. Contributions from the Botanical Laboratory, vol. 3. Botany; Botany. 1^2 Genus Pentstemon. bracts: inflorescence secund, mostly strictly so, the lower peduncles about 4-flowered, shorter and fewer- flowered upward: sepals ovate, acuminate, scarious- margined, about as long as the corolla tube proper: corolla blue tubular-funnel form, about 15 mm. long, not strongly bilabiate, the lobes moderately spreading, sparsely bearded on the lower lip: sterile filament short, with a close, short, yellow pubescence. Colorado; Mancos, Baker, Earle & Tracy, 1898, Hotchkiss, 1892, and Durango, 1898, Cr
. Contributions from the Botanical Laboratory, vol. 3. Botany; Botany. 1^2 Genus Pentstemon. bracts: inflorescence secund, mostly strictly so, the lower peduncles about 4-flowered, shorter and fewer- flowered upward: sepals ovate, acuminate, scarious- margined, about as long as the corolla tube proper: corolla blue tubular-funnel form, about 15 mm. long, not strongly bilabiate, the lobes moderately spreading, sparsely bearded on the lower lip: sterile filament short, with a close, short, yellow pubescence. Colorado; Mancos, Baker, Earle & Tracy, 1898, Hotchkiss, 1892, and Durango, 1898, Crandall. Leaves obtuse, mostly alternate. 125. P. Gairdneri Hook. Fl. Bor. Am. 2: 99 (1840). A. Gray, in Proc. Am. Acad. 6: 65. Scrubby, stems 2 to 3 dm. high, rigid, cinereous- puberulent: leaves alternate, linear-spatulate, the upper linear, sessile, coriaceous, entire, obtuse, 12 mm. to cm. long: thyrsus short and simple; peduncles usually one-flowered; pedicels alternate: sepals ob- long-ovate to ovate-lanceolate, acute, glandular-viscid, 4 to 7 mm. long: corolla purple, 12 to 19 mm. long, narrowly funnelform, obscurely bilabiate, the lobes rounded: sterile filament lightly bearded: capsule ovoid, equaling the calyx. Dry interior of Washington, Oregon and W. Nevada. Var. , Syn. Fl. Suppl. 441 (1886). P. Oreganus {A. Gray) Howell, Fl. N. W. Am. 515 (190J). Strict: leaves narrow, even the bracteal ones and most of the peduncles opposite. Mountains of eastern Oregon, Cusick, Howell. Var. hians Piper, in Bull. Torr. Bot. CI. 27: 396 (IQOO). Leaves rather numerous, alternate, linear or linear-spatulate, sessile, acutish, revolute, more or less curved, ascending, 2-3 cm. long, 2 mm. wide: flowers Genns Pentstemon. 183 10-20, racemose or somewhat paniculate, rather strict: bracts lanceolate, acuminate, about i cm. long: calyx I cm. long, the lobes ovate, acuminate, sub-equal, free quite to the base, not equaling the corolla tube: corolla red, minutely glandular, 2
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