抄録
The chromosome-number of six species in Oryzoidcae was studied. The results can be summarized as follows:
Tribe Oryzeae n 2n
Leersia hexandra Sw. 48
Leersia oryzoides Sw. var. japonica Hack. 60
Leersia japonica Makino. 96
Hygroryza aristata Nees 24
Chikusichloa aquatica Koidz. 24
Tribe Zizanieae Zizania latifolia Turcz. 17 34
