Two species of Dasya (Ceramiales, Rhodophyta) from Bonin Islands, southern Japan, with the description of Dasya boninensis sp. nov.

Michio Masuda, Akira Kurihara, Kazuhiro Kogame

研究成果: Contribution to journalArticle査読

3 被引用数 (Scopus)

抄録

Two species of Dasya in the Dasyaceae (Ceramiales, Rhodophyta) are reported from Bonin Islands, southern Japan. Dasya murrayana Abbott et Millar, new to Japan, is characterized by the following set of features: the tufted habit (up to 30 erect axes developing from a basal disc), small-sized (6-10 mm high and 350-500 μm in diameter in the middle region), thinly but completely corticated axes, rigid and incurved pseudolaterals forming corymbose heads at the apices of axes and branches, the absence of adventitious monosiphonous filaments, a large number of tetrasporangial stichidia and spermatangial branches per fertile pseudolateral and slender spermatangial branches (35-45 μm in diameter). Dasya boninensis Masuda, Kurihara et Kogame, sp. nov. is characterized by short but thick (10-30 mm high and 600-1000 μm in diameter at the middle portion), heavily corticated axes, indistinct pericentral cells except for the upper portion in transverse sections, soft, straight pseudolaterals and adventitious monosiphonous filaments densely covering the axis and branches, a small number of tetrasporangial stichidia and spermatangial branches per fertile pseudolateral, thick spermatangial branches (65-90 μm in diameter), and short-necked cystocarps. A dichotomous key to the taxa found in Japanese waters is given.

本文言語英語
ページ(範囲)113-124
ページ数12
ジャーナルPhycological Research
55
2
DOI
出版ステータス出版済み - 6 2007
外部発表はい

All Science Journal Classification (ASJC) codes

  • 水圏科学
  • 農業および生物科学(その他)
  • 植物科学

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