. Textbook of pastoral and agricultural botany, for the study of the injurious and useful plants of country and farm. - rachij Fig. 49. Fig. 50. Fig. 49.—Single spikelet of common wheat (Triticum [(estivum). X 2. (Rohbins.)Fig. 50.—Rye {Secale cereale). A, a single spikelet at a joint on the rachis; B,grain, external view; C, grain in cross-section. A, X2}); B and C, XS- (Robbins.) perianth segments of ordinary monocotyledons, such as the lily, are repre-sented by three (bamboos), two (most grasses), or a single small bodyknown as a lodicule, or a squamula. It is the swelling of these lodicule
. Textbook of pastoral and agricultural botany, for the study of the injurious and useful plants of country and farm. - rachij Fig. 49. Fig. 50. Fig. 49.—Single spikelet of common wheat (Triticum [(estivum). X 2. (Rohbins.)Fig. 50.—Rye {Secale cereale). A, a single spikelet at a joint on the rachis; B,grain, external view; C, grain in cross-section. A, X2}); B and C, XS- (Robbins.) perianth segments of ordinary monocotyledons, such as the lily, are repre-sented by three (bamboos), two (most grasses), or a single small bodyknown as a lodicule, or a squamula. It is the swelling of these lodiculeswhich causes the separation of lemma from palet permitting the anthersand styles to emerge. A floret without lodicules never opens. Thestamens of the grasses have long filaments and anthers, which are reallyadnate, but by the growth of the anther lobes below the point of attach-ment of the filament and the final swinging of the anther in the wind, thewhole arrangement strongly suggests the versatile anther. Most grasses ECONOMIC IMPORTANCE OF GRASSES 127
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