Elementary botany . Fig. 45 Fig. in skunks cabbage. ^Photograph by the author.) 44° POLLINA TION. 441 $* life. iV | 1l ? In ^^ « \ 1 H*^EH * • ?MStRmj Fig. cabbage; upper flowers proterandrous, lower ones proterogynous. 442 RELATION TO ENVIRONMENT. for pollination before the anthers of the same flower are ripe, are proter-ogynous. 852. Now if we observe the spadix of another plant we may see a condi-tion of things similar to that shown in fig. 460. In the flowers in the upperpart of the spadix here the anthers are wedging their way through betw
Elementary botany . Fig. 45 Fig. in skunks cabbage. ^Photograph by the author.) 44° POLLINA TION. 441 $* life. iV | 1l ? In ^^ « \ 1 H*^EH * • ?MStRmj Fig. cabbage; upper flowers proterandrous, lower ones proterogynous. 442 RELATION TO ENVIRONMENT. for pollination before the anthers of the same flower are ripe, are proter-ogynous. 852. Now if we observe the spadix of another plant we may see a condi-tion of things similar to that shown in fig. 460. In the flowers in the upperpart of the spadix here the anthers are wedging their way through betweenthe armor-like plates formed by the sepals, while the styles of the sameflowers are still beneath, and the stigmas are not ready for pollination. Suchflowers are proterandrous, that is, the anthers are ripe before the stigmas ofthe same flowers are ready for pollination. In this spadix the upper flowersare proterandrous, while the lower ones are proterogynous, so that it mighthappen here that the lower flowers would be pollinated b
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Keywords: ., bookauthoratk, bookcentury1900, bookdecade1900, booksubjectbotany
