New Status for a Chinese Taxon of Cypripedium (Orchidaceae)

Cypripedium lichiangensem 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/i> sect.Trigonopedium,a group with 11 species all endemic to China,to which a key is herein presented.