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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/45888

Title: Hymenenopsis heterophylla gen. et sp. nov. (Delesseriaceae, Rhodophyta) from New Zealand, based on a red alga previously known as Hymenena palmata f. marginata sensu Kylin, with emphasis on its cystocarp development
Authors: Showe-Mei Lin
Wendy A. Nelson
Max H. Hommersand
Contributors: 國立臺灣海洋大學:海洋生物研究所
Keywords: rbcL sequence analysis
Hymenenopsis heterophylla gen. et sp. nov.
New Zealand
Cystocarp development
Date: 2012
Issue Date: 2018-04-16T06:39:03Z
Publisher: Phycologia
Abstract: Abstract: The alga known as Hymenena palmata f. marginata (Harvey) Kylin has been thought to be confined to the northern part of the South Island and the southern part of the North Island of New Zealand and is represented by a variety of thallus forms. The pattern of its apical growth is similar to that of Hymenena palmata (Harvey) Kylin, a poorly known species that is said to be widespread throughout New Zealand. As a consequence, H. palmata f. marginata has been misplaced under Hymenena for a long time. Unlike many species of Hymenena, the thallus branches entirely from the margins and lacks both macroscopic nerves and microscopic veins. Phylogenetic analysis of rbcL sequence data shows that, while H. palmata f. marginata is a member of the subfamily Phycodryoideae, it belongs in the Phycodryeae rather than the Cryptopleureae, a tribe that includes Hymenena, where it might otherwise be placed based on its gross morphology and growth by means of a marginal meristem with many obliquely dividing marginal cells. Procarp and cystocarp development are similar to that of the Phycodryeae, and the carposporangia are formed in chains rather than terminally as in Hymenena. The cystocarp of H. palmata f. marginata is unusual in that cells derived from the cystocarp floor form secondary pit connections with a large central fusion cell. We propose the name Hymenenopsis heterophylla S.-M. Lin, W.A. Nelson & Hommersand gen. et sp. nov. for this New Zealand red alga.
Relation: 51(1) pp.62-73
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/45888
Appears in Collections:[海洋生物研究所] 期刊論文

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