. The elements of structural botany with special reference to the study of Canadian plants ... Plant physiology; Plant anatomy. «2 ELEMENTS OF STRUCTURAL BOTANY. 107. Next let us inspect a speGimen of the Common Meadow-Grass. The inflorescence of this very common grass (Kg. 105) is a greenish panicle. The spikelets (Fig. 106) contain from three to five flowers, and are laterally/ compressed. The glumes are the lowest pair of scales, and they are generally shorter than the flowers within them. Observe the delicate whitish margin of the lower palet of each flower (Fig, 107), and the thin texture
. The elements of structural botany with special reference to the study of Canadian plants ... Plant physiology; Plant anatomy. «2 ELEMENTS OF STRUCTURAL BOTANY. 107. Next let us inspect a speGimen of the Common Meadow-Grass. The inflorescence of this very common grass (Kg. 105) is a greenish panicle. The spikelets (Fig. 106) contain from three to five flowers, and are laterally/ compressed. The glumes are the lowest pair of scales, and they are generally shorter than the flowers within them. Observe the delicate whitish margin of the lower palet of each flower (Fig, 107), and the thin texture of the upper one. Count also, if you can, the five nerves on the lower palet, and observe the two teeth at the apex of the upper one. In this Grass the principal thing to notice is that there are several flowers loithin each pair of glumes. 108. A common pest in wheat-fields is the Grass known as Chess. It is comparatively easy of examination on account of the size of the spikelets (Fig. 108) and flow- ers. The spikelets form a spreading panicle, each of them being on a long, slender, nod- ding pedicel, and containing from eight to ten flowers. Of the two glumes at the base of each spikelot one is consider- ably larger than the other. The outer or lower palefc of each flower is tipped with a bristle or awn (Fig. 109), while the upper palet at length becomes attached to the groove of the oblong grain. Observe that the glumes are not awned. 109. The Couch Grass is another very common weed in cultivated grounds. In this Grass the spikelets are. Fig. 109. Fig. 108.—Spikolet of Chess. FiR. 109.—Single flower. (Qray.). 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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