales. Anatomy: ground tissue parenchymatous, sclerenchyma strands few, vascular strands 3-7. Rhizome scales to 4.4 by 1.6 mm, base dentate or sometimes lacerate, acumen gradually narrowed, dentate, apex acute, sometimes filiform. Fronds mono-to dimorphic, sparsely covered with deciduous clathrate scales. Sterile fronds: stipe absent or to 0.7 cm long, lamina to 10 by 2.7 cm, orbicular to ovate, rarely obovate, margin entire, apex rounded to acute. Fertile fronds to 17.5 by 1.8 mm, ovate to elliptic, fertile in the, mostly contracted, upper part. Sori round to elliptic, medially between costa and margin in contracted parts of the frond, more marginal in wider parts.
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Rhizome c. 1 mm diam. Scales thin, narrow, 1-3 mm long, 0.5-1 mm wide; margins with slender hair-like teeth. Stipe slender, 2-6 mm long, winged to the base. Sterile lamina ovate to broadly ovate or elliptic, 2-4 cm long, 0.8-1.1 cm wide, chartaceous. Fertile lamina 3-8 cm long, chartaceous, broadest towards the base which is mostly cuneate but sometimes rounded, 0.9-1.3 cm wide, tapering gradually or somewhat abruptly into a narrow apical region, 1-2 mm wide near the rounded apex; midrib and margins bearing small scales. Sori not or only slightly impressed into lamina surface. Spores 55-72.5 µm long, 40-50 µm wide.
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Environment

Epiphytic in rainforest.
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Hardiness (USDA) 9-12

Usage

Uses environmental use
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Cultivation

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Distribution

Lemmaphyllum accedens world distribution map, present in American Samoa, Australia, Fiji, Micronesia (Federated States of), Indonesia, Malaysia, Philippines, Papua New Guinea, Solomon Islands, Thailand, and Samoa

Identifiers

LSID urn:lsid:ipni.org:names:17402010-1
WFO ID wfo-0001115944
COL ID 3TFJR
BDTFX ID -
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Wikipedia (EN)
Wikipedia (FR)

Synonyms

Craspedaria cuspidiflora Craspedaria javanensis Lepidogrammitis accedens Lepidogrammitis damunensis Phymatopsis accedens Polypodium damunense Weatherbya damunensis Pleopeltis acuminata Pleopeltis damunensis Drynaria cuspidiflora Goniophlebium javanense Microsorum accedens Pleuridium cuspidiflorum Polypodium lyciaefolium Drynaria acuminata Lepisorus accedens Weatherbya accedens Polypodium accedens Lemmaphyllum accedens Pleopeltis accedens
WorldFloraDB 2024