(ilLIA FAMIIA-. 423 



Sinuses of the calyx iu age distended into a revolute lobe . 2. Collomia. 

 Sinuses ol the calyx not distended. 



Leaves alternate in ours except one species, entire or pinnately 

 toothed, lobed or divided 3. Gilia. 



Leaves opposite,, palmately divided in ours, rarely entire 4. Linanthus. 



1. POLEMONIUM L. Jacob's Ladder. 

 Perennials. Leaves alternate, pinnate, the leaflets sessile. Plow- 

 ers showy, blue or white, in racemes, thyrses or panicles. Calyx 

 herbaceous throughout, not scarious below the sinuses, accrescent. 

 Corolla from funnelform to nearly rotate. Filaments more or less 

 declined and hairy at base. Seeds few or several in each cell. 

 (Greek name used by Dioscorides, from polemos, war, the application 

 not obvious. ) 



1. P. earneum Gray. Lightly pubescent, 1 to 2 ft. high, the 

 stems lax or diffusely branching; leaflets thin, 7 to 17, ovate to ovate- 

 lanceolate, 1 to IJ in. long, all but the terminal distinct, these some- 

 times confluent; flowers corymbose-paniculate on rather slender pedi- 

 cels; calyx about 4 lines long, accrescent in age and twice as long; 

 corolla broadly funnelform, salmon-color to purple, 8 to 12 lines 

 long, the limb nearly as broad when expanded; lobes obovate and 

 either acute or obtuse; stamens and style included; seeds 3 or 4 in 

 each cell. 



Rare but handsome species of mountain woods: Pilarcitos, San 

 Mateo Co.; Marin Co.; northward to Siskiyou Co., where first 

 collected by Greene. Apr.-May. 



•2. COLLOMIA Nutt. 

 Herbs, oui-s annual, with alternate leaves. Flowers in ours in 

 dense clusters with foliaceous bracts. Calyx turbinate, in age ob- 

 pyramidal or cup-shaped, its teeth or lobes equal, entire, erect, the 

 sinuses in age distended into a recurved lobe. Corolla narrowly 

 funnelform or salverform, salmon-yellow, reddish, purple, or white. 

 Stamens unequal and unequallj' inserted on the tube of the corolla, 

 mostly straight. Seed 1 in each cell, the seed-coat developing spiral 

 threads when wet. Capsule oval to obovoid. (Greek kolla. glue, on 

 account of the mucilaginous seeds.) 



Corolla narrowly funnelform, pale salmon-color; leaves entire 



1. C. grandijiora. 

 Corolla salverform, red-purple; leaves more or less bipinnatifid or simply 

 toothed or entire . . . 2. C. heterophylla. 



1. C. grandiflora Ddugl. Erect, simple, f to 2 ft. high; leaves 

 alternate, linear or oblong-lanceolate, entire, sessile; flowers crowded 

 in head-like clusters at the ends of the stems and leafy-bracted, or 

 some often borne below, either singly in the axils or in small clusters 

 on short branchlets; calyx-tube obconical, its lobes broad and obtuse; 

 corolla pale salmon-color, narrowly funnelform, 1 in. long, its tube 

 thrice as long as the calyx, its lobes broadly oblong; valves of the 

 capsule after dehiscence with the sides strongly reflexed. 



