<研究報告>日本産アザミ属植物(キク科)の分類学的研究 : VI. 北日本産2新種ヒダカアザミとザオウアザミ

概要

論文の詳細を見る
Two new species of Cirsium, C. hidakamontanum Kadota and C. zawoense Kadota are described here. Cirsium hidakamontanum described from the Hidaka Mountain Range, Hokkaido, is discriminated from C. kamtschaticum by having 1) bloody reddish black heads, 2) ribbed achenes, 3) 5-seriate involucral phyllaries, 4) simple, serrulate, sessile, broadly ovate to broadly elliptic or ovate cauline leaves with auriculate bases. Cirsium zawoense described from Mt. Zawosan, northern Honshu, is distinguished from C. norikurense by having 1) glutinous involucres (the presence of glandular bodies on the midribs of inner and middle involucral phyllaries) and 2) cauline leaves glabrous on the abaxial side, and from C. nipponicum var. nipponicum by having 3) the small number of capitula, 4) the presence of glandular bodies on the midribs of inner and middle involucral phyllaries and 5) patent outer involucral phyllaries.
1999-09-22