共 20 条
[13]
Ornduff R., 1970, Taxon, P202, DOI 10.2307/1217955
[14]
POWELL A. M., 1963, MADRONO, V17, P128
[15]
Raven P. H., 1969, CONTRIBUTIONS US NAT, V37, P161
[18]
STEBBINS GL, 1970, ESSAYS EVOLUTION GEN
[19]
TURNER B. L., 1961, BRITTONIA, V13, P64, DOI 10.2307/2805284