. The natural history of plants. Botany. 505 NATURAL HISTORY OF PLANTS. Patrinia Fig. 400. Flower (f). limb of variable form. The attenuated summit of the stem or of some of its divisions is terminated by a floral group i resembling a capitule but in reaUty formed of compound cymes with short .pedicels and free or slightly connate bracts.^ Beside Nardostachys is placed Patrinia (fig. 400), perennial herba of central and eastern Asia, having flowers with a corolla somewhat less irregular, four stamens, a short calycinal collarette, entire or very shghtly dentate, oblique or unequal
. The natural history of plants. Botany. 505 NATURAL HISTORY OF PLANTS. Patrinia Fig. 400. Flower (f). limb of variable form. The attenuated summit of the stem or of some of its divisions is terminated by a floral group i resembling a capitule but in reaUty formed of compound cymes with short .pedicels and free or slightly connate bracts.^ Beside Nardostachys is placed Patrinia (fig. 400), perennial herba of central and eastern Asia, having flowers with a corolla somewhat less irregular, four stamens, a short calycinal collarette, entire or very shghtly dentate, oblique or unequal; the flowers, yellow or white, united in compound corymbi- form cymes with axes of various degrees much more developed. The fruit has three cells, of which only one is fertile, and is often accom- panied by an accrescent orbicular bract resem- bling a wing. In Valerianella (fig. 401), one species of which (known as Mdche) is common in France and others, particularly V. olitoria (Lamb's lettuce) in Britain, the organization of the flower is the same, but there are only three stamens instead of four. One of the anterior disappears with the su- perior, and the anterior which remains is that found on the side of the one fertile ovarian cell of the three. The calyx is short, thick, with very unequal divisions or, as in V. coro- nata, with six teeth equal or nearly so. They are annual herbs with dichotomous axes, growing in Europe, Asia, N. America and northern Africa. The inflorescences, most frequently terminal, are in compound cymes, often corymbiform. Phyllactis comprises tropical American Valerians which, by their flower, approach very near to Valeriana; for the pentamerous corolla is imbricate and bears three stamens. The base of the tube is nearly regular or has an anterior gibbosity. It is surrounded by a collarette which occupies the place of a calyx and may be dentelate or inflexed, but is oftener entire, annular or cupular. They are Valerianella [Dufresnia) (yi'ien
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1871
