Abstract:The present paper deals with the morphology in leaf, flower, fruit, seed and woodof 5 species of Sonneratia Linn. f. in China, which involve S. ovata Backer, S. hainanensisKo, E. Y. Chen et W. Y. Chen, S. alba J. Smith, S. paracaseolaris Ko, E. Y. Chen et W. Y.Chen and S. caseolaris (L.) Eng1. It was shown that the morphological characters of the twonew species (S. hainanensis and S. paracaseolaris) are evidently different from that of othersspecies of Sonneratia. The relationship of these species are also discussed.
