Plant Diversity ›› 2017, Vol. 39 ›› Issue (03): 135-139.DOI: 10.1016/j.pld.2017.05.001

• Articles • Previous Articles    

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

Mengyuan Zhoua,d, Jingxia Liua,d, Yiwen Liangc, Dezhu Lia,b,d   

  1. 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
  • Received:2017-04-07 Revised:2017-05-05 Published:2021-11-05
  • Contact: Dezhu Li
  • Supported by:
    We thank Guo-Qian Yang, Liang Fang, Dr. Xiang-Qin Yu (Kunming Institute of Botany), and staff of the Diaoluo Mountain National Nature Reserve for their kind help in fieldwork; Hui Li (KIB) for help in operating stereo microscope; Ling Wang (KIB) for illustrating line drawings; Dr. Zeng-Yuan Wu, Mr. Wariss Hafiz Muhammad and Dr. Yu-Xiao Zhang (all KIB) for language editing and valuable comments. This study was supported by the National Natural Science Foundation of China (grants 31430011 and 31670396).

Abstract: 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.

Key words: Holttumochloa hainanensis, Taxonomy, GBSSI phylogeny, Biogeography, Bambusinae