PART 6, 1918] ROSACEAE 513 
65. Rosa Durandii Crépin, Bull. Soc. Bot. Fr. 22: 19. 1875. 
Rosa kamtschatica A. Gray, Proc. Am. Acad. 8: 382. 1872. Not R. kamtschatica Vent. 1800. 
Stem terete, brown, 2-3 m. high, armed with very stout prickles, which are about 1.5 cm. 
long, very flat, curved, puberulent; branches pubescent and densely glandular-hispid; stipules 
2 cm. long, copiously glandular on the back, densely glandular-ciliate, the upper dilated, the 
free portions lance-ovate, somewhat falcate; petiole and rachis unarmed, pubescent and very 
glandular; leaflets 5—9, broadly oval, rounded at the base, acute at the apex, glabrous above, 
densely glandular-granuliferous beneath, double-toothed with gland-tipped teeth; flowers 
solitary or 2 or 3 together; pedicels 1-2 cm. long, densely glandular; hypanthium smooth or 
slightly glandular at the base, globose, in fruit 12-15 mm. broad; sepals entire, broadly- 
lanceolate, caudate-attenuate, about 1.5 cm. long, glandular on the back, tomentose on the 
margins and inside, in fruit erect and persistent; styles distinct, persistent, not exserted. 
TYPE LOCALITY: Oregon. 
DISTRIBUTION: Oregon (and western Idaho?). 
66. Rosa melina Greene, Pittonia 4: 10. 1899. 
Rosa pandorana Greene; Rydb. Fl. Colo. 191. 1906. 
Stem stout, much branched, about 1 m. high, red, terete, glabrous, armed with curved 
prickles, which are 3-8 mm. long, flattened at the base; floral branches 1—2 dm. long, armed 
or unarmed; stipules adnate, the lower narrow, the upper dilated, about 2 cm. long, glandular- 
denticulate on the margins, usually glandular-granuliferous on the back, the free portion lanceo- 
late or ovate, more or less spreading; petioles and rachis more or less glandular; leaflets mostly 
7, oval or obovate, coarsely serrate, 1.5—3 cm. long, glabrous or essentially so on both sides, 
sometimes somewhat glaucous; flowers mostly solitary; pedicels short, 1-2 em. long, glabrous; 
hypanthium glabrous, globose, in fruit about 12 mm. thick; sepals lanceolate, caudate-attenu- 
ate, about 2 cm. long, sparingly glandular-hispid on the back, villous on the margins, in fruit 
erect and persistent; petals rose-colored, obcordate, 2—2.5 cm. long; styles distinct, persistent, 
not exserted; achenes inserted both in the bottom and on the sides of the hypanthium.. 
TYPE LOCALITY: Cerro Summit above Cimarron, Colorado. 
DISTRIBUTION: Mountains of Colorado and Utah. 
Rosa Bourgeauiana X melina. ‘This resembles most R. melina, but the stem is erect, strict, 
densely prickly, the leaflets more coarsely toothed and the stipules and rachis glandular; the prickles 
are mostly straight or merely slightly curved. City Creek Canyon, near Salt Lake City, Utah, 
June 9, 1905, Rydberg 6140. 
67. Rosa aciculata Cockerell, Proc. Acad. Phila. 56: 114. 1904. 
Rosa blanda aciculata Cockerell, Science Gossip 25: 188. 1889. 
Stem low, much branched, 1-3 dm. high, at first purple, in age gray and the bark flaky, 
armed with curved prickles, which are 3-5 mm. long and flattened at the base; branches less 
than 1 dm. long, usually armed; stipules adnate, 1-2 cm. long, the lower narrow, the upper 
dilated, densely glandular on the margin and the back; rachis and petiole copiously glandular; 
leaflets 5 or.7, or on the young shoots 9, oval, acute or obtuse, 1-2 cm. long, more or less doubly- 
serrate, especially those of the young shoots, with ovate gland-tipped teeth; flowers solitary; 
pedicels 1-2 cm. long, glabrous or often more or less glandular-hispid; hypanthium globose, 
glabrous or glandular-hispid; sepals densely glandular-hispid, ovate-lanceolate, 1.5—-2.5 cm. 
long, caudate-attenuate, sometimes slightly lobed; petals rose-colored or white, obcordate, 
about 2.5 cm. long; pistils persistent, distinct, not exserted; achenes inserted both in the 
bottom and on the sides of the hypanthium. 
TYPE LOCALITY: Wet Mountain Valley, Colorado. 
DISTRIBUTION: Colorado and Utah. 
68. Rosa oreophila Rydb. Bull. Torrey Club 31: 561. 1904. 
Rosa Bakeri Rydb. FI. Colo. 190, 191. 1906. Not R. Bakeri Déségl. 1864. 
Stems 2-3 m. high, reddish, glossy, glabrous, mostly armed with weak curved prickles 5 
mm. long, or rarely unarmed; stipules broad, adnate, 1—2 cm. long, finely puberulent and gland- 
