通过野外实地调查,结合标本和文献查阅,对深圳地区野生兰科植物种质资源、区系特征等进行研究。结果表明:(1) 深圳野生兰科植物资源共43属75种,以深圳东南部的梧桐山和东部的七娘山较为丰富。其中地生兰28属49种,附生兰13属24种,腐生兰2属2种。(2) 本次调查共发现9个深圳新记录种,其中叉柱兰Cheirostylis clibborndyeri、黄花线柱兰Zeuxine flava为广东省新记录种,二尾兰属Vrydagzynea、地宝兰属Geodorum为深圳新记录属。(3) 深圳野生兰科植物区系以热带成分为主,占非世界属总数的87.5%,温带成分仅占12.5%。(4) 与邻近地区比较,与香港共同属最丰富,有41属,占深圳总属数的95.3%;共有种70种,占深圳总种数的93.3%,具有明显的相似性。
Based on field survey, specimens and literatures, Orchid resources and floristic characteristics in Shenzhen were studied. The results were showed as follows: (1) There were 75 orchid species, belonging to 43 genera, in which terrestrial orchids were dominant with 49 species in 28 genera, and 23 species in 13 genera for epiphytic and 2 species in 2 genera for saprophytic. Orchiaceous species were mainly distributed in Mt. Wutongshan and Mt. Qiniangshan. (2) Nine species were the new records to Shenzhen, in which 2 species of Cheirostylis clibborndyeri and Zeuxine flava were the new records to Guangdong province. 2 genera of Vrydagzynea and Geodorum were the new records to Shenzhen. (3) The geographical element of wild Orchidaceous flora in Shenzhen was predominated by tropical one, accounting for 87.5% of non-world genera, the temperate elements were occupied only 12.5% of non-world genera. (4) Comparing with neighboring regions, Orcidaceous flora of Shenzhen was similar to Hong Kong, between which there were shared 41 genera including 70 species, taking up 95.3% of total genera and 93.3% of total species in Shenzhen.
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