Alsophila spinulosa

台灣桫欏

Alsophila spinulosa (Wall. ex Hook.) R.M.Tryon

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

R.M.Tryon, Contributions from the Gray Herbarium of Harvard University 200: 32. 1970. (Contr. Gray Herb.)

台灣首次記錄發表文獻

Taiwan Pteridophyte Group, Taiwania 64(4): 383. 2019.

異名

Alsophila taiwaniana Nakai

Nakai, The Botanical magazine, Tokyo 41: 68. 1927. (Bot. Mag. Tokyo)
Cyathea spinulosa Wall. ex Hook.

Liao, Memoirs of the College of Agriculture, National Taiwan University 10(2): 38. 1969. (Mem. Coll. Agr. Natl. Taiwan Univ.)
Alsophila spinulosa (Hook.) Tryon

DeVol, Flora of Taiwan 1: 137. 1975. (Fl. Taiwan)

各語言俗名

中

山棕. 正山棕. 細葉筆筒樹. 蛇木. 木羊齒. 桫欏.

參考文獻

Lee, Plant map - The lowland vegetation of Taiwan 127. 2000. (Pl. Map)
Lu, Ou & Lu, Illustrations of Trees of Taiwan 1: 11. 1997. (Ill. Tr. Taiwan)

特徵描述

形態特徵

Trunks up to 5 m tall, 15 cm in diameter.
Stipes persistent, spiny (spines 3-4 mm long at base), 30-40 cm long, 1-2 cm across. greenish, purplish towards base, fronds tripinnatifid to tripinnate; pinnae 45-60 cm long, the lower pinnae much shortened (15-20 cm long); pinnules 8-10 cm long, short-stalked, the margins serrate; veins usually once-forked (sometimes in groups of 3 or 4); upper surface hispid along rachis, rachillae and costae; lower surface glabrous with small thin ovate or irregular scales along costae and veins; stipe scales brown, shiny, 20 mm long, 1.5 mm wide, margins dull.
Sori round, large, in row on either side of casta; indusia thin, membranceous, globose, fugacious.

分布

世界 : Nepal, India, Burma, China, Okinawa and Japan.

引證標本

TAIPEI: Yangmingshan, DeVol 7807; Tatungshan, Kuo 1409. ILAN: Is. Kueishan, Kuo 1568. HSINCHU: Luchangtashan, Fukuyama 3428. TAICHUNG: Pahsienshan, Suzuki 2871. NANTOU: Sun Moon Lake, Huang 1239; Lienhuachih, Kao 44056. KAOHSIUNG: Shanping, Yang 52. PINGTUNG: Kuskus, Kudo & Suzuki 15990. TAITUNG: Taoking, Yamamoto & Mori 177; Antung, Yamamoto 12. HUALIEN: Mukuasham, Kao 4200.