PART 6, 1918] ROSACEAE 521 
with a few prickles; leaflets 5—7, elliptic or oval, thin, glabrous on both sides, yellowish-green, 
coarsely serrate throughout, petioluled, 1-4 cm. long; flowers corymbose, leafy-bracted; pedicels 
1—2 cm. long, glabrous; hypanthium globose, glabrous, at first light-green, in fruit about 1 cm. 
thick and orange; sepals lanceolate, caudate-attenuate, about 1.5 cm. long, glabrous or nearly 
so on the back, tomentose on the margins and within, in fruit erect and persistent; styles 
distinct, persistent, not exserted; achenes inserted both in the bottom and on the sides of 
the hypanthium. 
TYPE Locality: Allen Canyon, southwest of Abajo Mountains, Utah. 
DISTRIBUTION: Utah and Idaho to eastern Washington and California. 
94. Rosa Woodsii Lindl. Ros. Monogr. 21. 1820. 
Rosa Maximiliani Nees, in Max. Reise N. Am. 2: 434. 1841. 
Rosa foliolosa leiocarpa Torrey, in Frém. Rep. 85, asa hyponym. 1843. 
Rosa Macounii Rydb. Fl. Colo. 191. 1906. Not R. Macounii Greene, 1899. 
? Rosa fimbriatula Greene, Leaflets 2: 135. 1911. 
Rosa Sandbergii Greene, Leaflets 2: 136. 1911. 
Rosa deserta Lunell, Am. Midl. Nat. 2: 156. 1912. 
Stem reddish-brown, terete, glabrous, 0.5—2 m. high, armed with rather numerous, straight 
or slightly curved prickles 4-8 mm. long; floral branches 1-2 dm. long, usually somewhat 
prickly; stipules adnate, narrow or the upper somewhat dilated, 1-1.5 cm. long, glabrous, 
usually glandless, rarely slightly glandular-pruinose, entire or somewhat toothed, the free por- 
tion lanceolate to ovate; rachis and petiole glabrous, occasionally with a few prickles or 
stalked glands; leaflets 5-7, obovate, cuneate at the base, distinctly petioluled, entire at the 
base, serrate above, glabrous on both sides, glaucous beneath, 1-2 cm., rarely 3 cm. long; 
flowers solitary or 2 or 3 together; pedicels 1-2 cm. long, glabrous; hypanthium globose, 
or rarely ellipsoid, glabrous, in fruit 8-10 mm. thick; sepals lanceolate, caudate-attenuate, 
about 15 mm. long, glabrous or slightly glandular on the back, tomentose on the margins and 
within, erect in fruit; styles persistent, distinct, not exserted; achenes inserted in the bottom 
and on the sides of the hypanthium. 
TYPE LOCALITY: On the Missouri River. 
DISTRIBUTION: Saskatchewan and North Dakota to Kansas, Utah, and British Columbia. 
ILLUSTRATION: Willm. Gen. Rosa fl. opp. 236. 
Rosa gymnocarpa X Woodsii. See under R. gymnocarpa. 
95. Rosa mohavensis Parish, Bull. S. Calif. Acad. 1: 87. 1902. 
Rosa californica glabrala Parish, Erythea 6: 88. 1898. 
Stem slender, 5-10 dm. high, brown, glabrous, terete, armed with scattered prickles, 
which are 3-5 mm. long, straight or nearly so, slightly flattened below; floral branches short, 
less than 1 dm. long, more or less prickly; stipules adnate, narrow, glabrous, mostly entire, 
1 cm. long or less; petiole and rachis glabrous, occasionally with a few prickles; leaflets usually 5, 
oval or elliptic, 5-15 mm. long, serrate, short-petioluled, glabrous on both sides, more or less 
shining above; flowers solitary, rarely 2 or 3; pedicels glabrous, about 1 cm. long; hypanthium 
globose, glabrous; sepals lanceolate, caudate-attenuate, about 1 cm. long; petals rose-colored, 
obcordate, about 1.5 cm. long; styles distinct, persistent, not exserted. 
oes LOCALITY: Cushenberry Springs, at the desert foot of the San Bernardino Mountains, 
California. 
DISTRIBUTION: Borders of Mojave Desert, California. 
ILLUSTRATION: Bull. S. Calif. Acad. 1: f. 7. 
96. Rosa Johnstonii Rydberg, sp. nov. 
Stem 1 m. high or more, terete, glabrous, green, armed with few slender nearly straight 
infrastipular prickles 5-10 mm. long, the young shoots more prickly and bristly; stipules narrow, 
adnate, 1.5-2 cm. long, finely pubescent, the free portion lanceolate, entire; rachis finely 
villous; leaflets 3-7, broadly obovate, 3—5 cm. long, cuneate at the base, rather coarsely dentate, 
sparingly puberulent above, densely short-villous beneath; flowers corymbose; pedicels gla- 
brous or sparingly pilose, 1-2 cm. long; hypanthium glabrous, in fruit globose or rounded- 
ellipsoid, about 12 mm. thick and 12-14 mm. long, orange or reddish, with a short neck; sepals 
