Raphiocarpus jinpingensis, a New Species of Gesneriaceae in Yunnan, China STUDIES ON BIOLOGICAL AND CYTOLOGICAL EFFECTS OF HYBRIDS POLLINATED WITH IRRADIATED POLLEN IN UPLAND COTTON A Study of the Genus Hemiboea (Gesneriaceae) (Cont.) Comparation of Pollen Ultrastructural Morphology Among Pomegranate (Punica granatum)Cultivars in Shandong Province Cell Biological Characterization of Male Meiosis and Pollen Development in Rice Pollen Morphology of Morus atropurpurea with Different Ploidies Raphiocarpus jinpingensis, a New Species of Gesneriaceae in Yunnan, China STUDIES ON EXPRESSION OF SPECIFIC PROTEINS DURING POLLEN DEVELOPMENT OF ZEA MAY L. BY SINGLE POLLEN GRAIN PROTEIN ELECTROPHORESIS STUDIES ON ESTERASE ISOZYME AND SPECIFIC PROTEINS DURING DIFFERENT DEVELOPMENTAL STAGES OF POLLEN GRAINS FROM ZEA MAYS Comparation of Pollen Ultrastructural Morphology Among Pomegranate (Punica granatum)Cultivars in Shandong Province OBSERVATION ON POLLEN GRAIN OF SWEET PEPPER (Capsicum annuum L.) OFFSPRINGS AFTER space mutation A STUDY OF THE AIRBORNE AND ALLERGENIC SPORES AND POLLEN GRAINS IN KUNMING ABORTED GAMETOPHYTE 1 is required for gametogenesis in Arabidopsis STUDIES ON POLLEN MORPHOLOGY OF GENUS POTENTILLA SENSU LATO (ROSACEAE) COMPARISON OF POLLEN GRAINS OF PINELLIA AND THEIR TUBER PROTEIN IN ALCOHOL Syncytes during male meiosis resulting in 2n pollen grains formation in Lindelofia longiflora var. falconeri