(ill. I A FAMILY. 



427 



8. G. densifolia Benth. Perennial; stems numerous from a 

 tufted woody base , 8 to 14 in. high; herbage lanate-tomentose when 

 young, glabrate in age; leaves narrowly linear and entire or with 1 or 

 2 pairs of short-subulate spinulose lobes at the middle or toward the 

 base; flower-clusters terminal, dense, the foliaeeous bracts and the 

 calyces implexed-woolly; four of the calyx-teeth short, the fifth a> 

 long as the tube; corolla deep blue, the tube 6 lines long, 2 or 3 times 

 the length of the calyx, its lobes oblong, about 2 lines long. 



Mountains of Santa Clara Co. and southward to Southern Cali- 

 fornia. June-Sept. 



!>. G. intertexta Steud. Stems simple or often branching from 

 the base, 2 or 3 to 7 in. high, white-puberulent but not glandular; 

 leaves bipinnatifid and the segments spinescent-tipped; body of bracts 

 and exterior of calyx-tube densely white-villous or woolly-tomentose: 

 corolla white or pale blue, equaled by the calyx-teeth. 



Valleys and low hills: North Coast Ranges (Humboldt Co., Healds- 

 burg, Conn Valley, Calistoga, etc.); Sacramento and San Joaquin 

 Vallej^s. May-June. 



10. G. leucocephala Benth. Stems simple or branching from 

 the base, 3 to 5 in. high, whitish-puberulent; leaves pinnately parted, 

 the divisions filiform and entire, sparingly toothed, the rachis broad 

 and often prolonged into an elongated terminal entire division: 

 flowers clear white, 4 lines long; calyx with a tuft of hairs at each 

 sinus, the teeth mostly entire and nearly equal. 



Low places in fields and beds of pools where water lias stood in 

 winter or early spring, the plants often growing very densely: Sac- 

 ramento Valley; Vacaville; Winters; first collected on plains near 

 the Feather River by Hartweg. May-June. 



11. G. prostrata Gray. Plants glabrous; primary flower-cluster 

 sessile, the branches radiating from beneath it, simple or once forked, 

 terminating in the head-like clusters; leaves pinnatifid, the rachis 

 broad and slender, the segments remote; heads dense, surrounded by 

 foliaeeous bracts 1 to 1£ in. long; bractlets not exceeding the white 

 flowers; corolla-lobes oblong; calyx with unequal teeth, the two 

 longer tridentate; calyx-teeth in fruit contracted over the 2-celled 

 capsule; seeds 9 to 11, small; embryo short-cylindrical, the cotyledon- 

 about equaling the caulicle in length. 



Plains of central California southward to Los Angeles. 



12. G. cotulaefolia Steud. Erect, 7 to 13 in. high, finely pubes- 

 cent; leaves bipinnatifid, the segments innocuous; bracts and calyx 

 slightly hairy or glabrous at the base; flowers creamy-white, com- 

 monly 4-merous; calyx-lobes varying from nearly equal and entire to 

 unequal, with the longer variously toothed; capsule 1-celled, 4-valved. 

 dehiscing from the base, 2-seeded; embryo with entire cotyledons. 



Valley fields: Newark, Alameda Co.; North Coast Ranges; Sac- 

 ramento Valley. Scentless acc. to Greene. Navarretia nigella?formis 

 Greene, with multifid bracts, is said by Mrs. K. Brandegee to be a 

 yellow-flowered form of this species; it is found at Antioch. 



