252 POLEMONIACE^E. (POLEMONIUM FAMILY.) 



18. G. pinnatiflda, Nutt. Stem simple or loosely branching, a span to 

 2 feet high : inflorescence open-paniculate, often compound : leaves pinnately 

 parted into linear or narrowly oblong lobes; these sometimes again 1 or 2-lobed : 

 stamens conspicuously exserted: corolla strictly salverform, 2 or 3 lines long, 

 pale blue or violet, or the narrow tube white. — Proc. Am. Acad. viii. 276. 

 In the mountains from S. Wyoming through Colorado to New Mexico. 



-t- ■*- +- Flowers scattered or somewhat crowded, occasionally yellow : ovules one 



to many in each cell. 



** Corolla very small (2 lines or less), salverform, white: leaves filiform, entire, 



or sometimes S-parted : ovules solitary in the cells : not viscid-glandular. 



19. G. minutiflora, Benth. Glabrous, or minutely glandular-puberulent 

 above : stem erect, a foot or two high, with many virgate and rigid slender 

 branches : upper leaves all reduced to minute subulate appressed bracts ; the 

 lower longer and some of them 3-parted : flowers terminating and also sparsely 

 spicately disposed along the branchlets, 2 lines long. — Wyoming (on the Upper 

 Platte) and Idaho. 



20. G. tenerrima, Gray. Minutely and sparsely glandular, low, effusely 

 much branched; branches filiform: leaves entire : flowers loosely panicled, on 

 slender divergent pedicels, minute. — Proc. Am. Acad. viii. 277. Bear River 

 Valley, Utah. 



** ++ Corolla larger (3 to 12 lines), funnelform, purplish or yellow : leaves once or 

 twice pinnately divided: ovules few or numerous in the cells: viscid-glandular. 



21. G. inconspieua, Dougl. A span to a foot or more high, usually with 

 slight woolly pubescence when young, and viscid-glandular, branching from the 

 base : leaves mostly pinnatifld or pinnately -parted, or the lowest bipinnatifld, with 

 short mucronate-cuspidate lobes ; the uppermost becoming small, subulate and 

 entire : flowers either somewhat crowded and subsessile or at length loosely panicled 

 and some of them slender-pedicelled : corolla violet or purplish (3 to 5 lines 

 long), narrowly funnelform. — From Wyoming to Texas and westward. 



22. G. Brandegei, Gray. Very viscid with glandular pubescence, pleas- 

 antly odoriferous, cespitose : stems a span to near a foot high, simple : leaves 

 all pinnate, elongated-linear in outline, the radical crowded, the cauline scat- 

 tered; leaflets very small and numerous, from oval to oblong-linear, 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. — Proc. Am. Acad. xi. 85. On the face of cliffs in S. W. Colorado, 

 Brandegee. 



Var. Lambomii, Gray. Corolla lurid-yellowish or greenish. — Synopt. 

 Fl. ii. 149. Alpine region of Sierra Blanca, S. Colorado. 



3. POLEMOWIUM, Tourn. Greek Valerian. Jacob's 



Ladder. 



Inflorescence racemiform, thyrsiform, or cymulose-paniculate : flowers blue 

 or white, rarely purplish, usually showy. 



* Corolla narrowly funnelform; its tube exceeding the calyx and longer than the 

 limb : filaments naked or nearly so and not dilated at base : leaflets very small 



