Polemonium. P0LEM0NIACE.2E. 149 



5-lobed : stamens inserted next the base : anthers oblong : ovules about 7 in each cell. — 

 Proc. Am. Acad. viii. 279 ; Watson, 1. c. fig. 16-18. — W. Nevada, on the banks of the 

 Truckee River, Watson. 



= = Texan and Mexican : pedicels erect or ascending, loosely and effusely paniculate : seeds 

 mucilaginous and spirilliferous when wetted, rather numerous. 



G. incisa, Benth. Merely puberulent : stems slender and weak, diffusely branched from 

 the base, a foot or two high, leafy : leaves thin ; the radical and lower cauline slender- 

 petioled, roundish-ovate or obovate, acutely and incisely toothed or lyrately cleft; the 

 upper lanceolate, sparsely laciniate ; uppermost linear, more entire, sessile, and gradually 

 reduced to subulate bracts : pedicels an inch or two long, rigid : corolla rotate, deeply 5- 

 cleft (white or blue, half inch or less in diameter), deeply 5-lobed; the lobes ovate: fila- 

 ments filiform : anthers oblong-oval. — DC. Prodr. ix. 312. G. Lindheimeriana, Scheele in 

 Linn. xxi. 763. — Shady banks and thickets, Texas. (Mex.) 



-1— -i— Eoot perennial or base of stems lignescent. 

 ++ Corolla (as far as known) rotate and blue: leaves rigid. 



G. rigidula, Benth. Glabrous or viscid-glandular : stems a span or so high, slender and 

 diffusely branched from a stout lignescent base: leaves mostly pinnately (or the upper- 

 most nearly palmately) parted or cleft into few or several lanceolate-linear or subulate 

 lobes : pedicels scattered, an inch or less long : corolla completely rotate (f to li inches in 

 diameter), 5-parted ; its lobes obovate : filaments filiform : anthers elongated-oblong : 

 ovules and seeds several in each cell. — DC. 1. c. ; Gray, Proc. Am. Acad. viii. 280. G. 

 gtandulosa, Scheele, 1. c, one of the viscid-glandular forms. (Corolla opening wide in after- 

 noon sunshine, closing at sunset, Lindheimer.) — Rocky plains and hills, Texas and New 

 Mexico. (Adjacent Mex.) 



Var. acerosa, Gray, 1. c. More dwarf, rigid, and suffruticose : branches very leafy : 

 the leaves all with slender-subulate or acerose and somewhat pungent divisions : pedicels 

 short : flower rather smaller : anthers barely oblong. — Northern New Mexico and borders 

 of Texas to Arizona. (Adjacent Mex.) 



G. CEespitosa, Gray. Depressed-cespitose. with a stout lignescent caudex : leaves nearly 

 all densely crowded on the very short tufted/ shoots, viscid-puberulent, spatulate or some- 

 what lanceolate, entire, thickish, half inch long or less : flowering shoots scape-like, 1 to 3 

 inches high, 1-5-flowered : flowers short-pedicelled : calyx narrow, 2 lines long, 5-cleft ; the 

 lobes slender-subulate : corolla and stamens not seen : ovules few in each cell. — Proc. Am. 

 Acad. xii. 80. — Rabbit Valley, Utah, on barren sandstone cliffs, at 7000 feet, L. F. Ward. 

 — Its proper plaoe in the genus quite uncertain, perhaps next G. subnuda. 

 ■k- ++ Corolla tubular-f unnelform : habit and foliage wholly of Polemonium conferium, var. melli- 

 tum, but stamens straight. 



G. Brandegei, Gray. Very viscid with glandular pubescence, pleasantly odoriferous, 

 cespitose : stems a span to near a foot high, simple : leaves all pinnate, elongated-linear in 

 circumscription ; the radical crowded and with short dilated and scarious sheathing petiole ; 

 the cauline scattered and similar : leaflets very small and numerous, 2 lines long, from oval 

 to oblong-linear, sessile, some simple, others 2-parted and so appearing verticillate : flowers 

 several in a short,and racemiform leafy thyrsus : corolla golden yellow, trumpet-shaped, an 

 inch or less long, more than twice the length of the oblong or cylindraceous obtusely 5- 

 lobed calyx; its lobes oval and short: the stamens included in its throat (not declined or 

 curved) : anthers roundish : ovules few in each cell. — Proc. Am. Acad. xi. 85. — San Juan 

 Gap, and Waggon-wheel Gap, on the Rio Grande, S. W. Colorado, on the face of high per- 

 pendicular cliffs, T. S. Brandegee. 



Var. Lambornii. Corolla lurid-yellowish or greenish. — Alpine region of Sierra 

 Blanca, S. Colorado, R. H. Lamborn, A. Gray. 



5. POLEMONIUM, Tourn. Grhek Valerian, Jacob's Ladder. 

 (Ancient name, from nole/xng, war, or more probably from the philosopher TloU- 

 pmr.) — Herbs, of the cooler parts of the northern hemisphere, and one in the 

 southern ; the leaflets or divisions of the pinnate leaves sessile and not serrate. 

 . Inflorescence racemiform, thyrsiform, or cymulose-panieulate ; the upper pedicels 

 ebracteate. Flowers blue or white, rarely purplish, usually showy, produced in 



