Neogoniolithon (Corallinales, Rhodophyta) on the Atlantic coast of Mexico, including N. siankanensis sp. nov.
Neogoniolithon (Corallinales, Rhodophyta) on the Atlantic coast of Mexico, including N. siankanensis sp. nov.
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墨西哥大西洋沿岸的 Neogoniolithon（珊瑚目，红藻门），包括 N. siankanensis sp。
DOI：
10.11646/phytotaxa.190.1.7
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发表时间：
2014
期刊：
影响因子：
1.1
通讯作者：
P. Gabrielson
中科院分区：
文献类型：
--
作者：
L. E. Mateo;A. González;P. Gabrielson
这是第一次修订的Neogoniolithon种在墨西哥东海岸的基础上的DNA序列（psb A）和形态解剖特征。九种名称是暂时应用的基础上形态解剖学比较模式标本或与种描述：N。acceptum，拟单胞菌N. acropetum，N. erosum，拟单胞菌N. mamillare，拟野螟N. propinquum，N. Rhizopropylene，N. solubile，N. spectabile和N. strictum。因为这些种都没有模式或拓扑型材料测序，但都有其模式产地在亚热带或热带西大西洋。根据其独特的分枝叶状体、顶端四孢囊孕盘和DNA序列描述了新角石松（Neogoniolithon siankanensis）。另外还有四个物种，每个物种都有DNA序列，但没有足够的生殖材料来充分描述这些物种。一套营养和生殖特征可以充分分离目前命名的墨西哥东海岸Neogoniolithon物种，包括1）分枝与不分枝的叶状体，2）单数与二数结构，3）多囊体的配置，4）成熟四孢子囊概念的内部尺寸，5）组成四孢子囊孕头顶的细胞层数量和6）排列四孢子囊孔道的细胞形状。形态解剖描述和分布提供了所有命名的物种。
This is the first revision of Neogoniolithon species on the east coast of Mexico based on both DNA sequences ( psb A) and morpho-anatomical characters. Nine species names are provisionally applied based on morpho-anatomical comparisons with type specimens or with species descriptions: N. accretum , N. acropetum , N. erosum , N. mamillare , N. propinquum, N. rhizophorae, N. solubile , N. spectabile and N. strictum . For none of these species was type or topotype material sequenced, but all have their type localities in the subtropical or tropical western Atlantic Ocean. Neogoniolithon siankanensis is described on the basis of a distinctive branched thallus, apical tetrasporangial conceptacles and DNA sequence. Another four species are present, each characterized by DNA sequence, but insufficient reproductive material was available to adequately describe these species. A suite of vegetative and reproductive characters can adequately segregate the currently named Mexican east coast Neogoniolithon species, including 1) branched versus unbranched thalli, 2) monomerous versus dimerous construction, 3) disposition of trichocytes, 4) interior dimensions of mature tetrasporangial conceptacles, 5) number of cell layers comprising tetrasporangial conceptacle roof and 6) shape of cells that line tetrasporangial pore canal. Morpho-anatomical descriptions and distributions are provided for all named species.