杓兰属(兰科)中一个国产种类的新等级(英文)

New Status for a Chinese Taxon of Cypripedium (Orchidaceae)

丽江杓兰大围山变种(Cypripediumlichiangensevar.daweishanense)被提升为种的等级:大围山杓兰(Cypripediumdaweishanense)。此种的特征是:中萼片浅黄绿色,上面疏被栗色斑点;花瓣较短,近等长于或略长于唇瓣。而丽江杓兰(Cypripediumlichiangense)的中萼片为紫肝色;花瓣要长得多,大约为唇瓣长的2倍。它们均属于三组(Cypripediumsect.Trigonopedium)。该组共含11种,均为中国特有种。文中提供了一个该组的分种检索表。

Cypripedium lichiangense S.C.Chen et Cribb var.daweishanense S.C.Chen et Z.J.Liu is elevated to specific rank as Cypripedium daweishanense (S.C.Chen et Z.J.Liu) S.C.Chen et Z.J.Liu.It is characterized by having a yellowish-green and sparsely maroon-spotted dorsal sepal and shorter petals nearly as long as or slightly longer than the lip,while C.lichiangense has liver-colored dorsal sepals and much longer petals,which are nearly twice as long as the lip.They belong to Cypripedium sect.Trigonopedium,a group with 11 species all endemic to China,to which a key is herein presented.