Two New Species of Whytockia ( Gesneriaceae) from Yunnan A New Species of the Genus Whytockia W. W. Smith (Gesneriaceae) from Guizhou, China The growth pattern of shoots in Whytockia (Gesneriaceae) with phylogenetic implications A new species of Whytockia W.W. Smith (Gesneriaceae) from Yunnan Province, China Karyotypes of Whytockia (Gesneriaceae)