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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/29389

Title: Observations on Flattened Species of Gracilaria (Gracilariaceae, Rhodophyta) from Taiwan
Authors: Showe-Mei Lin
Contributors: NTOU:Institute of Marine Biology
國立臺灣海洋大學:海洋生物研究所
Keywords: taxonomy;Taiwan;Rhodophyta;Gracilariaceae;Gracilaria punctata;G.vieillardii;G. spinulosa;Hydropuntia
Date: 2006-10
Issue Date: 2011-10-21T03:05:38Z
Publisher: Journal of Applied Phycology
Abstract: Abstract:Four flattened Gracilaria species have been reported from Taiwan: G. spinulosa, G. vieillardii, G. textorii and G. punctata, identified based on branching pattern, the presence or absence of spines, and characters that often vary seasonally. Gracilaria spinulosa was originally described from the type locality, Tainan. Species with toothed margins are usually referred to G. “vieillardii”; those with smooth margins to G. “textorii”, and those with smooth margins and dark spots scattered over the blade to G. “punctata”. Molecular analyses show that specimens with marginal teeth cluster in three different groups: a G. “vieillardii” clade, a G. spinulosa clade, and a clade sister to G. spinulosa. An undescribed species comprises the third clade, which is distinguished by its relatively large gonimoblast cells and weakly developed tubular nutritive cells. The three clades can be separated by the character of the tubular nutritive cells, the size of gonimoblast cells and certain vegetative features. Plants with entire margins form a single clade characterized by cystocarps with basal tubular nutritive cells and their absence in the cystocarp cavity. They are nested in the Hydropuntia complex and are referred to as Gracilaria “punctata” here. The records of G. textorii and G. punctata from Taiwan require reinvestigation in comparison with the Japanese species.
Relation: 18(3-5), pp.671-678
URI: http://ntour.ntou.edu.tw/handle/987654321/29389
Appears in Collections:[海洋生物研究所] 期刊論文

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