. Synoptical flora of North America. Botany; Gamopetalae. 272 SCR0PHULARIACEJ3. Pentstemon. » » # Glabrous or merely puberulent: leaves all entire. •1— Corolla blue or violet, half inch long, slender-funnelform, moderately bilabiate: sterile filament lightly bearded. P. gracilentus, Gray. Stems slender from a lignescent base, a foot or more high, rather few-leaved, naked above, terminating in a loose and rather simple paniculate thyr- sus : leaves glabrous and green, lanceolate, or the upper linear and the lowest sometimes oblong, all narrowed at base: peduncles (and calyxj viscid-puberulent,
. Synoptical flora of North America. Botany; Gamopetalae. 272 SCR0PHULARIACEJ3. Pentstemon. » » # Glabrous or merely puberulent: leaves all entire. •1— Corolla blue or violet, half inch long, slender-funnelform, moderately bilabiate: sterile filament lightly bearded. P. gracilentus, Gray. Stems slender from a lignescent base, a foot or more high, rather few-leaved, naked above, terminating in a loose and rather simple paniculate thyr- sus : leaves glabrous and green, lanceolate, or the upper linear and the lowest sometimes oblong, all narrowed at base: peduncles (and calyxj viscid-puberulent, 2-5-flowered; the lower elongated: pedicels short: corolla-lobes only 2 lines long, moderately spreading. — Pacif. R. Kep. vi. 83, Proc. Am. Acad. vi. 75, & Bot. Calif. 1. 561. —Mountains, N. Cali- fornia and adjacent parts of Oregon and Nevada, at 5-8,000 feet. •h- -f— Corolla blue to purple, more ventricose-funnelform, short-bilabiate, two-thirds to an inch and a half long: sterile filament glabrous. (Species too nearly allied, mostly lignescent or rather shrubby at base.) ++ Inflorescence and calyx, glandular or viscid-pubescent: thjTsus open-paniculate. P. leetus, Gray. A foot or so high, cinereous-pubescent or puberulent, above glandular- pubescent : leaves lanceolate or linear-lanceolate and the lowest spatulate : sepals ovate or oblong, herbaceous: corolla an inch long,blue. — Jour. Bost. Nat. Hist. Soc. vii. 147, Proc. Am. Acad. 1. t., & Bot. Calif. I. c. — Open and dry grounds, California to the mountains above the Yosemite and apparently even to Siskiyou Co. P. Rdezli, Regel. Smaller, a span to a foot high, below glabrous or minutely puberu- lent . leaves all lanceolate or linear, or the lower oblanceolate: thyrsus either narrow or more dtffuse and compound, with the branches divergent: corolla smaller (from half to two-thirds inch long) and narrower, pale blue or violet. — Act. Hort. Petrop. ii. 326, & Gartenfl. 1872, t. 239; Gray, Bot
Size: 2374px × 1053px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorgra, bookcentury1800, bookdecade1870, booksubjectbotany
