. The botany of crop plants : a text and reference book. Botany, Economic. 234 BOTANY OF CROP PLANTS species, is the fleshy bases of leaves. In some species, as leek and shallot, the leaves are used as a seasoning in food. The leaves may be either flat or cylindrical (terete), and are sometimes hollow. Onions have been known to bear buds (epiphyllous buds) on their leaves. Inflorescence (Fig. 91).—The numerous flowers are in simple, terminal umbels. The umbel is subtended by a. Fig. 91.—Umbel of onion (Allium cepa). spathe, consisting of two (rarely three) papery bracts. The spathe encloses th
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. The botany of crop plants : a text and reference book. Botany, Economic. 234 BOTANY OF CROP PLANTS species, is the fleshy bases of leaves. In some species, as leek and shallot, the leaves are used as a seasoning in food. The leaves may be either flat or cylindrical (terete), and are sometimes hollow. Onions have been known to bear buds (epiphyllous buds) on their leaves. Inflorescence (Fig. 91).—The numerous flowers are in simple, terminal umbels. The umbel is subtended by a. Fig. 91.—Umbel of onion (Allium cepa). spathe, consisting of two (rarely three) papery bracts. The spathe encloses the entire umbel in the bud. The pedicels are long and slender. Flower.—The flowers (Fig. 87) are regular and perfect., The perianth consists of six distinct segments which are very similar as to size, shape and color. The six stamens are inserted on the bases of the perianth segments. Alternate. 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 work.. Robbins, Wilfred William, 1884-1952. Philadelphia : P. Blakiston's Son