PART 6, 1918] ROSACEAE 529 
glabrous or rarely slightly pubescent, sometimes sparingly glandular, often prickly; leaflets 
5-11, small, nearly orbicular to broadly elliptic, sharply serrate with divergent short, simple 
or glandular-dentate teeth, glabrous on both sides, dark-green above, light-green beneath, 
1-2 cm. long; flowers solitary without bracts; pedicels glandular-hispid or naked; hypanthium 
globose, rarely slightly elongate; sepals narrowly lanceolate, glandular on the back and the 
margins, acuminate, in fruit erect and persistent; petals white, usually yellowish at the base, 
15—20 mm. long; styles not exserted, woolly, distinct. 
TYPE Loca.ity: [ Not given, but supplied in Sp. Pl. ed. 2, as] Europe. 
£ DISTRIBUTION: New Hampshire to Ontario and Illinois; sparingly naturalized from Europe 
and Asia. 
ILLUSTRATIONS: Pallas, Fl. Ross. pl. 75; Redouté, Roses 1: pl. opp. 83; pl. opp. 85; pl. opp. 119; 
3: pl. opp. 23; A. Dietr. Fl. Boruss. 12: pl. 864; Fl. Dan. pl. 398; Sv. Bot. pl. 559; Engl. Bot. pl. 187; 
Bot. Reg. 5: pl. 431; Nouv. Duham. 7: pl. 16; Gartenflora 11: pl. 352 (double varieties) ; Belg. Hort. 
12: opp. 194 (double varieties); Wi!llm. Gen. Rosa pl. opp. 247; pl. opp. 249. 
X. Minutifoliae. Low shrubs with scattered prickles; leaflets small, few, incised-serrate; 
stipules adnate, with divergent broad auricles; flowers solitary, without bracts; sepals erect, 
persistent, the outer lobed; achenes few, borne only in the bottom of the hypanthium; styles 
not exserted, persistent. 
121. Rosa minutifolia Engelm. in Parry, Bull. Torrey Club 9: 97. 
1882. 
Stem 0.5-1.5 m. high, much branched, finely pilose when young, in age glabrate, densely 
armed with slender, straight or slightly curved prickles, which are reddish-brown, terete, 5-10 
mm. long and at first pubescent; leaves 5—7-foliolate; stipules adnate, 5 mm. long or less, 
pilose, often glandular-denticulate or glandular-ciliate, the free portion short and spreading; 
petiole and rachis finely pilose, and sometimes with few glandular bristles; leaflets 2-6 mm. 
long, oval or suborbicular, incisedly double-serrate, finely pilose on both sides, sometimes with 
gland-tipped teeth; flowers solitary; peduncles densely pilose, very short; hypanthium globose, 
densely bristly, with pubescent slender prickles, and tomentose; sepals ovate, abruptly caudate, 
1 cm. long or less, toraentose on both sides, the outer often with foliaceous toothed lobes; 
in fruit persistent and erect; petals suborbicular, deeply rose-purple to white, 10-15 mm. 
long; styles persistent, distinct, not exserted; achenes borne in the bottom of the hypanthium. 
TYPE LocaLity: All Saints’ (Todos Santos) Bay, Lower California. 
DISTRIBUTION: Lower California. 
ILLUSTRATION: Stand. Cycl. Hort. f. 3457. 
122. Rosa stellata Wooton, Bull. Torrey Club 25: 152. 1898. 
Rosa Vernonii Greene, [Leaflets 2: 63. 1910. 
Stems 4-6 dm. high, much branched, armed with numerous straight or slightly curved 
prickles, which are 2-8 mm. long, also bristly and, especially when young, closely covered 
with stellate trichomes; leaves small, 1-1.5 cm. long, 3-foliolate; stipules oblong, 5-7 mm. 
long, adnate half their length, entire or with 1 or 2 rounded teeth, pubescent, the free portion 
more or less spreading; petioles finely pilose; leaflets cuneate, or obovate-cuneate, 5-8 mm. 
long and almost as broad, rounded or usually truncate at the apex, and with 5—8 teeth at the 
apex, finely pilose on both sides, or glabrate, rarely glandular on the margin; flowers solitary, 
terminal; pedicels short, 1 cm. or less, long, stout; hypanthium globose, in fruit about 1 cm. 
in diameter, glabrate or finely pubescent and covered with numerous straight prickles; sepals 
lanceolate, about 1.5 cm. long, caudate-acuminate, often with some foliaceous, entire or ser- 
rulate, glandular-ciliate lobes, tomentose within and on the margins, prickly on the back, 
in fruit persistent and erect; petals broadly obovate, deeply rose-purple, 2—2.5 cm. long; pistils 
rather few; styles distinct, not exserted, persistent; achenes inserted mostly in the bottom of 
the hypanthium. 
TYPE LOCALITY: Cueva in the Organ Mountains, New Mexico. 
DISTRIBUTION: Western Texas to Arizona. 
ILLUSTRATION: Bull. Torrey Club 25: pl. 335, f. 1-5, 9. 
