80 Rydberg: Notes on Rosaceae 



25. Rosa Copelandii Greene, sp. nov. 



Stem dark purple, terete, shining, sparingly armed with straight 

 infrastipular prickles, which are about 5 mm. long, rather stout 

 and somewhat flattened below; floral branches 1-2 dm. long, 

 purple, more or less armed; stipules 1-2 cm. long, adnate, gla- 

 brous, more or less dilated, thin, often tinged with purple; free 

 portion semi-lunate, acuminate; petiole and rachis glabrous, often 

 slightly prickly, purplish'; leaflets five or seven, oval or elliptic, 

 thin, perfectly glabrous on both sides, finely serrate, 1-3 cm. long; 

 flowers corymbose; pedicels glabrous, short, 1-1.5 cm. long; hypan- 

 thium glabrous, urn-shaped, rounded at the base, prolonged above 

 into a distinct neck, in fruit 9-10 mm. thick, 10-12 mm. long; 

 sepals lanceolate, about 15 mm. long, caudate-attenuate, glabrous 

 on the back, tomentose on the margins, in fruit erect and persist- 

 ent; achenes inserted in and near the bottom of the hypan- 

 thium. 



Dr. Greene recognized this species, but for some reason did 

 not publish it. It is characterized by its ovoid urn-shaped hypan- 

 thium, with a conspicuous neck, and glabrous leaves. 



California: Mt. Eddy, Siskiyou County, September 8, 1903, 

 Copeland [Baker's distribution number] 3875. 



26. Rosa pilifera Rydberg, sp. nov. 



Stem I m. high or more, at first yellowish, in age dark gray, 

 terete, armed with straight infrastipular and scattered prickles 

 3-5 mm. long, somewhat flattened below; floral branches 1-3 dm. 

 long, usually sparingly armed; stipules adnate, the lower narrow, 

 the upper dilated, 1-1.5 cm. long, pilose and glandular on the back, 

 glandular-ciliolate on the margins; free portion linear-lanceolate 

 to ovate, ascending; petiole and rachis pilose, glandular and some- 

 times with a few weak prickles; leaflets five to seven, thin, oval, 

 2-3.5 cm long, sparingly pilose above, more densely so and some- 

 what glandular-pruinose beneath, usually more or less double- 

 toothed and the teeth often gland-tipped ; flowers corymbose ; ped- 

 icels 1-3 cm. long, more or less pilose; hypanthium ellipsoid, with 

 a neck, pilose at least when young, in fruit 8-10 mm. thick, 

 12-15 mm. long; sepals lanceolate, caudate-attenuate, 1.5 cm. 

 long, more or less pilose, in fruit erect; petals about 1.5 cm. long; 

 styles distinct, persistent, not exserted. 



This species has the leaflets of R. Aldersonii, i. e., double-toothed 

 and glandular beneath, but they are thinner, the prickles are 

 slender, straight, or rarely slightly curved, anctthe young hypan- 



