鞘柄泡花树的考证——兼论浙江泡花树属一新亚种

The Identity of Meliosma platypoda (Sabiaceae) and its New Subspecies from Zhejiang

鞘柄泡花树Meliosma platypoda Rehder et E.H. Wilson的模式标本采自湖北,其叶柄膨大呈鞘状而包裹芽,自发表以来分类地位一直颇受争议.经查阅原始文献、模式标本和形态比较研究,从植物形态-地理的角度出发,阐释了芽的类型在泡花树属分类中的重要意义,恢复了鞘柄泡花树的种级地位;同时将华东地区的类群处理为鞘柄泡花树的新亚种,即金华泡花树M.platypoda subsp.jinhuaensis Z.H. Chen, J.S. Wang et W.Q. Lin.

The model specimen of Meliosma platypoda Rehder et E.H. Wilson was collected from Hubei Province, and the collection showed petioles flattened at the base and enclosing the buds, of which the classification status has been controversial since its publication. Basing on literature survey, model specimen and morphology comparison, the important significance of bud types in the classification of Meliosma was explained from the perspective of morphology and geography, and the species rank of M. platypoda was restored here. Meanwhile, the taxon from Zhejiang of East China were treated as a new subspecies, that was M. platypoda subsp. jinhuaensis.