206 BORAGE FAMILY 



Surface of nutlets smooth and shining. 



Nutlets 1 or 2, narrow, slenderly pointed 1. C. Haccida. 



Nutlets 4, ovate, merely acute. 



Groove near edge of nutlet 2. C. aflinis. 



Groove in middle of nutlet 3. C. torreyana. 



Surface of nutlets rough. 



Calyx much longer than the nutlets 4. C. ambigua. 



Calyx little longer than the nutlets 5. C. muriculata. 



1. C. flaccida Greene. Stems y 2 to 2 ft. high, grayish pu- 

 bescent. Leaves linear, 1 in. or less long. Flowers about 

 Y$ in. across, in coiled spikes. Calyx bearded at base. Nut- 

 lets smooth, ovate-lanceolate, nearly cylindric, with beak-like 

 summit, the groove enlarged at base but not forked. (Kry- 

 nitzkia oxycarya Gray.) — Mariposa Grove, Wawona Meadows, 

 Yosemite Valley, thence to the foothills. 



2. C. affinis Greene. Similar, but the leaves wider (ob- 

 long) and often 2 in. long. Nutlets attached in pairs, smooth, 

 ovate, merely acute, the slender groove nearer one edge than 

 the other, not enlarged or forked at base. (C. geminata 

 Greene.) — A common species in the Yellow Pine Belt. 



3. C. torreyana Greene. Similar to no. 1 and with similarly 

 narrow leaves. Calyx bristly. Nutlets ovate, smooth and 

 shining, merely acute, the groove in the middle and forked 

 at base. — Common at moderate altitudes. 



4. C. ambigua Greene. Habit, foliage, and flowers as in 

 no. 1. Nutlets gray, rough with minute scattered knobs, ovate, 

 pointed, the edges rounded, the groove narrowly forked at 

 base, about one-third the length of the calyx. — Plentiful in the 

 Yosemite Valley, etc. 



5. C. muriculata Gray. A coarse rough-hairy annual, 1 or 

 2 ft. high. Leaves numerous, linear, 1 or 2 in. long. Nutlets 

 very rough, ovate, with sharp edges, the groove and its fork 

 mostly closed, becoming nearly as long as the bristly calyx. — 

 This, the most robust and bristly of all our species, grows on 

 warm hillsides up to 5500 ft. alt. 



6. OREOCARYA. 



1. O. nubigena Greene. Stems numerous, erect, 1 ft. or 

 less high, from a perennial base, the whole plant bristly. 

 Leaves oblanceolate, 1 in. or so long. Flowers in dense 

 clusters. Corolla tubular, with spreading lobes (salverform), 

 % in. across. Nutlets ovate, smooth or slightly wrinkled. 



The type locality of this rare plant is the summit of Clouds 

 Rest, where it was collected in 1889 by V. K. Chesnut and 

 E. R. Drew. It has been found also on a few of the other 



