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FOC | Family List | FOC Vol. 2-3 | Ophioglossaceae | Botrychium

12. Botrychium ternatum (Thunberg) Swartz, J. Bot. (Schrader). 1800(2): 111. 1801.

阴地蕨 yin di jue

Osmunda ternata Thunberg in Murray, Syst. Veg., ed. 14, 927. 1784; Sceptridium ternatum (Thunberg) Lyon.

Plants small, winter-green. Rhizomes erect, short, annually producing 1 frond (10-)15-55 cm tall. Sterile lamina: stalk 5-12 cm or longer, ca. 2 mm in diam.; lamina ternate, tri- or quadripinnatifid, dull green, subpentagonal, 5-10 × 8-12 cm, somewhat thickly herbaceous, glabrous, apex acute; pinnae subdeltoid, basal ones stalked; segments broadly elliptic or broadly ovate, sparsely crenate, apex rounded; veins pinnate, free. Sporophore arising 2-4 cm above base of common stipe (or below middle of common stipe), much taller than sterile lamina; stalk 12-25 cm; lamina bi- to tripinnate, subdeltoid, 4-10 cm; sporangia globose, attached on both lateral sides of axes. Spore surface irregularly reticulate with minute granules. 2n = 90.

In shaded shrubs; 400-1000 m. Anhui, Chongqing, Fujian, Guangdong, Guangxi, Guizhou, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Liaoning, Shaanxi, Shandong, Sichuan, Taiwan, Zhejiang [temperate and warm regions of E Asia including within the Himalaya, India, Japan, Korea, Nepal, and Vietnam].


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