140 POLEMONIACE2E. Gilia. 



* * Entire-leaved, wholly glabrous, very dwarf : anthers sessile in the throat of the corolla, the 

 cuneatc lobes of which are somewhat undulate-toothed or 1-3-dentate at the broad apex: ovules 

 10 to 10 in each cell. 



G. nudicaulis, Gray. Very glabrous, an inch to a span high, at length branching from 

 the base: stem (a long internode) leafless from the cotyledons up to the inflorescence, 

 which is a close head or glomerule subtended by an involucre of several ovate-lanceolate 

 or lanceolate foliaceous bracts : corolla white, pink, or yellow ; the tube 3 or 4 lines long 

 and thrice the length of the calyx, rather longer than the lobes. Proc. Am. Acad. viii. 

 266; & Bot. Calif, i. 492. Collontia nudicaulis, Hook. & Am. Bot. Beech. 369. Sandy 

 plains, in spring, interior of Oregon and Nevada to Colorado. 



4. SIPHONELLA, Gray. Like Leptosiphon, but tube of corolla not surpassing 

 the calyx, and its throat more fiumelform, ovules only 2 or 4 in each cell, and 

 flowers less glomerate : perennials, more or less woody or suffrutescent at base, 

 cinereous-puberulent or the 3 7 -parted leaves glabrate : calyx cylindraceous, firm- 

 herbaceous, soon 5-parted ; the abrupt margins of the lanceolate-subulate lobes 

 and the sinuses not at all scarious : corolla white, with yellow throat, obovate 

 lobes (3 or 4 lines long), and tube externally puberulent: filaments short, slightly 

 exserted : anthers short. Siphonella, Nutt. herb. 



G. Nuttallii, Gray. Stems or branches a span to a foot high, rather simple, terminated 

 by a dense leafy cluster of flowers: divisions of the leaves narrowly linear (6 to 9 lines 

 long), mucronate : ovules a pair in each cell. Proc. Am. Acad. viii. 267; Watson, Bot. 

 King, 265, t. 26. Western side of the Rocky Mountains of Colorado and Utah to Arizona, 

 S. California, and Washington Terr. 



G. floriblinda, Gray. Taller and more slender, paniculately or corymbosely branched : 

 the copious Mowers in rather loose cymose clusters, often pedicelled . divisions of the leaves 

 very slender, almost acicular or filiform : ovules 4 in each cell. Proc. Am. Acad. 1. c., & 

 Bot. Calif, i. 492. San Diego Co., California, on the southern borders, aud east to Arizona, 

 Coulter, Palmer, &c. Upper leaves rarely alternate. 



5. LEPTODACTYLON, Benth. Corolla salverform, with tube more or less ex- 

 ceeding the calyx ; the throat somewhat funnelform-dilated : filaments short, 

 inserted in or below the throat : anthers short, included : ovules numerous in each 

 cell : seeds with a close coat, developing neither spiricles nor mucilage when 

 wetted : perennials or undershrubs, commonly tufted, very leafy : leaves all alter- 

 nate, except in one species, and much fascicled in the axils, palmately 3-7 -parted, 

 acerose or subulate, rigid and pungent: flowers showy (rose, lilac, or white), soli- 

 tary and sessile or few in a cluster at the summit of short branches or bratichlets. 

 Leptpdactylon, Hook. & Arn. 



* * Leaves all opposite : stems or branches almost herbaceous from a woody base. 



G. Watsoni, Gray. Roughish-puberulent and glandular, or at length smoothish : slender 

 branches a span high from the woody caudex : leaves not much fascicled, widely spread- 

 ing ; the slender acerose divisions ((i to 8 lines long) often shorter than the internodes; 

 calyx-lobes barely half the length of the tube : corolla nearly white (with purplish throat) ; 

 its tube and lobes each half inch long: anthers at the orifice: ovules 10 or more in each 

 cell. Proc. Am. Acad. 1. c. ; Watson, Bot. King, 265, t. 26. Rocky hills, Utah, Watson. 



* * Leaves all alternate, or sometimes the lower opposite: stems decidedly woody. 



G. Californica, Benth. Branches and very crowded soon widely spreading leaves 

 tomentose-pubesceut, or rather villous when young: corolla (rose or lilac, its ample limb 

 an inch and a half in diameter) with broadly wedge-obovate lobes, their margin often 

 minutely erose : anthers linear-oblong, included in the upper part of the tube : ovules 20 or 

 more in each cell. DC. Prodr. 1. c. Leptodactylon Californicum, Hook. Arn. Bot. Beech. 

 349, t. 89 ; Hook. Bot. Mag. t. 4872. Dry hills, W. California, south to San Bernardino Co. 



G. pungens, Benth. Branches and mostly erectish or little-spreading leaves viscid- 

 pubescent, puberulent, or glabrate: corolla rose, white, or "yellow" (Dougl.), the lobes 



