. 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. A COMPOSITE FLOWER. 43 the hort stion with IKS. i ethal-j solete.' rved. noits. by two nto two. Fig. 54. are all radical. CHAPTER VIII. KXAMINATION OK COMMON PLAN I'H WITH KPIPETALOUS STA- M HNH— DANDELION—CATNIP. 60. Dandelion. The oxamination of this llower will be somewhat more difficult than that of any we have yet undertaken. Provide yourselves with specimens in flower and in seed. The r
. 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. A COMPOSITE FLOWER. 43 the hort stion with IKS. i ethal-j solete.' rved. noits. by two nto two. Fig. 54. are all radical. CHAPTER VIII. KXAMINATION OK COMMON PLAN I'H WITH KPIPETALOUS STA- M HNH— DANDELION—CATNIP. 60. Dandelion. The oxamination of this llower will be somewhat more difficult than that of any we have yet undertaken. Provide yourselves with specimens in flower and in seed. The root of the plant, like that of the Mallow, is a tap-root. The stem is almost suppressed, and, as in the case of the Hepatica, the leaves They are also net-veined. The flowers are raised on scapes, which are hollow. At first sight the flower appears to have a calyx of many sepals, and a corolla of many petals. Both of these ap- pearances, however, are contrary to facts. With a sharp knife cut the flower through the middle from top to bottom (Fig. 54). It will then appear that the flower, or rather floiver-head, is made up of a large number of distinct pieces. With the point of your needle detach one of these pieces. At the lower end of it you have a small body resembling an unripe seed (Fig. 55). It is, in fact, an ovary. Just above this there is a short bit of stalk, sur- mounted by a circle of silky hairs, and above this a yellow tube with one side greatly prolonged. This yellow tube is a corolla, and a close examination of the extremity of Fig. {i4.—Vertical section of Dandelion flower. Fig. 66—Single floret. Pig. 55. 11. 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 Spotton, H. B. (Henry Byron), 1844-1933. Toronto : W. J. Gage
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Keywords: ., book, bookcentury1800, booksubjectbotany, booksubjectplantanatomy
