. Botany of the living plant. Botany. APPENDIX A 521 Pollination. The flowers are conspicuous by their white petals, and honey is secreted on the receptacular cup between stamens and carpels. They are slightly protogynous. The result of repeated insect visits will thus be a probability of cross-poUination, though self-pollination is also possible. (28) The flower of the Dog Rose {Rosa canina, L.) is constructed on a plan similar to that of the Strawberry, but without the epicalyx. The chief difference is in the receptacle, which instead of being convex with the carpels carried up on the hemisp
. Botany of the living plant. Botany. APPENDIX A 521 Pollination. The flowers are conspicuous by their white petals, and honey is secreted on the receptacular cup between stamens and carpels. They are slightly protogynous. The result of repeated insect visits will thus be a probability of cross-poUination, though self-pollination is also possible. (28) The flower of the Dog Rose {Rosa canina, L.) is constructed on a plan similar to that of the Strawberry, but without the epicalyx. The chief difference is in the receptacle, which instead of being convex with the carpels carried up on the hemispherical axis, is hollowed into a sunken cavity. This encloses the numerous bristly carpels, while their stigmas project above. When mature the receptacle becomes succulent as in the Strawberry, forming the " hip," with the nutlets or true fruits within. (29) The Cherry {Prunus cerasus, L.) has a construction of the flower like that of the Rose, but with only one carpel borne in the hollow, cup-like receptacle (Fig. 428). It consists of : Calyx, sepals 5, inserted upon the margin of the cup-like receptacle. The odd sepal is Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bower, F. O. (Frederick Orpen), 1855-1948. London, Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1919
