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FOC | Family List | FOC Vol. 2-3 | Dryopteridaceae | Dryopteris

141. Dryopteris heterolaena C. Christensen, Acta Horti Gothob. 1: 62. 1924.

异鳞鳞毛蕨 yi lin lin mao jue

Ctenitis chingii Z. Y. Liu & J. I. Chang; C. fengiana Ching; C. heterolaena (C. Christensen) Ching; C. kwangsiensis Ching & P. S. Chiu; C. omeiensis Ching & Chu H. Wang; C. tibetica Ching & S. K. Wu; C. zhejiangensis Ching & C. F. Zhang; Dryopsis fengiana (Ching) Holttum & P. J. Edwards; D. heterolaena (C. Christensen) Holttum & P. J. Edwards; D. kwangsiensis (Ching & P. S. Chiu) Holttum & P. J. Edwards.

Rhizomes erect. Stipe castaneous, 20-60 cm; stipe scales blackish brown, lanceolate, 5-8 × ca. 0.5 mm. Lamina 2-pinnate to 3-pinnatifid, lanceolate, 35-85 × 20-30 cm; free lateral pinnae 20-30 pairs, ± spaced; basal pinnae not shortened or slightly shorter than next pair, 10-15 × 2.5-5 cm, not reflexed; middle pinnae 10-15 × 2-4 cm; pinnules usually deeply lobed, or rarely entire, hyaline margins lacking, obtuse and serrate at apex. Rachises and costae abaxially very scaly, scales on costae distinctly bullate, abaxial surfaces of costules also covered with bullate scales. Veins of ultimate pinnules pinnate, with dark brown or castaneous glands on abaxial surfaces. Sori not confined to distal part of pinnules, medial. Indusia distinct and persistent, entire or nearly so. Perispore echinate. 2n = 82*.

● Forests; 800-2400 m. Guangdong, Guangxi, Guizhou, Hunan, Sichuan, Xizang, Yunnan, Zhejiang.


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