rosa. ROSACEA. 169 



oblong-obovate by a more gradual attenuation of the base, 4-6 lines long. 

 On rocky ridges and canyons, Idaho to the Eastern States and Canada. 



R. spithamaea Watsoa Bot. Cal. ii, 444. Stems slender, 2-12 inches 

 high, sparingly branched: stipules narrow, acuminate, glandular-ciliate: 

 rachis of the leaves glandular and more or less prickly; leaflets 5-9, ellip- 

 tical or oblong, smooth, rather coarsely and doubly serrate, 6-18 lines long : 

 flowers 12-18 lines broad, in few-flowered corymbs, pedicels receptacle and 

 calyx usually densely glandular-hispid ; sepals lanceolate, with or without 

 a foliaceous serrate appendage, 6-10 lines long; petals broadly obovate, 

 8-12 lines long; fruit not seen. Common on wooded hillsides, southwest- 

 ern Oregon and northern California. 



R. pisocarpa Gray Proc. Am. Acad, viii, 382. Stems slender, armed 

 with straight, stout or slender, ascending or spreading spines, sometimes 

 naked, not prickly: leaflets 5-9, oblong to oblong-ovate, shortly acuminate 

 to obtuse, rounded or subcuneate at base, sessile or nearly so, smooth 

 above, paler and pubescent beneath, simply toothed, 4-12 lines long: 

 flowers small, corymbose or often solitary, on short branches; pedicels 

 slender, smooth or rarely sparingly hispid: sepals more or less glandular- 

 hispid, triangular acuminate, with entire lanceolate appendages; p tals 

 obcordate, 6-» lines long: fruit globose, 3-5 lines in diameter, contracted 

 above to a very short neck. Common in low places, Brit. Columbia to 

 Oregon . 



R. Californica Cham. & Schlecht. Linnsea ii, 35. Stems often tall, 

 with usually stout more or less recurved or sometimes straight spines, 

 frequently scattered or wanting, often prickly : stipules mostly narrow, 

 usually naked, sometimes glandular-ciliate : rachis of the leaves pubescent 

 or prickly ; leaflets 3-7, round or broadly elliptical to oblong-ovate, usually 

 sessile, slightly pubescent or glabrous above, villous or tomentose be- 

 neath, simply toothed, 6-18 lines long: flowers corymbose or sometimes 

 solitary, on slender usually short and naked pedicels; sepals and recepta- 

 cle glabrous or villous or rarely hispid; petals 5-6 lines long: fruit ovate- 

 globose, with a usually prominent neck, about 6 lines long by 4 broad. 

 Brit. Columbia to California. 



R. Fendleri Crepin Bull. Soc. Bot. Belg. xv, 452. Stems often tall, 

 with mostly rather siender straight or recurved spines, often scattered or 

 wanting: stipules mostly narrow, usually naked; rachis pubescent or 

 prickly ; leaflets 5-9, oblong or oblong-obovate, more or less cuneate at 

 base often petiolulate, usually glaucous, very finely pubescent beneath or 

 glabrous or somewhat resinous, serrate with usualy simple teeth, 6-18 

 lines long: flowers small, often solitary: the short pedicels receptacle 

 and sepals glabrous; sepals lanceolate, with linear-lanceolate entire ap- 

 pendages : fruit globose or broadly ovate, with little or no neck. From 

 the Columbia river to New Mexico and Texas, and north to beyond the 

 British boundary. 



* * Styles few, distinct, deciduous with the entire calyx from the 



very contracted top of the neck of the receptacle : sepals short and 



entire., 



R. gymnocarpa Nutt. T. & G. Fl. i, 461. Stems slender and rather 

 weak, 2-10 feet high, with straight slender infrastipular and scattered 

 spines and more or less prickly : stipules usually narrow, glandular cili- 

 ate : rachis prickly and more or less glandular; leaflets 5-9, usually 7, 

 from round elliptical and obtuse to narrowly oblong and acute, glab ous, 

 rarely somewhat tomentose or resinous, doubly glandular-serrate, sessile 

 or nearly so, usually small, 4-12 lines long: flowers in 1-few-flowered 

 corymbs, on hispid or sometimes glabrous pedicels; sepals usually 3-4 

 lines long, lanceolate, the 'outer ones often glandular-ciliate all aristate 

 and usually smooth; petals broadly obcordate, 6-8 lines long: fruit 

 smooth ; oblong-obovate to globose, few-seeded. Common in forests and 

 wooded districts, Brit. Columbia to California and Montana. 



