著者

芹沢 俊介 Serizawa Shunsuke

出版者

植物地理・分類学会 = The Society for the Study of Phytogeography and Taxonomy

雑誌

植物地理・分類研究 = The journal of phytogeography and taxonomy (ISSN:03886212)

巻号頁・発行日

vol.55, no.1, pp.29-33, 2007-10-31

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Taraxacum maruyamanum is a diploid dandelion endemic to the Oki Islands, western Japan. Morita(1995)regarded this dandelion as a subspecies of T. platycarpum. Taraxacum maruyamanum, however, is characterized by elongate, lanceolate or broadly lanceolate and hardly corniculate outer bracts of involucres. These characters are remarkably distant from the geographic trends of morphological variation in T. platycarpum s. lat. Taraxacum maruyamanum, therefore, should be treated as a distinct species.