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STUDIES ON THE MORPHOLOGY AND THE ULTRASTRUCTURE OF THEMATURE FLORAL NECTARY OF NYMPHOIDES PELTATUM (GMEL) O. KUNTZ DURING THE NECTAR SECRETARY PERIOD

STUDIES ON THE MORPHOLOGY AND THE ULTRASTRUCTURE OF THEMATURE FLORAL NECTARY OF NYMPHOIDES PELTATUM (GMEL) O. KUNTZ DURING THE NECTAR SECRETARY PERIOD

荇菜成熟花蜜腺的形态及其泌蜜过程的超微结构研究