114 RHAMNACEiE. • ceanothus. 



season's growth. 



C. sanguineus Pursh Fl. 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. Fl. i, 125, t. 45, (Mountain Balm). 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. Isevigatus T. & G. Fl. i, 686. 

 (Smooth Mountain Balm). A large shrub "S- -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 leaves: flowers white 

 In forests, Vancouver Island to Northern California, near the coast. 



C. Calif ornicus Kell. Proc. Cal. Acad. i. 55. C inte.derrimus of re- 

 cent authors not of H & A. Bot. Beech. 329: ' C. thyrsiflnrus cor', macro- 

 thyrsus lovr. Bot. Wilkes 263. A slender branching shrub, 2—10 feet 

 high, young branches more or less angled and pubescent: leaves thin 

 oblong to broaoly 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 ong: styles shorter than the stamens, united to near 

 the^ummit On dry open hillsides, from the Columbia river to Call - 



C. thyrsiflorus Esch. Mem. St. Petersb. Acad, x 285 \n erect 

 shrub or small.treeC I5.ee, high with strongly angled br^chetleY^ 

 ; !ll — I; ' «;• "»<:!>' dentate, 1 2 inches long, on shorl petioles deciduou? 

 flowers blue iu dense subcompound racemes, tenninati ? ng thfusuX 



nearTeco^t. S ° me "'' PedUDCle ' Puget Sound & cLSES? 



+ -*- Ered shrubs, the branches usually rigid and sninosp- 

 leaves rather small: Mowers in simple raceme! or ciustera ' 



