Elaphoglossum stelligerum (Wall. ex Baker) T.Moore ex Alston & Bonner
Elaphoglossum stelligerum (Wall. ex Baker) T.Moore ex Alston & Bonner, Candollea 15: 216. 1956; Sledge, Bull. Brit. Mus. (Nat. Hist.) Bot. 4: 92. 1967; Tagawa & K.Iwats., Fl. Thailand 3: 304. 1988; Boonkerd & Pollawatn, Pterid. Thailand: 186. 2000. – Acrostichum stelligerum Wall. ex Baker in Hook. & Baker, Syn. Fil. ed. 2: 521. 1874.
Acrostichum yunnanense Baker, Bull. Misc. Inform. Kew 1898: 233. 1898. – Elaphoglossum yunnanense (Baker) C.Chr., Contr. U.S. Natl. Herb. 26: 327, 335. 1931; Tardieu & C.Chr., Fl. Indo-Chine 7(2): 539. 1941; Holttum, Rev. Fl. Malaya ed. 1, 2: 455, f. 264. 1955 [‘1954’]; Tagawa & K.Iwats., SouthE. Asian Stud. 5: 89. 1967.
Elaphoglossum viscosum auct. non J.Sm.: Bedd., Handb. Ferns Brit. India: 420, f. 250. 1883.
Rhizome short creeping, densely scaly throughout; scales light brown, up to 7 by 0.7 mm, persistent, subentire or with irregular teeth at margin. Sterile frond: stipe stramineous, 5–10(–20) cm in length, densely scaly throughout; scales various, like those on rhizome, minute and hair-like, or stellate; lamina linear-lanceolate, more or less falcate, gradually narrowing towards both ends, 20–50 by 1.5–3 cm; midrib raised on both surfaces, densely covered with scales; veins simple or a few times forked, parallel, the apex ending at margin of frond, hardly visible on both surfaces or distinct on lower surface in dried specimens; papyraceous, deep green, densely covered on both surfaces with brown long-armed stellate scales, upper surface of lamina often glabrescent, lower surface occasionally so. Fertile frond lower than the sterile one; stipe like those of the sterile fronds, longer; lamina linear, acute at apex, 20–35 by 1–1.5 cm, densely covered with stellate scales on upper surface.
Distribution in Thailand
NORTHERN: Chiang Mai, Phitsanulok; NORTH-EASTERN: Loei.
Distribution in Laos
N India, SW China and C. Vietnam.
On mossy rocks, often in stream beds, or on mossy tree trunks in dense evergreen forest at altitudes above 1000 m.
IUCN Conservation Assessment
Least Concern (LC) as listed on the IUCN Red List at http://www.iucnredlist.org/apps/redlist/details/177172/0.
Voucher specimens - Thailand
Middleton et al. 5079, Phitsanulok, Phu Hin Rong Kla National Park (E); Middleton et al. 5144, Loei, Phu Luang Wildlife Sanctuary (E).
Voucher specimens - Laos
Poilane 28568, Champasak, Boloven Plateau (P).
Rhizome and stipe bases
Scales on rhizome and stipe bases
Sterile and fertile fronds
Upper surface of young frond
Upper surfaces of sterile and fertile fronds
Lower surfaces of sterile and fertile fronds
Lower surface of fertile frond
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