296 POLEMONIACEAE. 



pale blue, 8-10 mm. long, the tube shorter than the calyx, the limb small; 

 stamens included; ovules 8-12 in each cell. 

 Common in open places, very ill-smelling. 



Navarretia intertexta (Benth.) Hook. Annual; stems erect and simple 

 below or more commonly much branched and spreading, 5-15 cm. high, 

 pubescent; leaves all alternate, once or twice pinnately cleft into linear spines- 

 cent lobes, glabrous or nearly so; flowers crowded in head-like clusters, the 

 bracts and calyx-tube villous with white hairs; calyx-lobes more or less cleft 

 into spinose divisions; corolla tubular, funnelform, pale blue, equalling the 

 calyx-lobes, 5-6 mm. long; stamens exserted; ovules and seeds 3 or 4 in each cell; 

 seed-coats developing spiricles. 



Vancouver Island, British Columbia, to California, in dry open places. 



409. COLLOMIA. 



Herbs with alternate entire leaves; calyx not distended by the 

 capsule, obconical, the lobes not spine-tipped; corolla tubular 

 funnelform, with open throat and a spreading limb of short obtuse 

 lobes; stamens unequally inserted on the corolla tube; capsule 

 narrowed at the base; seeds usually 1 in each cell, mucilaginous 

 and forming spiricles when wetted. 



Leaves entire. 



Corolla salmon-colored, 2-3 cm. long. C. grandiflora. 



Corolla pink, 1 cm. long. C. linearis. 

 Leaves more or less dissected. 



Annual; leaves pinnate. C. heterophylla. 



Perennial; leaves palmate. C. debilis. 



Collomia grandiflora Dougl. Annual, erect, usually simple, 30-40 cm. 

 high, viscid-glandular below; leaves sessile, all alternate, lanceolate or linear, 

 the upper broader, all entire, 2-6 cm. long; flowers crowded in a terminal head- 

 like cluster; calyx obconical, the lobes broad, obtuse, shorter than the tube; 

 corolla salmon-color, narrowly funnelform, 15-25 mm. long; stamens unequally 

 inserted; ovules and seeds solitary in the cells, the seed-coats developing 

 spiricles when wetted. 



In dry open woods. 



Collomia linearis Nutt. Annual, erect, simple or branched above, 10-30 

 cm. high, pubescent throughout or glabrous below, glandular above; leaves 

 sessile, alternate, linear or lanceolate, acute, entire, 2-6 cm. long; flowers 

 crowded in head-like clusters; calyx-lobes triangular, acute, as long as the 

 obconic tube; corolla pink, 8-10 mm. long, slender-tubular, the lobes small; 

 stamens unequally inserted; ovules and seeds solitary in each cell; seed-coats 

 with spiricles. 



In low ground, not rare. 



Collomia heterophylla Hook. Annual, the stems usually decumbent, 

 10-20 cm. long; leaves all alternate, pinnatifid with the lobes entire or again 

 cleft, or the upper ones less lobed or even entire; flowers in a dense leafy- 

 bracted cyme; corolla purplish, 10-12 mm. long. 



In moist open woods, common. First found at Fort Vancouver by Douglas. 



Collomia debilis (Wats.) Greene. Perennial; stems loosely tufted; leaves 

 oblong, 3-7 -cleft or some entire; flowers crowded in a leafy head; corolla pur- 

 plish, 12-16 mm. long. 



Growing in loose rock at high altitudes in the Cascade Mountains. 



