Ultrastructural Observation on Embryo Sac Development in Phaius tankervilliae (Aiton)Bl. The Relationship between Ovule Development and Isozymes after Pollination in Phaius tankervilliae (Aiton) Bl. The Relationship between Ovule Development and Isozymes after Pollination in Phaius tankervilliae (Aiton) Bl. Induction and Determination of Tetraploid Plants of Phaius tankervilleae Growth Paths of Pollen Tubes in Ovary of Phaius tankervilliae (Aiton) Bl. (Orchidaceae) Induction and Determination of Tetraploid Plants of Phaius tankervilleae Study on Seed Germination and the Protocorm Multiplication of Phaius tankervilleae Ultracytochemical Localization of Calcium during Embryo Sac Development in Phaius tankervilliae(Orchidaceae) TWO NEW SPECIES OF PLANTS FROM GUIZHOU A newly recorded species of Phaius (Orchidaceae) from China TWO NEW SPECIES OF ORCHIDACEAE FROM YUNNAN