共 34 条
[2]
ALSHERIFI K, 1952, THESIS U CALIFORNIA
[3]
CROSS G. L., 1936, BULL TORREY BOT CLUB, V63, P451, DOI 10.2307/2480955
[8]
CROSS GL, 1941, AM J BOT, V28, P473
[9]
DOAK CLIFTON C., 1935, ILLINOIS BIOL MONOGR, V13, P1
[10]
ERSPAMER JL, 1952, THESIS U CALIFORNIA