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FOC | Family List | FOC Vol. 2-3 | Pteridaceae | Haplopteris

5. Haplopteris mediosora (Hayata) X. C. Zhang, Ann. Bot. Fenn. 40: 460. 2003.

中囊书带蕨 zhong nang shu dai jue

Vittaria mediosora Hayata, Icon. Pl. Formosan. 5: 346. 1915; V. stenophylla Copeland; V. tibetica Ching & S. K. Wu.

Rhizome shortly creeping or ascending; scales brown, bright iridescent, linear-lanceolate, 3-7 × ca. 0.2 mm, margin minutely denticulate, apex bristlelike. Fronds clustered; stipe slender, ca. 1 mm thick, 4-5 cm; lamina herbaceous, linear, 10-25 × 0.2-0.3 cm, base attenuate, margin straight or slightly revolute, apex gradually narrowed; costa invisible adaxially, raised abaxially, flattened, slender. Soral line superficial, between costa and margin of lamina; paraphyses long, with head obconic, as long as wide. Spores monolete, elliptic in outline, surface ornamentation obscure.

Epiphytic or epilithic; 2300-3500 m. W Sichuan, C Taiwan, Xizang, C Yunnan [E Himalaya, Philippines].


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