140 POLEMONIACE-E. GUia. 



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

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

 10 to 16 in each cell. 



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

 the base: stem (a long intemode) 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. Collomia nudicaulis, Hook. & Arn. Bot. Beech. 369. — Sandy 

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



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

 the calyx, and its throat more funnelform, 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. — Siphonetta, 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 Bocky Mountains of Colorado and Utah to Arizona, 



, S. California, and Washington Terr. 



G. floribunda, Gray. Taller and more slender, paniculately or corymbosely branched ; 

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

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

 Bot. Calif, i. 492. — San Diego Co., California, on the southern borders, and 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 : jD§rennials_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 branchlets. 

 — Leptodactylon, Hook. & Arn. 



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

 G. Watsoni, Gray. Eoughish-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 (6 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-pubescent, 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. piingens, Benth. Branches and mostly erectish or little-spreading leaves viscid- 

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



