Ishii H S,Sakai S.Temporal variation in floral display size and individual floral sex allocation in racemes of Narthecium asiaticum (Liliaceae) [J].American Journal of Botany,2002(89):441-446.
Moller A P,Eriksson M.Pollinator preference for symmetrical flowers and sexual selection in plants[J].Oikos,1995,73(1):15-22.
[9]
Bhardwaj M,Eckert C G.Functional analysis of synchronous dichogamy in flowering rush,Butomus umbellatus (Butomaceae) [J].American Journal of Botany,2001(88):2204-2213.
[10]
Kron P,Stewart S,Back A.Self-compatibility,autonomous self-pollination,and insect-mediated pollination in the clonal species Iris versicolor[J].Canadian Journal of Botany Revue Canadienne De Botanique,1993,71(11):1503-1509.