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FOC | Family List | FOC Vol. 2-3 | Polypodiaceae | Loxogramme

6. Loxogramme formosana Nakai, Bot. Mag. (Tokyo). 43: 8. 1929.

台湾剑蕨 tai wan jian jue

Loxogramme ensiformis Ching; L. grandis Ching & Z. Y. Liu (1984), not Copeland (1908).

Rhizome short, erect, densely scaly; scales pale brown, broadly ovate, ca. 5 × 2.5 mm, margin entire, apex acuminate; cells small, dense. Fronds in tufts, monomorphic; stipe short, thick, abaxially glossy brown or purplish, 1-3 cm, flattened; lamina abaxially paler, adaxially deep green, oblanceolate, 20-35 × 3-3.5 cm, widest at upper 2/3, leathery, thick and fleshy, glabrous, base decurrent on stipe, apex acuminate; costa slightly raised on both surfaces; veins invisible, anastomosing to form elongated areoles with included veinlets. Sori confined to upper half of fronds, oblique, rather close to costa, ± sunken into lamina, paraphyses absent. Spores ellipsoid-monolete.

● Epilithic on moss-covered rocks or epiphytic in evergreen broad-leaved forests; 1600-2300 m (in Taiwan). Chongqing, Guizhou, Sichuan, Taiwan, S Yunnan.


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