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舌叶瓦韦 Lepisorus loriformis var. steniste

花匠小妙招
2025-01-16 19:52

39b.Lepisorus loriformis var. steniste (C. B. Clarke) Ching, Bull. Fan Mem. Inst. Biol. 4: 82. 1933.

舌叶瓦韦 she ye wa wei

Polypodium lineare var. steniste C. B. Clarke, Trans. Linn. Soc. London, Bot. 1: 559. 1880; Lepisorus steniste (C. B. Clarke) Y. X. Lin; Pleopeltis linearis T. Moore var. steniste (C. B. Clarke) Beddome; Polypodium lineare f. steniste (C. B. Clarke) Takeda; P. loriforme f. angustifrons (Takeda) C. Christensen; P. loriforme var. steniste (C. B. Clarke) C. Christensen; P. oblongisorum C. Christensen; P. subintegrum Baker; P. subimmersum f. angustifrons Takeda.

Rhizome 1-1.5 mm in diam.; scales light brown, 3-6 × 1-1.2 mm. Lamina linear, 30-60 × 0.2-0.5 cm. Sori 1.5-2 mm in diam.; paraphyses 0.15-0.3 mm in diam.

On tree trunks or rocks in forests. Xizang, Yunnan [N India, Myanmar, Nepal].

Lepisorus loriformis and L. steniste differ only in lamina width, the former with laminae 0.5-2.5 cm wide and the latter not more than 0.5 cm. These two species are sympatric, and the former usually occur at higher elevations, so species rank has not been accepted. This is not accepted by Li Wang et al. (Molec. Phylogen. Evol. 54: 221. 2010) whose molecular analysis placed the two taxa within different well-supported subclades.