. A descriptive catalogue of useful fiber plants of the world, including the structural and economic classifications of fibers. Fibers. 218 USEFUL FIBER PLANTS OF THE WORLD. Lino (Span.)=Flax. Lino d'India (It.). Asclepias fruticosa. num mains. rfei Muri. Antirrhi- Linum spp. Exogens. Linacece. Small herbs or shrubs. The representatives of the geuns Linum are distributed over Loth hemispheres, though they are chiefly natives of temperate climates. While L. usitatissimum i- considered the cultivated fiber species, botanists recognize upward of 100 species in this genus, De Candolle describing 5
. A descriptive catalogue of useful fiber plants of the world, including the structural and economic classifications of fibers. Fibers. 218 USEFUL FIBER PLANTS OF THE WORLD. Lino (Span.)=Flax. Lino d'India (It.). Asclepias fruticosa. num mains. rfei Muri. Antirrhi- Linum spp. Exogens. Linacece. Small herbs or shrubs. The representatives of the geuns Linum are distributed over Loth hemispheres, though they are chiefly natives of temperate climates. While L. usitatissimum i- considered the cultivated fiber species, botanists recognize upward of 100 species in this genus, De Candolle describing 54 in the first volume of his Prodromns. In many instances the distinctions between these species are so slight that the agriculturist or the industrialist would scarcely recognize them, and they are therefore of botanical rather than economic interest. Renouard, in Etudes sur le Culture du Lin., refers to the fact that our gardens sometimes contain three varieties which differ greatly: Two species with yellow flowers, the Linum trigynum (Beinwardtia trigyna), originating in India; and the Linum campanulatum, which comes from southern Europe and from Egypt; also one with red flowers, the Linum grandiflorum. And plants with white flowers and flesh- colored flowers are sometimes seen. There are still others known by name only, as the species is very rare: such is the Linum cathar- ticum the leaves of which have a bitter taste ana are sometimes employed as a purgative. But among all these varieties the blue flower- ing, still designated by the name of Lin com- mun, ortheZ. usitatissimum of the naturalists, is the only industrial species and the only one really cultivated. In the grouping of species two general divisions have been made: Those having yellow flowers and those with flowers blue, flesh-color, pink or white, though a special distinction is made in regard to L. catharticum, " with flowers always white and leaves opposite.'7 L. usitaiissimum conies into the group havi
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