438 ROSACEAE 



8. R. spectabilis Pursh. Stems perennial, shrubby, 2-5 m. high, unarmed 

 when young or with small straight prickles; leaves usually 3-foholate; leaflets 

 thin, incisedly double-serrate; terminal leaflet 4-10 cm. long, often deltoid- or 

 rhombic-ovate; lateral leaflets obliquelj^ ovate, subsessile; flowers mostly soli- 

 tary; petals reddish purple or rose-colored, elliptic, 15-20 mm. long; fruit large, 

 ovoid, 15-20 mm. long, red or yellow. Salmon-berry. Along streams: s 

 Alaska — Ida.— Calif. Sub7nont. Ap-Je. 



9. R. occidentalis L. Stems biennial, 1-3 m. long, recurved, at length 

 rooting at the tips, usually purplish or bluish; leaves of the shoots 3-foliolate, or 

 some of them pedatcly 5-foliolate; median leaflet ovate to broadly cordate, some- 

 times more or less lobed, doublj^ serrate, acimiinate at the apex, rounded to 

 cordate at the base, 5-8 cm. long, white-tomentose beneath; lateral leaflets in 

 the 5-foliolate leaves similar, but narrower; outer leaflets subsessile, often oblique 

 and sometimes 2-lobed; floral branches green, their leaves 3-foliolate; leaflets 

 similar, but rarely cordate at the base; corymbs few-flowered; sepals ovate-lance- 

 olate, long-acuminate, 7-8 mm. long; petals white, elliptic, shorter than the 

 sepals; fruit dark bluish purple, with a bloom, hemispheric. Black Rasp- 

 berry, Black-cap. Copses: N.B.- — Que. — Ga. — Colo. — Minn. Plain — Sub- 

 mont. Je-Jl. 



10. R. leucodermis Dougl. Stems biennial, erect, 1-2 m. high, yellowish 

 and glaucous, armed with stout, flat, recurved prickles; leaves of the shoots 

 usually pedately 5-foliolate; terminal leaflet broadly ovate, 6-10 cm. long, acute, 

 double-serrate, rounded or subcordate at the base; lateral leaflets similar, but 

 narrower and merely romided at the base; lower leaflets usually subsessile; floral 

 branches usualh' with yellowish bark, their leaves 3-foliolate and leaflets smaller; 

 corymbs usually few-flowered; pedicels tomentose, prickly, but not glandular; 

 sepals lanceolate, long-acuminate, in fruit merely spreading; petals white, oblong 

 or eUiptic, shorter than the sepals; fruit hemispheric, dark reddish purple or 

 nearly black, with a bloom. Purple Raspberry. Copses: B.C.— Mont. — 

 Utah— Calif. Submovt. Jc-Jl. 



R. leucodermis X melanolasius. Resembling R. leucodermis in liabit and in the 

 prickly stem, but the upper part of the branches, the pedimcles. pedicels, and petioles 

 more or less glandular-hispid. B.C.- — -Mont. 



11. R. melanotrachys Focke. Stems biennial, erect, 1-2 m. high, purplish, 

 glabrous, short-bristly; leaves pinnately ternate; leaflets coarsely and somewhat 

 doubly serrate, acuminate, green and glabrous above, densely white-tomentose 

 beneath; inflorescence short, almost corymbiform; pedicels villous, not at all 

 glandular, armed with purple, cui-ved, strong bristles or weak prickles; hypan- 

 thium and calyx tinged with purple, bristly and villous, not glandular; petals 

 white, elliptic," or spatulate, 5 mm. long; fruit red, hemispheric. Woods: Ida. 

 Jl. 



12. R. peramoenus (Greene) Rydb. Stems biennial, erect, 1-2 m. high, 

 usually glabrous and shining, rather sparingly bristly; leaves of the turions pin- 

 nately 3-5-foUolate, green on both sides, only sparingly grayish-puberulent 

 beneath when young; terminal leaflet cordate or ovate, sometimes 3-lobed, 

 sharply and doubly serrate; lateral leaflets sessile, obliquely ovate; leaves of the 

 floral branches usually ternate, their leaflets usually smaller and broader; racemes 

 short, few-flowered; pedicels and hypanthium rather densely glandular-hispid 

 and glandular-puberulent; petals white, erect, sjiatulate, 6 mm. long; fruit red, 

 hemispheric, 12 mm. broad. Batidaca peramoena Greene. Damp woods: eOre. 

 ^Wash. — w Mont. Suhjnonl. My-Jl. 



13. R. viburnifolius (Greene) Rydb. Stems biennial, yellowish or brown- 

 ish, seldom i)uri)lish, more or less densely bristly with fine l)ristles, about 1 m. 

 high; leaves of the turions often 5-foliolate, those of the floral branches 3-foliolate; 

 leaflets green on both sides or sparingly tomentulose beneath when young, 

 incised-serrate; terminal leaflet rhombic-ovate or ovate, 4-fi cul long, tlie lateral 

 ones somewhat smaller, obliquely ovate; racemes short, few-flowered; pedicels, 

 hypanthium, and calyx densely glandular-hispid and somewhat bristly; petals 

 white, erect, 5-7 mm. long; fruit hemispheric, red or yeflowish. Balidaca viburni- 



