共 9 条
[3]
Fernald M.L., 1950, GRAYS MANUAL BOT, V8th
[4]
LEAVITT TP, 1963, THESIS U MASS
[5]
LUNT HA, 1950, 541 CONN AGR EXPT ST
[6]
LUTZ HAROLD J., 1928, YALE UNIV FOREST SCHOOL BULL, V22, P1
[7]
MOLISCH H, 1938, LONGEVITY PLANTS, P157
[9]
OOSTING HENRY J., 1940, BULL TORREY BOT CLUB, V67, P253, DOI 10.2307/2481173