. The elements of structural botany [microform] : with special reference to the study of Canadian plants, to which is added a selection of examination papers. Plant anatomy; Botany; Botanique; Botanique. ' ' ! 8 ELEMKNTS Ol' 8TRUCTUKAL Fir. n. You will notice tliat tlio carpel ends, at the top, in a little bent point, and that tlie convex ed"C is more or less rough and moist, so that in flowers whose antliers liavc burst open, a quan- tity of pollen will be found sticking there. This ronpli upper part of the carpel is called the sn'i/nni. Fig. 11 shows a stigma grently maL^iiific
. The elements of structural botany [microform] : with special reference to the study of Canadian plants, to which is added a selection of examination papers. Plant anatomy; Botany; Botanique; Botanique. ' ' ! 8 ELEMKNTS Ol' 8TRUCTUKAL Fir. n. You will notice tliat tlio carpel ends, at the top, in a little bent point, and that tlie convex ed"C is more or less rough and moist, so that in flowers whose antliers liavc burst open, a quan- tity of pollen will be found sticking there. This ronpli upper part of the carpel is called the sn'i/nni. Fig. 11 shows a stigma grently maL^iiificd. In many plants the stigma is raised on a stalk above the ovary. Such a stalk is called a stt/le. In the Buttercup the style is so short as to be almost suppressed. "When the style is entirely absent the stigma is said to be sessile. The " hollow part of the carpel is the omry. In our plant the pistil is not connected in any way with the calyx, and is consequently said to be free or superior, and, as the carpels are not laiited together, the pistil is said to bo ajfovtirjious. 8. Remove now all the carpels, and there remains , nothing but the swollen top of tlie peduncle. This swollen top is the reecptdde of the flower. To it. in the case of the Buttercup, all four parts, cnlyx, corolla, stamens, and pistil, are afctached. When a flower has all four of these parts it is said to be coin})lcte. 9. Let us now retuin to our statement that the struc- ture of stamens and pistils is only a modi- fication of lenf-structure generally. The stamen looks less like a leaf than any other part of the flower. Fig. 12 will, however, serve to show you the j^lan upon which the botanist considers a stamen to be formed. The anther corresponds to the leaf-blade, and the filament to the petiole. The two cells of the anther correspond to the two. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appea
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, booksubjectpl
