Plant Diversity ›› 2021, Vol. 43 ›› Issue (05): 362-378.DOI: 10.1016/j.pld.2021.05.006

• Articles • Previous Articles     Next Articles

New contributions to Goodyerinae and Dendrobiinae (Orchidaceae) in the flora of China

Ji-Dong Yaa, Ting Zhanga, Tirtha Raj Pandeyb,c,d, Cheng Liua, Zhou-Dong Hanc,e, De-Ping Yef, De-Ming Heg, Qiang Liuh, Lan Yangi, Li Huanga, Rong-Zhen Zhanga, Hong Jiangj, Jie Caia   

  1. a Germplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of Sciences, Lanhei Road 132, Heilongtan, Kunming, Yunnan 650201, China;
    b State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China;
    c University of Chinese Academy of Sciences, Beijing 100864, China;
    d National Herbarium and Plant Laboratories, Godawari, Lalitpur, Nepal;
    e CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650201, China;
    f Forestry and Grassland Bureau of Pu'er, Chacheng Avenue 48, Pu'er, Yunnan 665000, China;
    g Wenshan National Nature Reserve Administration, Wenshan, Yunnan 663000, China;
    h Yunnan Forestry Technological College, Jindian Road, Kunming, Yunnan 650000, China;
    i Sichuan Wujiao Nature Reserve, Jiuzhaigou, Aba, Sichuan 623400, China;
    j Yunnan Laboratory for Conservation of Rare, Endangered & Endemic Forest Plants, Public Key Laboratory of the National Forestry and Grassland Administration, Yunnan Academy of Forestry and Grassland, Kunming, Yunnan 650201, China
  • Received:2020-11-04 Revised:2021-05-24 Online:2021-10-25 Published:2021-11-18
  • Contact: Hong Jiang, Jie Cai
  • Supported by:
    We are grateful to Xiao-hua Jin for their valuable discussions and suggestions, Lian-Yi Li for his help with image processing, Qiao-Rong Zhang, and Chang-Hong Li, for their kind assistance in the field. Ai-li Li is thanked for her outstanding illustrations. We convey our special thanks to the Forestry and Grassland Bureau of Linzhi Prefecture, Forestry and Grassland Bureau of Dehong Prefecture for their kind help in the field. This study was financially supported by National Forestry and Grassland Administration (2019073017, 2019073019), National Science & Technology Infrastructure, the Large-scale Scientific Facilities of the Chinese Academy of Sciences (2017-LSFGBOWS-02), grants from the National Natural Science Foundation of China (Nos. 41672018, 31670194, 31870195) and the Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences (No. Y4ZK111B01), National Wild Plant Germplasm Resource Center for Yunnan Academy of Forestry and Grassland (ZWGX2003).

Abstract: Eight new species from China, Cheirostylis chuxiongensis, C. yei, Myrmechis lingulata, M. longii, Bulbophyllum ximaense, B. xizangense, B. retusum and B. pulcherissimum, are described and illustrated. Cheirostylis chuxiongensis differs from C. thailandica by having 5-9 irregular and papillae-like calli on each side in the sac of the lip, epichile with entire lobes, petals narrowly obliquely obovate and an apex that is not recurved. Cheirostylis yei is easily distinguished from its relatives similar by having a long stem, pubescent ovary and sepals, epichile lobes with irregular and undulate margins, a subquadrate callus without teeth in the saccate hypochile. Myrmechis lingulata differs from M. chinensis by having a simple and lanceolate to ligulate lip, glabrous bracts and ovary, oblique and narrowly ovate petals. Myrmechis longii differs from M. pumila by having white-veined leaves, oblong-lanceolate epichile lobes, and viscidium attached to the middle of the caudicle. Bulbophyllum ximaense is easily distinguished from its relatives similar by having distant pseudobulbs, shorter scape, an inflorescence with 9-16 orange-red flowers, shorter lateral sepals with a long acuminate apex, incurved and tubular apical margins, a papillate lip disk and triangular-subulate stelidia. Bulbophyllum xizangense is easily distinguished from its relatives similar by having narrow lanceolate leaves, shorter inflorescence with 1-3 greenish-yellow flowers, falcate-ovoid lateral sepals, a lip with small lateral lobes and 3 keels at the base. Bulbophyllum retusum differs from B. spathulatum by having shorter inflorescence, peduncles with 2 tubular sheaths, dorsal sepals with a retuse apex, lateral sepals with lower edges that are connate to each other and free and divergent toward the apex, obovate petals with an acute or slightly retuse apex. Bulbophyllum pulcherissimum differs from B. lopalanthum by its 5-veined dorsal sepal, ovate-lanceolate lateral sepals, obliquely ovate-oblong petal, erose-toothed margins and obovate lip with a large, oblong basal callus, and an obtuse base. In addition, three species (Bulbophyllum frostii, B. raskotii and B. nematocaulon) are reported for the first time in China.

Key words: Bulbophyllum, Cheirostylis, China, Myrmechis, New species, Taxonomy