Abstract
We present a taxonomic study of taxa of the red algae genus Herposiphonia (Rhodophyta, Rhodomelaceae), collected from the coast of eastern Guangdong, China. We made detailed morphological studies and considered recent taxonomic criteria for species delimitation, and are making the first report of five different species on the coast of Guangdong, including a new species. The species identified were H. caespitosa Tseng, H. hollenbergii Dawson, H. pecten - veneris (Harvey) Falkenberg, H. subdisticha Okamura and H. pinnata Ding and Tan sp. nov. H. pinnata sp. nov. is characterized by bright green thalli; most parts of the feathery thalli are free of the substratum; determinate branches and indeterminate branches are arranged in a chaotic sequence; the primary axis has bare segments; the determinate branch has 9–11 periaxial cells per segment; vegetative trichoblasts are abundant; and tetrasporangia are formed on the middle of the determinate branch with 1–8 successive segments in a single rectilinear series. This paper is also the first record of sporophyte plants of H. pecten-veneris.
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Supported by the National Natural Science Foundation of China (Nos. 31270257, 31400186), the Science and Technology Plan Project of Guangdong Province (Nos. 2012A020200007, 2011B031100010), the Talent Introduction Projects of Guangdong Province Universities and Colleges (2011), and the Team Project of Natural Science Foundation of Guangdong Province, China (No. S2011030005257)
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Ding, L., Tan, H., Zhang, Q. et al. Morphological study of the genus Herposiphonia (Rhodophyta, Rhodomelaceae) on the coast of eastern Guangdong, China, with a description of H. pinnata sp. nov.. Chin. J. Ocean. Limnol. 34, 271–282 (2016). https://doi.org/10.1007/s00343-015-4339-8
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DOI: https://doi.org/10.1007/s00343-015-4339-8