. Selected western flora : Manitoba, Saskatchewan, Alberta . Botany; Botany; Botany. 122 SELECTED WESTERN FLORA 2. P. sericea, (Graham) Gray. Stem 4-12 in. high from a branching rootstock, leafy to the top; leaves pinnately parted into numerous narrow lobes, these being sometimes further pinnatifid, the upper nearly sessile; flowers violet-blue or white on short spikes, crowded in a close panicle. S. Alta. and Rocky Mts. north to Bow River. LXXVII. (Figwort Family). Herbs -with exstipulate leaves and perfect, complete, but irregular flowers. Calyx inferior, persistent, 4 or
. Selected western flora : Manitoba, Saskatchewan, Alberta . Botany; Botany; Botany. 122 SELECTED WESTERN FLORA 2. P. sericea, (Graham) Gray. Stem 4-12 in. high from a branching rootstock, leafy to the top; leaves pinnately parted into numerous narrow lobes, these being sometimes further pinnatifid, the upper nearly sessile; flowers violet-blue or white on short spikes, crowded in a close panicle. S. Alta. and Rocky Mts. north to Bow River. LXXVII. (Figwort Family). Herbs -with exstipulate leaves and perfect, complete, but irregular flowers. Calyx inferior, persistent, 4 or 5-cleft; corolla gamopetalous, 2-lipped, or, in some cases, almost regular; stamens 2-5, didynamous or equal; fruit usually a many-seeded capsule. i. LINARIA. Toadflax. Calyx 5-parted; corolla 2-lipped, spurred at the base on the lower side; stamens 4, didyna^ mous; capsule thin-walled. Herbs with alter- nate upper leaves and showy flowers. 1. L. vulgaris, Hill. Btjtter and Eggs. Erect, glabrous, leafy; leaves pale, linear; flowers Fig. 73. — Linaria yellow, showy, in a dense raceme. Introduced to vulgaris. ggj^e extent. 2. PENTSTEMON. Beard-tongue. Calyx 5-parted; coroUa tubular, expanding above, 2-lipped, the upper lip 2-lobed, the lower 3-lobed; stamens 4 fertile, and 1 sterile, which is usually bearded down one side; fruit a many-seeded cap- sule. Perennial herbs with opposite entire leaves and showy flowers. 1. P. gracilis, Nutt. Stem erect or slightly bent at the base, 6-15 in. high, minutely pubescent; stem leaves linear to lanceolate, sessile, more or less toothed; root leaves oblong to spatulate, obtuse, tapering into a petiole; corolla purple, open at the throat, the sterile filament bearded for half its length; flower cluster loose. Dry prairies, 2. P. aibidus, Nutt. Stems rather stout, 6-10 in. high, clustered, several from a branched erect rootstock, erect or reclining at the base, slightly pubescent; leaves oblong to linear; calyx, viscid-pubescent; c
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1915
