PART 6, 1918] ROSACEAE 515 
72. Rosa Aldersonii Greene, Pittonia 5: 110., 1903. 
Rosa californica Petersiana C. Meyer, Zimmtr. 19. 1847. 
Rosa cinnamomea var. Benth. Pl. Hartw. 309. 1849. 
Rosa californica glandulosa Crépin, Bull. Soc. Bot. Belg. 15:52. 1876. 
Rosa Aschersoniana Crépin, Bull. Soc. Bot. Belg. 15:52, asasynonym. 1876. 
Rosa Breweri Greene, Leaflets 2: 262. 1912. 
Stems erect, brown, branched, 1—2 m. high, glabrous, armed with recurved, more or less 
flattened prickles 5-10 mm. long; stipules adnate, 1-2 cm. long, usually narrow, somewhat 
pubescent, more or less glandular-puberulent beneath, strongly glandular-dentate on the 
margins; petiole and rachis usually copiously glandular, somewhat pubescent and prickly; 
petioles 1-2 cm. long; leaflets 5—7, ovate or oval, 1-4 cm. long, obtuse at the base, acute or 
obtuse at the apex, double-serrate with gland-tipped teeth, especially the secondary ones, 
dark-green and more or less appressed-puberulent above, decidedly glandular-puberulent and 
often pubescent beneath; inflorescence usually corymbiform, leafy-bracted, 1-—8-flowered; 
pedicels short, glabrous or slightly villous or sometimes glandular (R. Breweri); hypanthium 
glabrous, hemispheric, with a distinct neck, in fruit 10-15 mm. broad; sepals lanceolate, caudate- 
attenuate, 15-20 mm. long, villous and rarely glandular on the margins, glabrous on the back, 
tomentose within, in fruit erect and persistent or tardily deciduous; petals rose-colored, 1.5—2 
cm. long; styles numerous, distinct, sometimes somewhat exserted. 
TYPE LOCALITY: Witch Creek, San Diego County, California. 
DISTRIBUTION: California, especially in the coast ranges. 
73. Rosa Greenei Rydb. Bull. Torrey Club 44: 71. 1917. 
Stem rather slender, 1 m. or so high, purplish, glabrous, armed with curved infrastipular 
prickles, which are more or less flattened, 3-6 mm. long; leaves 5—7-foliolate; stipules narrow, 
1-1.5 cm. long, densely glandular-puberulent; petiole and rachis glandular-puberulent and 
somewhat prickly; leaflets elliptic, acute at both ends, 2—4 cm. long, glandular-double-toothed, 
puberulent above, glandular-puberulent and slightly pilose beneath; inflorescence corymbiform 
or paniculate; pedicels 1-2 cm. long, glandular-puberulent ; hypanthium elongate-ellipsoid, 
with a distinct neck, in fruit 2 cm. long and 1 cm. in diameter; sepals lanceolate, caudate- 
acuminate, about 2 cm. long, glandular-hispid on the back, tomentose within, in fruit persistent 
and erect; petals about 15 mm. long, rose-colored; styles distinct, persistent, not exserted. 
TYPE LOCALITY: Island of Santa Cruz, California. 
DISTRIBUTION: Santa Cruz Island, and apparently also near San Mateo,{California. 
74. Rosa brachycarpa Rydb. Bull. Torrey Club 44: 71. 1917. 
Stem apparently tall, stout, purple, armed with curved, flattened infrastipular prickles, 
which are about 5 mm. long; leaves mostly 7-foliolate; stipules not strongly dilated, 1—-1.5 cm. 
long, glandular-ciliate on the margins and glandular-puberulent on the back; petioles and rachis 
glandular-puberulent and slightly prickly; leaflets elliptic or narrowly oval, mostly acute at 
both ends, rather evenly serrate, with broad, occasionally double and gland-tipped teeth, 
conspicuously glandular-puberulent and slightly pilose beneath, 2-4 cm. long; inflorescence 
rather many-flowered, corymbiform; pedicels about 1 cm. long, glabrous or nearly so; hypan- 
thium depressed-globose, without a neck; sepals ovate, caudate-acuminate, about 1.5 cm. long, 
glabrous on the back, villous on the margins and tomentose within, in fruit erect and persistent; 
petals about 15 mm. long; styles distinct, persistent, longer than the stamens. 
TYPE LOCALITY: Temescal Canon, near Elsinore, California. 
DISTRIBUTION: Southern California. 
75. Rosa californica Cham. & Schlecht. Linnaea 2: 35. 1827. 
Rosa californica chammissoniana C. Meyer, Zimmtr. 18. 1847. 
Rosa californica pubescens Crépin, Bull. Soc. Bot. Belg. 15:52. 1876.. 
Rosa Hartwegiana Crépin, Bull. Soc. Bot. Belg. 15:52, asa synonym. 1876. 
Stem erect, terete, light-brown or yellowish, diffusely branched, 1-3 m. high, usually 
armed with stout flattened, recurved prickles 5-8 mm. long; young shoots sometimes bristly; 
