528 NORTH AMERICAN FLORA [VOLUME 22 
back, glandular-ciliolate on the margins; petiole and rachis puberulent, and glandular-puberu- 
lent; leaflets 5-7, oval, 1-2.5 cm. long, glabrous above, pale, finely puberulent, and glandular- 
granuliferous beneath, finely serrate; flowers mostly solitary; pedicels short, 1-2 em. long, 
glabrous; hypanthium glabrous, ellipsoid, in fruit 8 mm. thick and 12 mm. long, dark-purple; 
sepals lanceolate, caudate-attenuate, puberulent but scarcely glandular, in fruit erect, persist- 
ent; achenes inserted both in the bottom and on the sides of the hypanthium. 
Type collected near Pecos, New Mexico, August 8, 1908, Paul C. Standley 5043 (herb. N. Y. 
Bot. Gard.). 
DISTRIBUTION: New Mexico (and Arizona?). 
118. Rosa Copelandi Greene, Leaflets 2: 264. 1912. 
Stem dark-purple, terete, shining, sparingly armed with straight infrastipular prickles, 
which are about 5 mm. long, rather stout and somewhat flattened below; floral branches 1-2 
dm. long, purple, more or less armed; stipules 1-2 cm. long, adnate, glabrous, more or less 
dilated, thin, often tinged with purple, the free portion semi-lunate, acuminate; petiole and 
rachis glabrous, often slightly prickly, purplish; leaflets 5 or 7, oval or elliptic, thin, perfectly 
glabrous on both sides, finely serrate, 1-3 cm. long; flowers corymbose; pedicels glabrous, 
short, 1-1.5 em. long; hypanthium glabrous, urn-shaped, rounded at the base, above pro- 
duced into a distinct neck, in fruit 9-10 mm. thick, 10-12 mm. long; sepals lanceolate, about 
15 mm. long, caudate-attenuate, giabrous on the back, tomentose on the margins, in fruit 
erect and persistent; achenes inserted in and near the bottom of the hypanthium. 
TYPE LOCALITY: Mt. Eddy, Siskiyou County, California. 
DISTRIBUTION: Northern California. 
Rosa Copelandi X Eastwoodiae. In the slender habit, the small fruit and the broader sepals 
resembling R. Eastwoodiae, but the leaves are perfectly glabrous and the hypanthium is more ins 
clined to be urn-shaped as in R. Copelandi. Siskiyou County, California. 
119. Rosa pilifera Rydb. Bull. Torrey Club 44: 80. 1917. 
Stem 1 m. high or more, at first yellowish, in age dark-gray, terete, armed with straight 
infrastipular and scattered prickles 3-5 mm. long, somewhat flattened below; floral branches 
1-3 dm. long, usually sparingly armed; young shoots densely prickly; stipules adnate, the 
lower narrow, the upper dilated, 1-1.5 cm. long, pilose and glandular on the back, glandular- 
ciliolate, on the margins, the free portion linear-lanceolate to ovate, ascending; petiole and 
rachis pilose, glandular and sometimes with a few weak prickles; leaflets 5—7, thin, oval, 2—3.5 
cm. long, sparingly pilose above, more densely so and somewhat glandular-pruinose beneath, 
usually more or less double-toothed, the teeth often gland-tipped; flowers corymbose; pedicels 
1—3 cm. long, more or less pilose; hypanthium ellipsoid, with a neck, pilose at least when young, 
in fruit 8-10 mm. thick, 12-15 mm. long; sepals lanceolate, caudate-attenuate, 1.5 cm. long, 
more or less pilose, in fruit erect; petals about 1.5 cm. long; styles distinct, persistent, not 
exserted. 
TYPE LOCALITY: San Francisco, California. 
DISTRIBUTION: Middle California. 
IX. Pimpinellifoliae. Upright shrubs, densely armed with scattered rather weak 
prickles, mixed with bristles; leaflets 7-9, small, sharply serrate; stipules adnate, narrow with 
spreading auricles; flowers solitary without bracts; sepals erect, persistent; styles not exserted, 
persistent. 
120. Rosa pimpinellifolia L. Syst. Nat. ed. 10. 1063. 1759. 
Rosa spinosissima I,. Sp. Pl. 491, in part. 1753. 
Rosa lutescens Pursh, Fl. Am. Sept. 735. 1814. 
Rosa illinoiensis Baker; Willm. Gen. Rosa 1: 243. 1910. 
Stem 1-4 dm. high, erect, from a rootstock, branched with spreading branches, terete, 
densely armed with straight terete prickles and numerous bristles, which are usually some- 
what reflexed; stipules glabrous, not glandular, rarely glandular-denticulate; petiole and rachis 
