264 PHANEROGAMOUS PLANTS. 



5. Ceanothus velutinus, Bough 



Ceanothus velutinus, Dougl. in Hook. Fl. Bor.-Amer. 1, p. 125, t. 45 ; Torr. & Gray, 



Fl. 1, p. 265. 

 C. Icevigatus, Hook. Fl. Bor.-Amer. 1. c. 



Hab. Borders of prairies and banks of rivers ; Puget Sound, and 

 interior of Washington Territory; also on the Willamette River, 

 Oregon. — Plant 4 to 8 feet high. The leaves are almost sempervirent; 

 when old they nearly lose the copious tomentum of the under surface, 

 so as to be nearly glabrous. Sometimes, indeed, the younger leaves 

 are smooth underneath. The glabrous state of the plant is C. Icevigatus, 

 Hook., and C. velutinus var. Icevigatus, Torr. & Gray, Fl. 1, p. 686. 



6. Ceanothus Hirsutus, Nutt. 



Ceanothus hirsutus, Nutt. in Torr. & Gray, Fl. 1, p. 266. 



C. oliganthus, Nutt. 1. c. ; Torr. & Gray, 1. c. 



C. sorediatus, Hook. & Am. Bot. Beechey, p. 329 ; Torr. & Gray, 1. c. 



C. Lobbianus, Hook. Bot. Mag. t. 4811. 



C. diversifolius, Kellogg in Proceed. Calif. Acad. Nat. Sci. t. 58. 



Hab. Upper tributaries of the Sacramento, California. — A shrub 

 with gray, villous^ivaricate branches, usually about two feet high. 

 Leaves elliptical, or sometimes obovate, about three-fourths of an inch 

 long, coriaceous, minutely pubescent above, villous and canescent 

 underneath, glandularly denticulate with salient teeth. Panicles 

 terminating small and short leafy branches. Flowers bright blue. 

 Fruit as large as in C, Americamis, with a small tubercle at the 

 summit of each angle. We unite the four species enumerated above, 

 as they seem to pass insensibly into each other. 



7. Ceanothus incanus, Torr. & Qray. 



Hab. Mountains of the Upper Sacramento, California. — In our 

 specimens the branches are more slender and the leaves narrower than 

 in Douglas's plant, as well as more sparingly toothed, but there is no 

 essential difference. 



