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

5. Coniogramme robusta (Christ) Christ, Bull. Acad. Int. Géogr. Bot. 19: 175. 1909.

黑轴凤了蕨 hei zhou feng liao jue

Plants 50-80 cm tall. Rhizomes creeping, 3-5 mm in diam.; scales brown, lanceolate. Fronds scattered; stipe purplish black, lustrous, 25-40 cm × 2-3 mm, abaxially rounded, adaxially grooved; lamina oblong or broadly ovate, nearly as long as stipe, 15-40 cm wide, 1-pinnate, herbaceous or papery when dry, both surfaces glabrous; rachis and costae purplish black, brown, or straw-colored abaxially, usually lustrous. Pinnae 2-4 pairs, nearly of same shape and size, oblong or oblong-lanceolate, shortly stalked, base rounded or rounded-cuneate, somewhat unequal, margin with short and obtuse teeth, cartilaginous, apex acuminate-caudate to caudate; terminal pinna slightly larger than lateral pinnae. Veins 1- or 2-forked; hydathodes clavate or ovate, not extending to tooth base. Sori extending to bases of hydathodes.

● Forests in valleys, shaded places by roadsides; 600-1500 m. Guangdong, Guangxi, Guizhou, Hunan, Jiangxi, Sichuan.

1 Rachis and costae purplish black abaxially.   5a var. robusta
+ Rachis and costae brown or straw-colored   (2)
2 (1) Stipe, rachis, and costae straw-colored abaxially.   5b var. rependula
+ Stipe and rachis brown; costae straw-colored or sometimes brown proximally.   5c var. splendens

Lower Taxa


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