NORTH AMERICAN SPECIES OF CEANOTHUS. Ill 



16. C. DiVARiCATUS, Nutt. ill ToiT. ct Gray Fl. i. 266, 686; 

 Watson, I. c. 336 in part. — California and Lower Cali- 

 fornia. 



VAR. GEOSSE - SERRATUS, Torrey, Pac. R. R. Rep. iv. 75. 

 — California. 



17. C. CORDULATUS, Kellogg, Proc. Cal. Acad. ii. 124, f. 

 39; Watson, I. c. 337. — Mountains of California. 



•»--)- -K-!- Twigs slender, usually slightly if at all glaucous: 

 spines slender and sharp: leaves rather narrow for 

 the group: fruit about 4 mm. in diameter. 



18. C. Fendleei, Gray,Pl. Fendler29; Watson, I. c. 337. 

 Mountains of Colorado, New Mexico and Arizona. 



VAB. viRiDis Gray, in Herb. — Arizona (Lemmon. 

 Greene). 



% % %. Flowers deep blue (except sometimes in the first) , 

 in rather compact nearly simple corymbose or ob- 

 long clusters, on leafless or nearly leafless (some- 

 times abbreviated), usually scaly peduncles: twigs 

 terete, mostly spineless, and not very rigid. — Pa- 

 cific species. 



"^ Leaves medium-sized, all or nearly all 3-nerved: 

 twigs rather more rigid in forms of the first two 

 than elsewhere in this group: fruit about 4 mm. in 

 diameter. 



19. C. SOREDIATUS, Hook & Arn. Bot. Beechey, 328; 

 Watson, I. c. 336. — Coast Range of Southern California, 

 extending into Lower California. 



20. C. HiRSUTUS, Nutt. in Torr. & Gray, Fl. i. 266; Wat- 

 son, I. c. 336. C. diversifolius Kellogg, Proc. Cal. Acad, 

 i. 58, 65. — Mountains of Southwestern California. 



VAR. ? GLABER, Watson, I. c. 336. — East Humboldt 

 mountains, Arizona. (Watson, No. 212.) 



