512 NORTH AMERICAN FLORA [VOLUME 22 
62. Rosa Brownii Rydb. Bull. Torrey Club 44: 70. 1917. 
Stem slender, terete, glabrous, green or brownish, armed with slender straight prickles, 
which are 5-8 mm. long, terete except the expanded depressed base; leaves 5-—7-foliolate; 
stipules usually broad, 1-1.5 cm. long, pilose and somewhat glandular, the free portion ovate, 
acute; petiole and rachis finely pilose and more or less glandular; leaflets thin, 1-3 cm. long, 
serrate with some of the teeth double, broadly oval, acute at the apex, glabrate above, paler, 
pilose, and slightly glandular-muricate beneath; flowers mostly solitary; pedicels 1-2 cm. long, 
glabrous; hypanthium globose, glabrous, in fruit about 12 mm. in diameter; sepals lanceolate, 
caudate-acuminate, usually with foliaceous tips, about 2 cm. long, glabrate on the back, 
tomentose and slightly glandular-hispid around the margins, and tomentose within; petals 
broadly obovate, rose-colored, 1.5—2 cm. long; styles distinct, persistent, not exserted; achenes 
inserted both in the bottom and on the sides of the hypanthium. 
TYPE LOCALITY: Mount Shasta, California. 
DISTRIBUTION: Northern California. 
63. Rosa Spaldingii Crépin, Bull. Soc. Bot. Belg. 15: 42. 1876. 
Rosa macrocarpa Raf. Med. Fl. 2: 258. 1830. Not R. macrocarpa Mérat, 1812. 
Rosa cinnamomea Borrer; Hook. Fl. Bor. Am. 1: 200. 1833. Not R. cinnamomeal,. 1753. 
Rosa megacarpa Nutt.; T. & G. Fl. N. Am. 1: 460, as asynonym. 1840 
Rosa nutkana S. Wats. Proc. Am. Acad. 29: 341, in part. 1885. 
Stem erect, terete, brown, about 1 m. high, usually armed with straight paired prickles 
5-10 mm. long; young shoots occasionally slightly hispid; floral branches glabrous, usually 
somewhat prickly; stipules adnate to the petioles, more or less dilated, finely puberulent and 
somewhat glandular-toothed, 1-2 cm. long, the free portion ovate or lanceolate, usually acute; 
petioles and rachis grayish-puberulent and sometimes slightly glandular; leaflets 5-7, oval or 
rounded-oval, coarsely and usually regularly toothed, but the teeth scarcely glandular, 1.5—5 
em. long, light-green and glabrous above, pale and puberulent beneath; flowers solitary or 
few; pedicels 2-3 cm. long, glabrous; hypanthium glabrous; sepals lanceolate, entire, caudate- 
attenuate, sometimes with foliaceous tips, about 2 cm. long, glabrous or very rarely glandular 
on the back, villous-tomentose on the margins and within; petals rose-colored, 2—3 cm. long; 
hypanthium in fruit globose, without neck, 12-18 mm. thick; sepals persistent, erect. 
TYPE LOCALITY: Clear Water, Idaho. 
DISTRIBUTION: British Columbia to Wyoming, Utah, and Oregon. 
Rosa pisocarpa X Spaldingii. This most resembles Rosa Spaldingii in leaf-form, in pubescence 
and in the size of the flowers and fruit, but the flowers are corymbose and with the large foliaceous 
bracts characteristic of R. pisocarpa. Eastern Oregon, June 22 and September 25, 1900, Cusick 
2418 (herb. N. Y. Bot. Gard.). Perhaps a hybrid with R. ultramoniana instead of R. pisocarpa. 
64. Rosa Underwoodii Rydb. Bull. Torrey Club 31: 560. 1904. 
Stem 1-2 m. high, dark-brown or purplish, in age gray, round, glabrous, armed with 
stout, recurved, paired infrastipular prickles, and also often with scattered ones, 5-10 cm. long; 
floral branches 1-2 dm. long, usually armed; stipules adnate, narrow or the upper ones dilated, 
1-2 cm. long, puberulent, glandular-dentate, the free portion lanceolate, acute or acuminate; 
petiole and rachis puberulent and with sessile glands; leaflets 5-7, obovate or oval, 2—4 cm. long, 
usually obtuse, somewhat irregularly or doubly serrate, glabrous on both sides or finely puberu- 
lent and paler beneath; flowers usually solitary or two together; pedicels often glandular- 
hispid; hypanthium more or less pear-shaped, sparingly bristly, in fruit about 2-3 cm. long 
and 1.5—2 em. broad; sepals lanceolate, caudate-acuminate, about 2 cm. long, erect and per- 
sistent in fruit, more or less glandular and pubescent on the back, tomentose within; petals 
obcordate, about 2.5 cm. long and fully as wide; styles numerous, distinct, not exserted. 
TYPE LOCALITY: Hills about Box Canyon, west of Ouray, Colorado. 
DISTRIBUTION: Mountains of southern Colorado. 
