532 NORTH AMERICAN FLORA [VOLUME 22 
128. Rosa Bridgesii Crépin, Bull. Soc. Bot. Belg. 15: 54. 1876. 
Rosa gymnocarpa pubescens S. Wats.; Brewer & Wats. Bot. Calif. 1: 187. 1876. 
Rosa crenulata Greene, Leaflets 2: 255. 1912. 
Stem slender, 2-10 dm. high, terete, grayish-brown, glabrous, armed with straight or 
slightly curved infrastipular prickles, which are 5—7 mm. long and slender or moderately stout; 
floral branches usually short, often armed; stipules adnate, short, 5-10 mm. long, glandular- 
ciliate on the margins, the free portion broadly semilunar or ovate, more or less spreading; rachis 
and petiole puberulent and glandular; leaflets suborbicular or oval, rounded at both ends, 
8-20 mm. long, doubly-serrate with gland-tipped teeth, finely pilose on both sides, especially 
on the lower side; flowers mostly solitary; pedicels glabrous or somewhat glandular-hispid, 
1—2 em. long; hypanthium glabrous, globose 6-7 mm. thick; sepals ovate, acuminate, about 8 
mm. long, often somewhat glandular on the back, tomentose on the margins and within, 
deciduous together with the upper portion of the hypanthium and the styles; petals about 
1 cm. long, obcordate. 
TYPE LOCALITY: California. . 
DISTRIBUTION: Oregon and California. 
129. Rosa oligocarpa Rydberg, sp. nov. 
A slender shrub; older stems chestnut-colored, armed with slender, straight, infrastipular 
prickles about 5 mm. long; young twigs yellowish-green; stipules adnate, rather broad, puberu- 
lent, entire or glandular-dentate, the free portion broadly lanceolate; leaflets mostly 5, oblan- 
ceolate, 2—3.5 cm. long, serrate with lanceolate teeth, entire at the cuneate base, puberulent on 
both sides or glabrate above; flowers mostly solitary; pedicels glandular-hispid; hypanthium 
smooth, ellipsoid, in fruit about 8 mm. long and 4 mm. broad; sepals lanceolate, caudate- 
attenuate, tomentose within, puberulent and somewhat glandular without; styles few, slightly 
exserted. 
Type collected in Goose Valley, Shasta County, California, 1912, Alice Eastwood 945 (herb. 
Arnold Arboretum). 
DOUBTFUL AND EXCLUDED SPECIES 
Rosa acuminata Raf. Ann. Gén. Sci. Phys. 5: 216. 1820. This might be R. dasistema 
or R. Bicknellit, from the obovate fruit. It was described as having 3-5 leaflets, which agrees 
with the former, but the sepals were described as lobed, which is rarely the case in R. dasistema. 
R. Bicknellit has usually lobed sepals, but the leaflets are mostly 7. 
Rosa americana Breiter (Hort. Breit. 416; name. 1817); Link, Enum. 2:56. 1822. This 
seems from Link’s description to be R. blanda; but Crépin who had seen an authentic 
specimen claimed that it is a form of R. pimpinellifohia. 
Rosa Evratina Bosc, Nouv. Cours. Agr. 11: 256. 1809. Said to be from ‘‘ Carolina,” 
but described from cultivated plants; probably not North American. 
Rosa floribunda Andr. Roses pl. 106. 1828. A rose said to have been received from Amer- 
ica. Andrews regards it (probably correctly) as R. moschata X indica. WHence it should be 
excluded. 
Rosa globosa Raf. Ann. Gén. Sci. Phys. 5: 215. 1820. This is described as having 
straight geminate prickles, curved prickles on the petioles, 3—5-foliolate leaves, pubescent 
beneath, paniculate inflorescence, and large glabrous fruit. This suggests R. palustris, except 
the glabrous fruit and the straight prickles. It can not be R. carolina as suggested by Watson. 
Rosa nivea Raf. Ann. Gén. Sci. Phys. 5: 218. 1820. R. Rafinesquii Seringe, in DC. 
Prodr. 2: 611. 1825. Unknown. 
Rosa pendulina 1,. has often been credited to America. It is the same as the European 
R. alpina. 
Rosa riparia Raf. Ann. Gén. Sci. Phys. 5: 215. 1820. This is described as having 5, 
double-serrate leaflets, hispid and prickly stems, straight prickles, turbinate, nearly glabrous 
fruit and lobed sepals. It might be the same as R. serrulata Raf., if the hypanthium had not 
been turbinate. 
