NORTH AMERICAN SPECIES OF CEANOTHUS. 109 



•i-r Leaves rather broad, not at all 3-nerved: fruit 5 to 

 6 mm. in diameter. 



7. C. SPINOSUS, Nutt. in Torrey & Gray, Fl. i. 267; Wat- 

 son, I. c. 337. — Middle and Southern California. 



8. 0. Palmeri, n. sp. Glabrous throughout, or a very 

 few hairs on the leaves and petioles: branches greenish, 

 becoming brown: leaves mostly on short spurs, slender-peti- 

 oled, about 40 mm. long, elliptical or ovate-oblong, rounded 

 at both ends, mucronate or emarginate, entire, thinner 

 than in the last: flowering branches ascending, naked or 

 few-leaved: inflorescence oblong, nearly simple: exocarp of 

 fruit rather fleshy. — Mountains of Southern California 

 (Palmer, 1875, No. 42). Intermediate between C. spinosus 

 and C. integerrimus. 



-i-^ -i--^ Leaves narrow, 3-nerved, the nerves often conceal- 

 ed by the revolute margins; fruit about 3 mm. in 

 diameter. 



9. C. Parryi, n. sp. Branches glabrate or sparingly 

 villous, strongly sulcate, more or less papillate : leaves nar- 

 rowly elliptical-oblong, obtuse, 15X30 ram. or less, gland- 

 ular-serrulate, glabrous above, the lower surface rusty-to- 

 mentose, at least along the veins: inflorescence oblong, 

 interrupted, terminating recurved - ascending slender, few- 

 leaved branches: flowers blue. — Known to me only from 

 specimens found in cultivation at Calistoga, Cal. (Farry, 

 1881, No. 33). 



-h- -)— Twigs not spinose nor rigid, very slightly angled 

 while young: leaves thinner, at least the largest 3- 

 nerved: inflorescence rather dense for the group; 

 fruit about 4 mm. in diameter. 



10. C. INTEGEEEIMUS, Hook. & Am. Bot. Beechey, 329; 

 Watson, I. c. 334, Index, 165. C. thyrsi fiorus, var. macro- 

 thyrsus, Torrey, Bot. Wilkes, 263! California to Arizona. 



