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Title: Systematic revision of the genus Phycodrys (Delesseriaceae, Rhodophyta) from New Zealand with the description of P. novae-zelandiae sp. nov., P. franiae sp. nov. and P. adamsiae sp. nov.
Authors: Showe-Mei Lin
Wendy A. Nelson
Contributors: 國立臺灣海洋大學:海洋生物研究所
Keywords: Rhodophyta
New Zealand
Phycodrys adamsiae sp. nov.
Phycodrys franiae sp. nov.
Phycodrys novae-zelandiae sp. nov.
Date: 2010
Issue Date: 2018-04-16T07:07:58Z
Publisher: European Journal of Phycology
Abstract: Abstract: Two species of Phycodrys, Phycodrys quercifolia (Bory) Skottsberg and Phycodrys profunda E.Y.Dawson were previously recorded from New Zealand. However, an examination of Phycodrys collections from the New Zealand region showed that all were morphologically different from P. quercifolia (Type locality: the Falkland Islands) and P. profunda (Type locality: CA, USA). RbcL sequence analyses established that the New Zealand Phycodrys species formed a natural assemblage within the genus, consisting of three new species: P. novae-zelandiae sp. nov., P. franiae sp. nov. and P. adamsiae sp. nov. Phycodrys novae-zelandiae is the largest of the three, up to 20 cm in height, with a distinct midrib and multicellular, opposite to subopposite lateral macroscopic veins. It has entirely monostromatic blades except near the midrib and veins, and its procarp contains a three-celled sterile group one (st1) and a one-celled sterile group two (st2). Phycodrys franiae was previously treated as a cryptic species among herbarium collections of P. ‘quercifolia’. It is smaller (4–11 cm high) with weakly developed midribs and veins, the blade is tristromatic throughout, except at the growing margins, and the procarp consists of a four-celled st1 and a two–three-celled st2. Phycodrys adamsiae, previously reported as P. profunda, is a small decumbent or prostrate plant, 1–8 cm long, with a midrib and inconspicuous lateral veins. The blades are tristromatic with serrated margins, two–four-celled surface spines and multicellular marginal holdfasts that differ from those of Californian specimens. The tetrasporangia are borne on marginal bladelets. Phylogenetic analyses place the New Zealand species in a separate group that is distantly removed from most other Phycodrys species.
Relation: 45(2)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/45893
Appears in Collections:[海洋生物研究所] 期刊論文

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