114 RHAMNACEZ#. CEANOTHUS. 
season’s growth. 
C. sanguineus Pursh FI. 167. A stout shrub 4-12 feet high with 
terete reddish branches: leaves thin, 1-4 inches long, ovate to elliptical, 
finely serrate, pubescent beneath, on slender petioles 6-15 lines long, decid- 
uous: whole inflorescence white, 1-4 inches long, pubescent, the numerous 
flowers fascicled on the sides and at the ends of the short lateral branches: 
style shorter than the stamens, 3-lobed. Common on rocky hillsides, Brit. 
Columbia to northern California and Montana. | 
++ Inflorescence on lateral shoots of the previous year’s growth or 
terminal on leafy shoots of the present season’s growth. : 
C. velutinus Dougl. Hook. FI. i, 125, t. 45, (Mounrain Baim). A. 
smooth shrub 2—6 feet high, with terete green branches, cespitose, often 
decumbent at base, the branches somewhat pendulous; leaves orbicu- 
lar-elliptical or elliptical-ovate, obtuse, subcordate, glandularly crenate 
above, serrulate, coriaceous, glabrous and shining above, (as if var \ished 
and exuding a fragrant balsamic substance).velvety-canescent and strongly 
3-ribbed beneath, 2—3 inches long, on petioles, 6—8 lines long, persis- 
tent; panicles axillary, thrice compound, elongated, on rather long 
peduncles; flowers white; styles as long or longer than the stamens. 
Common in mountainous districts, Brit. Columbia to eastern Oregon 
and the Rocky Mountains. 
C. laevigatus. C. velutinus var. levigatus T. & G. FI. i, 686. 
(SmootH Mountain Baum). A large shrub 8—15 feet high with smooth 
terete green erect branches: leaves orbicular to elliptical, 2—4 inches 
long, subcordate, finely glandular-serrate, dark green and shining 
above the whole upper surface glandular and exuding a balsamic fra- 
grant substance, paler but smooth and prominently 3-ribbed beneath, 
thick-coriaceous, persistent: panicles axillary, compound, rather small, 
the peduncles but little if any longer than the leayes: flowers white. 
In forests, Vancouver Island to Northern California, near the coast. 
C. Californicus Kell. Proc. Cal. Acad. i. 55. C. inteaerrimus of re- — 
cent authors not of H. & A. Bot. Beech. 329: (. thyrsiflorus var. macro- 
thyrsus Torr. Bot. Wilkes 263. "A slender branching shrub, 2—10 feet 
high, young branches more or less angled and pubescent: leaves thin, 
oblong to broaaly lanceolate, 1—3 inches long, more or less serrulate 
toward the apex, pubescent with minute appressed hairs, on slender 
petioles 2—6 lines long, deciduous: flowers blue to white, fascicled on 
terminal and axillary peduncles from wood of the present season's 
growth; bracts ovate, shortly acuminate, 1—2 lines long: pedicels 
slender, 4—6 lines long: styles shorter than the stamens, united to near 
ihe summit. On dry open hillsides, from the Columbia river to Cali- 
ornia. 
C. thyrsiflorus Esch. Mem. St. Petersb. Acad. x 
shrub or small tree 6—15 feet high with strongly angled oe kee ieee 
lanceolate, finely dentate, i—2 inches long, on short petioles, deciduous: 
mihi roe an eer a4 Sag tags racemes, terminating ‘the usually 
ated and somewhat lea i 
a ee y peduncle. Puget Sound to California, 
+ + Erect shrubs, the branches usually rigid and spinose: 
leaves rather small: flowers in simple racemes or clusters. 
C. divaricatus Nutt. T. & G. Fl. i, 266. A stra 
terete, often pruinose branches: leaves chiang angie ners Pe 
lines long, rounded at base, lucid, somewhat obtuse minutely and 
glandularly serrulate, pubescent beneath, somewhat coriaceous on 
petioles about 2 lines long, persistent: flowers blue to white ‘in sub- 
simple often elongated racemes 1—4 inches long. Southern Idaho to 
