共 6 条
[1]
DIANOWA WJ, 1935, BOT CENTRALBL, V53, P294
[2]
KIELLANDER C. L., 1937, Svensk Botanisk Tidskrift, V31, P425
[3]
KIRKWOOD JE, 1910, AM REV TROP AGR, V1, P193
[4]
KOKIEVA E, 1932, J BOT USSR, V17, P72
[5]
POWERS, J AM SOC AGRON
[6]
STEBBINS GL, 1941, J BOT REV, V7, P507