. Essentials of botany. Botany; Botany. Fig. 137. Chestnuts. 220. The Akene. — The one-celled and one-seeded pistils of the buttercup, strawberry, and many other flowers, ripen into a little fruit called an akene (Fig. 136). Such fruits, from their small size, their dry consistency, and the fact that they never open, are usually taken for seeds by those who are not botanists. 221. The Grain Grains, such as corn, wheat, oats, barley, rice, and so on, have the interior of the ovary com- pletely filled by the seed, and the seed-coats and the wall of the ovaiy are firmly united, as shown-in Fig. 6
. Essentials of botany. Botany; Botany. Fig. 137. Chestnuts. 220. The Akene. — The one-celled and one-seeded pistils of the buttercup, strawberry, and many other flowers, ripen into a little fruit called an akene (Fig. 136). Such fruits, from their small size, their dry consistency, and the fact that they never open, are usually taken for seeds by those who are not botanists. 221. The Grain Grains, such as corn, wheat, oats, barley, rice, and so on, have the interior of the ovary com- pletely filled by the seed, and the seed-coats and the wall of the ovaiy are firmly united, as shown-in Fig. 6. 222. The Nut. —A nut (Fig. 137) is larger than an akene, usually has a harder shell, and commonly contains a seed which springs from a single ovule of one cell of a compound ovary, which develops at the ex- pense of all the other ovules. The chestnut-bur is a kind of involucre, and so is the acorn-cup. The name nut is often incorrectly applied in popular language; for example, the so-called Brazil-nut is really a large seed with a very hard testa. 223. The Follicle. — One-celled, simple pistils, like those of the columbine or the monkshood, often produce a fruit which dehisces along a single suture, usually the ventral one. Such a fruit is called a follipU (Fig. 138).. Fig. 138. Group of Follicles and a Single Follicle of the 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 Bergen, Joseph Y. (Joseph Young), 1851-1917. Boston, Ginn
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