New Records and Clarification of Some Names of Pteridophyta in Hong Kong(Ⅱ) Notes on Gesneriaceae from Guangdong Province Additions to the orchid flora of Guizhou, China Athalamia glauco-virens Shim. & Hatt. (Cleveaceae), a new record to China Two genera and four species of the Orchidaceae newly recorded in China Newly Recorded Species of Naviculaceae (Bacillariophyta) in China The Occurrence of Tropical nipponica in Southeast Yunnan and its Phytogeographical Significance A Bauhinia(Leguminosae)Species New to China