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Plant Diversity 2017, 39(03) 135-139 DOI:   http://dx.doi.org/10.1016/j.pld.2017.05.001  ISSN: 2096-2703 CN: 53-1233

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Holttumochloa hainanensis
GBSSI phylogeny

Distribution of Holttumochloa (Poaceae: Bambusoideae) in China with description of a new species revealed by morphological and molecular evidence

Mengyuan Zhou a, d, Jingxia Liu a, d, Yiwen Liang c, Dezhu Li a, b, d, *

a Plant Germplasm and Genomics Center, Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
b Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China
c Diaoluo Mountain National Nature Reserve, Lingshui, Hainan 572434, China
d University of Chinese Academy of Sciences, Beijing 100049, China


Holttumochloa has previously only been recorded from Malaysia. Here we describe and illustrate a new species, Holttumochloa hainanensis sp. nov., from the lowland montane forests of Diaoluo Mountain on the Island of Hainan, South China. Morphologically, H. hainanensis is similar to Holttumochloa korbuensis, but can be clearly distinguished from it in having larger culms covered by white wax, longer leaf blades, larger pseudospikelets and anthers. Furthermore, molecular phylogeny based on the nuclear gene GBSSI corroborates the identification of the new species and its affinity. The biogeographical significance of the new record of Holttumochloa in South China is also highlighted in this study.

Keywords Holttumochloa hainanensis   Taxonomy   GBSSI phylogeny   Biogeography   Bambusinae  
Received 2017-04-07 Revised  Online: 2017-05-13 
DOI: http://dx.doi.org/10.1016/j.pld.2017.05.001
Fund:the National Natural Science Foundation of China (grants 31430011 and 31670396)
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