204 BORAGE FAMILY 



the center between them, sometimes only 1 or 2 of the nutlets 

 maturing. 



A. riowers pink, tolue, or violet. 

 Surface of nutlets prickly. 



Nutlets spreading, prickly all over; below 6000 ft. alt. ..1. Cynoglossum. 



Nutlets erect 2. Lappula. 



Surface of nutlets not prickly 7. Mertensia. 



B. Plowers white. 



Annuals of moderate altitudes. 



Nutlets attached to a low-conical central base. 



Flowers nearly naked 3. Allocarya. 



Flowers leafy-bracted 4. Plagiobothrys. 



Nutlets attached to a slender columnar central axis 5. Cryptanthe. 



Perennial of high summits 6. Oreocarya. 



C. Plowers yellow. 



Perennial of high summits 6. Oreocarya. 



Annual of low altitudes 8. Amsinckia. 



1. CYNOGLOSSUM. Hound's Tongue. 

 1. C. occidentale Gray. Stems several, leafy, 9 to 18 in. 

 high, from a perennial base, rough-hairy. Leaves lanceolate 

 to ovate, 3 to 6 in. long, the upper closely sessile. Corolla 

 violet or blue, the tube longer than the calyx, with rounded 

 lobes. Nutlets nearly globular, J4 m - long, prickly. — Occa- 

 sional in pine woods at moderate altitudes. 



2. LAPPULA. 

 Ours leafy-stemmed perennials with bluish or rarely white 

 flowers. Corolla with closed throat. Nutlets armed with 

 prickles, forming burs. 



1. L. nervosa Greene. Stems erect, 1 or 2 ft. high, smooth 

 and usually glabrous above. Leaves oblong, the upper closely 

 sessile, 1 to 6 in. long, green but rough-hairy. Flowers loosely 

 panicled. Corolla blue with a white ring in throat, becoming 

 purplish, y% in. across, the tube surpassing the calyx. Nutlets 

 prickly all over the back as well as on the margins. (Echino- 

 spermum nervosum Kell.) — High altitudes: Rancheria Mt., 

 Glacier Point, Clouds Rest, etc. 



2. L. velutina Piper. Similar to no. 1, but the herbage 

 smooth and velvety with a close pu- 

 bescence and the flowers much 

 larger, the corolla about T /2 in. across; 



xi ^|'3W^ nutlets prickly on backs and mar- 

 gins. — Rather common in the Sierra 

 L. nervosa L. fioribunda Nevada at mo derate altitudes. 



3. L. fioribunda Greene. Herbage gray, the stems as well 



