ROSE FAMILY 435 



1. C. montanus Raf. Shrub 1-2 m. (rarely 3 m.) high; leaf-blades 2-5 cm. 

 long, coarsely serrate, with ovate teeth, pale and finely tomentose beneath; tube 

 of the hypanthium about 1 cm. long, pilose; limb campanulate or somewhat 

 turbinate, together with the sepals 6-7 mm. wide. C. parvifolius Nutt. Hills 

 and mountain sides: S.D. w Kans. N.M. Utah Mont. Plain Mont 

 My-Jl. 



2. C. flabellifolius Rydb. Low shrub, with gray smooth flaky bark; leaf- 

 blades 1-2 cm. long and nearly as broad, coarsely dentate above the middle, pale 

 beneath; tube of the hypanthium silky-strigose ; limb campanulate, puberulent 

 within, together with the sepals 5 mm. wide. Hills and canons: Utah N.M. 



3. C. argenteus Rydb. Shrub 2-3 m. high, with gray bark; leaf-blades 

 oblanceolate or obovate, 2-4 cm. long, obtuse or rarely rounded at the apex, 

 crenate above and at the middle, silvery-white beneath; teeth rounded-ovate, 

 obtuse; tube of the hypanthium 8-10 mm. long, silky; limb silky without, turbin- 

 ate, together with the sepals 6-7 mm. wide. Hills: Colo. Tex. N.M. Son.- 

 Submont. Je Jl. 



4. C. ledifolius Nutt. Aromatic tree, sometimes 12m. high, with red-brown, 

 furrowed bark; leaf -blades narrow r ly lanceolate, lance-elliptic, or oblanceolate, 

 entire, with revolute margins, villous-pubemlent when young, glabrate in age 

 above, pale or rufous, and tomentulose beneath, 1-3 cm. long, 5-10 cm. broad, 

 persistent; tube of the hypanthium 5-7 mm. long, white- villous-tomentose; limb 

 turbinate, together with the ovate sepals 5-6 mm. wide. Hills: Mont. Colo. 



s Calif. Wash. Submont. Mont* My-Jl. 



5. C. hypoleucus Rydb. Shrub or small tree, 1-5 m. high, with ashy bark; 

 leaf -blades linear-lanceolate or linear-elliptic, acute at both ends, 1-2 cm. long, 

 3-4 mm. wide, green above, at first villous, in age glabrate, densely white- villous- 

 tomentose beneath; tube of the hypanthium 4-5 mm., in fruit 5-6 mm. long, 

 white-villous; limb turbinate, together with the sepals 4 mm. broad. Hills: 

 Mont. Wyo. Ore. Son. Submont. Je-Jl. 



6. C. arizonicus M. E. Jones. Intricately branched, spinose shrub, with 

 ashy bark; young branches white villous-tomentose; leaves linear, 5-15 mm. 

 long, strongly revolute, villous-canescent on both sides, glabrate above, entire, 

 acute at both ends; flowers solitary; tube of the hypanthium in fruit 6 mm. long, 

 short-villous; achenes 6 mm. long. Canons: c Utah Ariz. Nev. 



C. arizonicus X ledifolius. Most resembling C. arizonicus in habit, but the leaves 

 broader and less revolute. 11.5 cm. long and 2-3 mm. wide. Utah. 



7. C. intricatus S. Wats. Intricately branched shrub, with fissured ashy 

 bark, more or less spinescent; young branches stiigose, soon glabrous; leaf- 

 blades linear, entire, strongly revolute on the margins; tube of the hypanthium 

 strigose, 4 mm. long, in fruit 6 mm. long; limb turbinate, together with the 

 sepals 3 mm. wide; achenes about 7 mm. long, hirsute. Canons and hills: Utah 



Nev. Ariz. 



33. RUB ACER Rydb. FLOWERING RASPBERRY, THIMBLEBERRY, 



SALMON BERRY. 



Unarmed shrubs, with more or less shreddy bark, more or less glandular- 

 hispid above. Leaves petioled, simple, digitately ribbed and lobed, with acute 

 or acuminate lobes and cordate at the base, resembling the leaves of certain 

 maples. Flowers showy, in small panicles. Sepals 5, ovate, with long slender 

 acuminations. Petals 5, pink or white. Stamens numerous, in several series; 

 filaments slender. Pistils numerous; styles glabrous, club-shaped; stigmas 

 slightly 2-lobed. Drupelets numerous, coherent with each other and separating 

 from the flat receptacle, capped with a dry, rather hard, finely and densely pubes- 

 cent cushion, the style inserted under its margin. 



1. R. parviflorum (Nutt.) Rydb. Stem erect, shrubby, 5-20 dm. high, 

 with flaky bark; leaf-blades reniform in outline, 5-20 cm. broad, 3-5-lobed, the 

 lobes triangular; sepals broadly ovate, abruptly caudate-acuminate, about 

 cm. long, densely glandular on the back; petals white, broadly oval, or ovate, 



