兰科一新属和新亚族——丫瓣兰属和丫瓣兰亚族(英文)

Ypsilorchis and Ypsilorchidinae, a new genus and a new subtribe of Orchidaceae

基于丫瓣兰Ypsilorchis fissipetala(Finet)Z.J.Liu,S.C.Chen & L.J.Chen(基名为裂瓣羊耳蒜Liparis fissipetala Finet)建立了兰科新属——丫瓣兰属Ypsilorchis Z.J.Liu,S.C.Chen & L.J.Chen。新属与羊耳蒜属Liparis的区别点为:新属有两个粉蜡质花粉团;每个花粉团具1个多少有弹性的花粉团柄;花瓣二深裂;叶具强烈波状的边缘,其先端有一个长达1 mm的芒尖。这些特征表明了其与羊耳蒜亚族Liparidinae有明显的差别,为此,建立了一个新的亚族——丫瓣兰亚族Ypsilorchidinae Z.J.Liu,S.C.Chen & L.J.Chen。

A new orchid genus, Ypsilorchis Z. J. Liu, S. C. Chen ＆ L. J. Chen, is established based on Ypsilorchisfissipetala （Finet） Z. J. Liu, S. C. Chen ＆ L. J. Chen （basionym： Liparisfissipetala Finet）. The new genus differs from Liparis and its allies by having two granular-waxy pollinia each with a somewhat elastic caudicle, deeply bilobed petals and strongly crisped-margined leaves with an apical awn to 1 mm long. These features are an indication of its distant relation to the members of the subtribe Liparidinae, and thus a new subtribe, Ypsilorchidinae Z. J. Liu, S. C. Chen ＆ L. J. Chen, is proposed.