Abstract:The authors have observed the chromosome numbers of 12 mangrove species growing on the salty and muddy coasts and 2 island species belonging to Rhizophoraceae and Sonneratiaceae in China. The chromosome numbers of seven taxa, namely Bruguiera sexangula, B. sexangula var. rhynchopetala, Rhizophora stylosa, Sonneratia hainanensis, S. paracaseolaris, S. ovata and Carallia brachiata, are reported for the first time, which give a supplement to chromosome data of Chinese mangroves. Fourly-four names, which repres...