. The elements of structural botany with special reference to the study of Canadian plants ... Plant physiology; Plant anatomy. IRIS. 67 and astride the next one within. Leaves disposed in this manner are consequently said to be equitant {eques, a horseman). As the leaf rises upward it alters in shape, becoming flat and sword-like. Besides being equitant; these leaves, on account of their direction, are described as vertical. You will observe, also, that they are straight- veined. From the centre of the cluster of leaves rises the scape which bears the flower. If your specimen has a flower- bu
. The elements of structural botany with special reference to the study of Canadian plants ... Plant physiology; Plant anatomy. IRIS. 67 and astride the next one within. Leaves disposed in this manner are consequently said to be equitant {eques, a horseman). As the leaf rises upward it alters in shape, becoming flat and sword-like. Besides being equitant; these leaves, on account of their direction, are described as vertical. You will observe, also, that they are straight- veined. From the centre of the cluster of leaves rises the scape which bears the flower. If your specimen has a flower- bud upon it, as is most likely, you will notice the way in which its leaves are folded. The mode of folding here exhibited is common to a great many flowers, and is described as convolute. In the full-blown flower the perianth will be found to consist of six pieces, in two distinct sets of three each; the outer three are considerably ' larger than the others, and are bent backwards or reflexed; the Fig. 90. inner ones are erect. There are three stamens, each of them beneath and close against an over-arching body, the nature of which is not at first quite manifest. Cut away the perianth and the stamens, and you will then have left the three radiating coloured arches (Fig. 90), which will be seen to unite below into a slender column. Yon have also left what is apparently the swollen top of the scape. This, when cut across, is found to be a three-celled ovary, which is thus, of course, inferior. The slender column above is the style, and the Fig. 90.—Pistil of Iris. (Wood and Steele.). 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, Henry Byron, 1844-. Toronto, W. J. Gage & Co
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Keywords: ., bookcentury1800, bookdecade1890, booksub, booksubjectplantanatomy
