GIIJA FAMILY 155 



Field note. — Navarretia setiloba is similar in appearance to the variable and wide-spread 

 N. atractyloides. A very narrow endemic and only slightly collected, it is, in consequence, but 

 little known. Two localities are all that can here be recorded: betw. Havilah and Kernville, 

 jr. Brandegee ; betw. Walker Basin and Hackberry Caiion, K. Brandegee. 



Refs. — Navarretia setiloba Gov., Contrib. U. S. Nat. Herb. 4:153, pi. 14 (1893), type loc. 

 divide between Kernville and Havilah, Kern Co., Coville 1049; Brand in Engler, Pflzr. 42^": 161 

 fig. 34 A-C (1907) ; Jepson, Man. 789 (1925). 



14. N. filicaulis Greene. Stems 1 to several from the base, very slender or wiry, 

 erect, 2 to 10 inches high; herbage minutely glandular-puberulent ; leaves filiform, 

 entire, % to l^/i inches long, or pinnately divided with 1 or 2 pairs of short-filiform 

 lobes near the base, or at the middle and remote; flowers in small heads, the heads 

 11/2 to 2^/2 lines broad, borne in a panicle on peduncles ^^ to 1 (or IV^) inches long ; 

 bracts palmately 3 or 5-cleft, the body ovate or orbicular, the central lobe prolonged 

 with subulate-spinose tips exceeding the flowers; calyx II/2 lines long, the teeth 

 unequal, 2 or 3 longer and about 1/2 length of calyx-tube; corolla dark purple, 21/2 

 lines long; stamens and style exserted, l^/^ times as long as corolla; stamens in- 

 serted on base of corolla-throat; style entire or nearly so; capsule thin-walled, 

 1-celled (or imperfectly 2-celled), 4-valved from the apex, 4 to 8-seeded. 



Dry hills, 500 to 2500 feet : Sierra Nevada foothills from Shasta Co. to Mariposa 

 Co. June-July. 



Locs. — Between Morley road sta. and Stevens ranch, ne. Shasta Co., M. S. Baker; Forest 

 Eanch, Butte Co., Seller 11,626; Grass Valley, Nevada Co., Beller 8111; Cape Horn, Placer Co., 

 K. Brandegee; Sweetwater Creek, Eldorado Co., K. Brandegee ; Gwin Mine, Calaveras Co., Jepson 

 2174a; Moccasin Creek (head of), Mariposa Co., Hoover 2461; Coulterville, Mariposa Co., Jepson 

 20,958. 



Refs. — Navarretia filicaulis Greene, Pitt. 1:134 (1887) ; Jepson, Man. 790 (1925). Gilxa 

 filicaulis Torr.; Gray, Proc. Am. Acad. 8:270 (1870), type from Cal., Jeffrey 1474. N. dnbia 

 Brand; Engler, Pflzr. 4=='':157 (1907), type from the Sierra Nevada, Jeffrey 1474. 



15. N. prolifera Greene. Main stem erect, simple, 1 to 3 inches high, bearing 

 a single terminal head, with 2 to several branches proliferous from beneath the pri- 

 mary head, these branches slender or filiform, naked, 1 to 3 inches long, each bear- 

 ing a single head; herbage glabrous, the bracts white-tomentulose; leaves 5 to 11 

 lines long, filiform and entire, or with 1, 2 or 3 remote pairs of short filiform lobes 

 1/2 to 1 line long; bracts palmately 3 to 5-cleft, the undivided portion white- 

 chartaceous; calyx about % as long as corolla, its teeth subulate, about twice as 

 long as the chartaceous calyx-tube, entire, villous or somewhat tomentulose ; corolla 

 purple or yellow, 3 to 5 lines long, its throat broadly expanded ; stamens very shortly 

 exserted, the filaments inserted on upper half of corolla-throat; style 3-cleft; cap- 

 sule 3-celled, 3-valved, about 3 to 5 seeds to each cell. 



Chaparral slopes, 2000 to 4000 feet : Sierra Nevada foothills from Plumas Co. 

 to Tulare Co. June. 



Geog. note. — The center of distribution of Navarretia prolifera, a rare species as at present 

 known, is in Eldorado Co. where it has been collected a number of times: Sly Park, Hall 11,381; 

 Fyffe, 12 mi. e. of Placerville, K. Brandegee ; Camino, K. Brandegee. Other localities for this 

 species are : Foster, Amador Co., Curran, and Cherry Gulch, Plumas Co., ace. JV. I. FoUett. Between 

 Amador Co. and Tulare Co. ("near Visalia") there is a broad gap in which the species is not knoivn 

 to occur. 



Habit note. — The initial flower head in Navarretia prolifera is terminal on the main axis 

 which varies in length. If, however, as in some individuals, the main axis becomes so extremely 

 shortened as to be called obsolescent, in such case no flower head is produced on the main axis, that 

 is to say no flower head is developed at the ground. This condition is in contrast to Navarretia 

 prostrata where the initial head is regularly sessile on the ground with the branches rotately pro- 

 liferous from beneath it. In Navarretia leucocephala and in N. mitracarpa the initial flower 

 head is not infrequently sessile or subsessile on the ground, but perhaps more commonly it is lifted 

 more or less on the main axial stem. 



Refs. — Navarretia prolifera Greene, Pitt. 1:135 (1887), type loc. "near Visalia" (un- 

 doubtedly in the Sierra Nevada foothills east), 2". ,7. Fatler.wn ; Jepson, Man. 790 (1925). ^V. pro- 

 lifera var. luiea Brand, Ann. Conserv. et Jard. Bot. Geneve, 15-16:338 (1913). 



