我国粤东沙菜属(红藻门 杉藻目)的分类鉴定 *

doi:10.11978/2020028

Abstract

Abstract:

Hypnea as one of the raw materials for carrageenan has significant economic value. Due to its wide geographical distribution, strong phenotypic plasticity and lack of detailed anatomical features, the species identification has always been controversial. Using morphological and anatomical methods, we carried out a taxonomic study on genus Hypnea using samples from Shantou, eastern Guangdong province from 2013 to 2014. According to the identification, there are four species, namely Hypnea boergesenii, H. chordacea, H. charoides and H. japonica. We provide the internal and external structural characteristics and geographical distributions of these species, and discuss the division of the family-level taxonomy of Hypnea (Hypneaceae/Cystocloniaceae), including whether H.boergesenii is an independent species.

Key words: Guangdong, red algae, Hypnea, morphology, taxonomy

CLC Number:

P735.52

LIU Jinmei, JIANG Jingjing, MA Xin, HUANG Bingxin, YANG Nan, LIU Meiyuan, DING Lanping. Morphological taxonomy of genus Hypnea (Rhodophyta, Gigartinales) from eastern Guangdong, China[J].Journal of Tropical Oceanography, 2021, 40(1): 99-110.

Figures/Tables 8

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References 66

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	粗糙沙菜H.aspera	密毛沙菜H.boergesenii	鹿角沙菜H.cervicornis	易曲沙菜H.flexicaulis	本文样品
藻体	不缠结	不缠结	缠结	缠结	不缠结
质地	软骨质	软骨质	膜质/亚软骨质	肉质/软骨质	软骨质
高度	5~7cm	6~13cm	10~14cm	5~35cm	6~10cm
主轴	明显	明显	不明显	不明显	明显
分枝角度	≤90°	常<90°	≤90°	45~150°	≤90°
枝端	伸直/弯曲	伸直/尖细	伸直/分叉/鹿角状	弯曲/钩状/鹿角状	伸直/尖细
镜状加厚	有	有	有	无	有
四分孢子囊位置	基部	基部/中部/上部	基部/中部	基部/中部	基部/中部/上部
四分孢子囊大小	长50~75μm; 宽22~37μm	长28~36μm; 宽17~19μm	长30~52μm; 宽17~27μm	长35~55μm; 宽15~25μm	长28~40μm; 宽17~28.5μm
模式产地	新喀里多尼亚	中国台湾	巴西	日本	广东汕头
参考文献	Kützing, 1868; Nauer et al, 2014	Tanaka, 1941; Nauer et al, 2014	夏邦美等, 1999; Nauer et al, 2014	Yamagishi et al, 2000	本文

	粗糙沙菜H.aspera	密毛沙菜H.boergesenii	鹿角沙菜H.cervicornis	易曲沙菜H.flexicaulis	本文样品
藻体	不缠结	不缠结	缠结	缠结	不缠结
质地	软骨质	软骨质	膜质/亚软骨质	肉质/软骨质	软骨质
高度	5~7cm	6~13cm	10~14cm	5~35cm	6~10cm
主轴	明显	明显	不明显	不明显	明显
分枝角度	≤90°	常<90°	≤90°	45~150°	≤90°
枝端	伸直/弯曲	伸直/尖细	伸直/分叉/鹿角状	弯曲/钩状/鹿角状	伸直/尖细
镜状加厚	有	有	有	无	有
四分孢子囊位置	基部	基部/中部/上部	基部/中部	基部/中部	基部/中部/上部
四分孢子囊大小	长50~75μm; 宽22~37μm	长28~36μm; 宽17~19μm	长30~52μm; 宽17~27μm	长35~55μm; 宽15~25μm	长28~40μm; 宽17~28.5μm
模式产地	新喀里多尼亚	中国台湾	巴西	日本	广东汕头
参考文献	Kützing, 1868; Nauer et al, 2014	Tanaka, 1941; Nauer et al, 2014	夏邦美等, 1999; Nauer et al, 2014	Yamagishi et al, 2000	本文

Morphological taxonomy of genus Hypnea (Rhodophyta, Gigartinales) from eastern Guangdong, China

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