Polystichum deltodon

對生耳蕨

Polystichum deltodon (Baker) Diels

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

名彙資訊

學名發表文獻

Diels. 1899. Die Natürlichen Pflanzenfamilien 1(4): 191. (Nat. Pflanzenfam.)

台灣首次記錄發表文獻

Tagawa. 1939. Acta phytotaxonomica et geobotanica eng 8: 26. (Acta Phytotax. Geobot.)

異名

Polystichum tosaense (Makino) Makino

Makino. 1909. The Botanical magazine, Tokyo 23: 144. (Bot. Mag. Tokyo)
Polystichum pseudo-deltodon Tagawa

Tagawa. 1937. Acta phytotaxonomica et geobotanica eng 6: 159. (Acta Phytotax. Geobot.)
Polystichum deltodon (Bak.) Diels var. pseudo-deltodon (Tagawa) Tagawa

Tagawa. 1940. Acta phytotaxonomica et geobotanica eng 9: 136. (Acta Phytotax. Geobot.)

各語言俗名

中

對生耳蕨

特徵描述

形態特徵

Stipes 10-20 cm long, nearly glabrous except basal part, basal scales brown, oblong-lanceolate, margin irregularly denticulate, apex acuminate.
Lamina pinnate, 17-37 cm long, 2-4 cm broad, linear, thinly coriaceous; pinna 1.1-2.1 cm long, 4-8 mm broad, square-ovate or oblong, apex obtuse or round, lower edge usually strait, parallel to upper edge, margin weakly serrate; small scales on undersurface of pinna narrowly lanceolate.
Sori terminal on veinlets, much nearer to margin than to costa; indusia small, membraneous, nearly entire on margin, caducous.

分布

台灣 : at medium altitude.
世界 : Indo-China, China, Japan and Luzon.

引證標本

ILAN: Lankanshan, Peng 1629. HSINCHU: Pagawankei, Simozawa s. n. 1939. TAICHUNG: Lishan, Kuoh, Chuma & Chang 8670. NANTOU: Tongpu hot spring, Hsu 3422. TAITUNG: Paolai to Haituan, Kuo 2762. HUALIEN: Chingsuishan, Wang 2364.