Hemiboea rubribracteata Z. Y. Li & Yan Liu, a new species of Hemiboea (Gesneriaceae) from Guangxi, China A New Species of Clematis and a New Record of Hemiboea from Guizhou Four newly recorded Gesneraceous species from Vietnam A Study of the Genus Hemiboea (Gesneriaceae) (Cont.) A NEW SPECIES OF HEMIBOEA FROM YUNNAN Anthraquinones from Hemiboea subcapitata