. The botany of crop plants; a text and reference book. Botany, Economic. So BOTANY OF CROP PLANTS spikelet with its parts removed in order. Each spikelet is subtended by these two empty bracts. Following the sug- gestion of Piper, we shall designate these two basal, empty bracts as ^^glumes.'" The lower of these is the "first glume," the upper the "second ; Above the two glumes, on the rachilla, are one or more bracts; each one of these is known as a lemma (flowering glume and inferior palea of some authors). Normally, there is a flower in the axil of each lemma
. The botany of crop plants; a text and reference book. Botany, Economic. So BOTANY OF CROP PLANTS spikelet with its parts removed in order. Each spikelet is subtended by these two empty bracts. Following the sug- gestion of Piper, we shall designate these two basal, empty bracts as ^^glumes.'" The lower of these is the "first glume," the upper the "second ; Above the two glumes, on the rachilla, are one or more bracts; each one of these is known as a lemma (flowering glume and inferior palea of some authors). Normally, there is a flower in the axil of each lemma. Opposite each lemma is a two-nerved, two- keeled, bract-like structure, the palet (the palea, tjj ^lume rachis Fig. 2g.—Spikelet of common wheat (Triticum asstivum) dissected, the parts removed in order. bracteole, and superior palea of some authors). Its back is turned toward the rachilla. It frequently envelops the other parts of the flower with its infolded edges. The palet is never awned (bearded). While the glumes and lemmas are inserted on the rachilla, the palet is inserted on a very short flower stalk (pedicel). At the base of the ovary, on the side opposite the palet, are two minute scales, the (anterior) lodicules (Fig. 30). Inside the palet, and placed farther up on the flower stalk, are three stamens and a single pistil. Thus we see that in the typical spikelet there are two glumes. 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 Robbins, Wilfred William, 1884-1952. Philadelphia, P. Blakiston's Son & Co
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectbotanyeconomic
