. Cyclopedia of farm crops : a popular survey of crops and crop-making methods in the United States and Canada. Agriculture -- Canada; Agriculture -- United States; Farm produce -- Canada; Farm produce -- United States. Fig. 354. A cotton flower, and a bud or "square," showing the bracts. of three to five bracts surrounding the flowers, and by the seed being covered with wool. Many attempts have been made to classify and limit the species of Gossypium, but so far the authorities have failed to agree. The great variability and tendency to hybridize make it very difficult to determine
. Cyclopedia of farm crops : a popular survey of crops and crop-making methods in the United States and Canada. Agriculture -- Canada; Agriculture -- United States; Farm produce -- Canada; Farm produce -- United States. Fig. 354. A cotton flower, and a bud or "square," showing the bracts. of three to five bracts surrounding the flowers, and by the seed being covered with wool. Many attempts have been made to classify and limit the species of Gossypium, but so far the authorities have failed to agree. The great variability and tendency to hybridize make it very difficult to determine to what species a given plant may belong. However, it is commonly conceded that there are only a few spe- cies whose products enter into commerce, and that the bulk of the production is from two species, namely, G. hirsutum, which furnishes the upland cottons (Figs. 101, 355, 356, 357), and G. Barba- dense, the source of the sea-island and Egyptian cottons (Figs. 100, 356, 357). The ordinary upland cotton in American literature has been commonly referred to as G. herbaccum, but after a careful study of types Mr. L. H. Dewey, of the United States Department of Agriculture, has concluded that this is an error and that our upland cotton, which is apparently derived from a wild Mexican variety, is G. hirsutum. In the United States G. hirsutum and G. Barbadense are the only two species that are cultivated commercially. The crop of India, which, aside from that of the United States, is the largest produced by any country, is probably derived principally from varieties of G. herbaccum, while the Egyptian crop is produced by varieties which are supposed to belong to the species G. Bar- badense. Thc! Egyptian cotton varieties resemble sea-island cotton very closely in all of their prin- cipal characters aside from the lint, which in some of the varieties, such as Mit-afirt and Ashmouni, is light brown and rather coarse and crinkly. All cultivated species are perennial in climates withou
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