Parr 6, 1918] ROSACEAE 525 
8 mm. thick; sepals about 15 mm. long, lanceolate, caudate-attenuate, glabrous on the back, 
tomentose on the margins and inside, in fruit erect and persistent; petals about 2 cm. long, 
dark-rose-colored, white at the base; styles persistent, distinct, not exserted. 
TYPE LOCALITY: Kin Kale Range, Pecos Canyon, New Mexico. 
DISTRIBUTION: Type locality and vicinity. 
107. Rosa Macounii Greene, Pittonia 4: 10. 1899. 
Rosa Woodsii Lindl. Bot. Reg. 12: pl. 976. 1826. Not R. Woodsii Lindl. 1820. 
Rosa Woodsii S. Wats. Proc. Am. Acad. 20: 345, mainly. Ds 
Rosa grosseserrata EK. Nelson, Bot. Gaz. 30: 119. 1900. 
Rosa Maximiliani Rydb. Fl. Colo. 191. 1906. Not R. Maximiliani Nees. 1841. 
Rosa subunda Lunell, Am. Midl. Nat. 2: 153. 1912. (Depauperate.) 
Rosa naiadum Lunell, Am. Midl. Nat. 3: 139. 1913. 
Stem much branched, chestnut-brown, 0.5—-2 m. high, usually armed with straight terete 
prickles 5—8 mm. long; the new shoots bristly; floral branches about 1 dm. long, often unarmed; 
stipules adnate, 1-2 cm. long, entire or glandular-denticulate, puberulent on the back, the 
lower narrow, the upper dilated, the free portion ovate or lanceolate; rachis and petiole finely 
puberulent, unarmed; leaflets obovate, usually cuneate at the base, serrate, 1-3 cm. long, 
green and glabrous above, pale or glaucous, finely puberulent and sometimes pruinose beneath; 
flowers solitary or in few-flowered corymbs; pedicels 1-2 cm. long, glabrous; hypanthium 
globose, without a neck, glabrous, 8-10 mm. thick, glabrous; sepals lanceolate, caudate- 
acuminate, glabrous or sparingly pubescent on the back, tomentose on the edges and within, 
rarely with a few glands near the margin without, in age erect and persistent; petals about 
2 cm. long, obcordate, rose-colored; styles distinct, persistent, not exserted; achenes inserted 
both in the bottom and on the sides of the hypanthium. 
TYPE Locality: Assiniboia [now Saskatchewan]. 4 
DISTRIBUTION: Saskatchewan to Nebraska, western Texas, Oregon, and British Columbia. 
ILLUSTRATION: Bot. Reg. 12: pl. 976. 
Rosa Bourgeauiana X Macounii. This resembles Rosa Macounti in habit and flowers, but 
the young shoots are exceedingly bristly and the leaflets, especially those of the shoots, are very 
broad and rounded, with broad occasionally double teeth, and slightly glandular-granuliferous. 
Spanish Basin, June 23, 1897, Rydberg & Bessey 4420. Alberta and Montana. 
Rosa Fendleri X Macounii. See under R. Fendleri. 
Rosa gymnocarpa X Macounii. See under R. gymnocarpa. 
108. Rosa Covillei Greene, Leaflets 2: 262. 1912. 
Stem low, 1 m. high or less, glaucescent, bristly and with weak straight infrastipular 
prickles 6—8 mm. long; leaves 7-foliolate; stipules narrow, adnate, about 1 cm. long, glandular- 
ciliate; petioles and rachis more or less glandular; leaflets oval or obovate, simple-serrate, 
deep green and glabrous above, paler and puberulent beneath, 1.5—2 cm. long; flowers solitary; 
pedicels short, about 1 cm. long, glabrate; hypanthium glabrous, round-ovoid, contracted into 
a neck, in fruit 1.5 cm. in diameter; sepals ovate, short-acuminate, about 1 cm. long, persistent, 
ascending; styles persistent, distinct, not exserted. 
TYPE LOCALITY: Yellow pine forest, south of Naylor, Klamath County, Oregon. 
DISTRIBUTION: Known only from the type locality. 
109. Rosa Bolanderi Greene, Leaflets 2: 261. 1912. 
Stem low, diffusely branched, strongly armed with bristles as well as stout, spreading 
infrastipular prickles; leaves 5—7-foliolate; stipules small, adnate, glandular-ciliate, less than 
1 cm. long; petiole and rachis with a few prickles and many short-stalked glands; leaflets 
rounded-obovate, or oval, more or less double-toothed, glabrous on both sides or slightly 
glandular-granuliferous beneath, 7-15 mm. long; flowers 1—2; pedicels short, sparingly glandu- 
lar-hispid; hypanthium ellipsoid, glabrous, with a distinct neck, in fruit about 1.5 cm. long 
and nearly 1 cm. in diameter; sepals ovate, short-acuminate, less than 1 cm. long, in fruit 
erect and persistent; styles distinct, persistent, not exserted. 
TYPE LOCALITY: Oakland Hills, California. 
DISTRIBUTION: Central California. 
