Diplazium sikkimense (C.B.Clarke) C.Chr.

Species

Pteridophytes > Polypodiales > Athyriaceae > Diplazium

Characteristics

Plants evergreen, large. Rhizome erect, robust, up to 6 cm in diam., with fleshy thick roots; fronds caespitose. Fertile fronds up to 3 m or longer; stipe dark stramineous to light brown, up to 1.5 m, up to 1.4 cm in diam., with sparse brown, broadly ovate, adpressed, peltate scales; lamina 2-pinnate with pinnules pinnatipartite, deltoid, up to 1.5 m or longer, base up to 1.5 m wide, apex acuminate; pinnae up to ca. 10 pairs, alternate, ascending, with stalk up to ca. 10 cm, oblong-lanceolate, up to 75 × 23 cm, base truncate, apex acuminate; pinnules up to 17 pairs, subopposite, spreading, subsessile, lanceolate, up to 12 × 3 cm (to base), base truncate, margin pinnatipartite to 4/5 to costule, apex acuminate; basal pair of pinnule lobes slightly reduced; pinnule lobes up to 16 pairs, spreading, oblong, up to 1.4 cm × 6 mm, slightly oblique, margin slightly serrate, apex rounded; veins visible adaxially, prominent abaxially, pinnate, veinlets 5-8 pairs per lobe, bifurcate, ascending. Lamina papery, green abaxially, gray-green adaxially when dry, both surfaces glabrous; rachis dark stramineous, costa and costule stramineous or green-stramineous, prickly and scaly abaxially; scales brown, broadly ovate, cordate, adpressed. Sori very short, ovate or oblong, slightly longer than wide, up to 1 mm, up to 6 pairs per pinnule lobe, mostly single, some double; indusia brown, ovate, thickly membranous, vaulted, irregularly ruptured on back. Spores reniform, perispore prominent, subglabrous on surface. 2n = 82.
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Growth form herb
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Foliage retention evergreen
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Hardiness (USDA) 7-12

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Cultivation

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Distribution

Diplazium sikkimense world distribution map, present in Bangladesh, Bhutan, China, India, Myanmar, Nepal, Taiwan, Province of China, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:1049121-2
WFO ID wfo-0001122933
COL ID 36HXY
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Asplenium sikkimense Asplenium torrentium Diplazium torrentium Allantodia torrentia Asplenium sikkimensis Allantodia sikkimensis Diplazium brevicarpium Diplazium beamanii Diplazium sikkimense