Dudresnaya babbittiana (Dumontiaceae, Gigartinales), a new red algal species from Midway Atoll, North Central Pacific

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• 作者：Abbott ; Isabella A. ; McDermid ; Karla J.
• 关键词：algues rouges / Dudresnaya babbittiana / Gigartinales / nouvelle espè ; ce / taxinomie ; Dudresnaya babbittiana / Gigartinales / new species / red algae / taxonomy
• 刊名：Cryptogamie Algologie
• 出版年：2001
• 出版时间：2001
• 年：2001
• 卷：22
• 期：3
• 页码：249-261
• 全文大小：1.41 M

文摘

Dudresnaya babbittiana I.A. Abbott et McDermid, sp. nov., is described from subtidal habitats at Midway Atoll, among the westernmost reefs and lagoons and series of islets in the Hawaiian archipelago. The new species differs in size, habit, internal rhizoids and auxiliary-cell morphology from the two species that have been previously described from the high islands of Hawaii about 1 400 km to the southeast, D. hawaiiensis R.K.S. Lee and D. littleri I.A. Abbott. Closest affinities appear to be with D. capricornica Robins et Kraft from tropical eastern and western Australia, which differs in having a much greater abundance of medullary rhizoids, more consistently present and larger hexagonal crystals in central-axial cells, a far less regular alignment of surface cortical cells, and differently structured carpogonial and auxiliary-cell filaments.