Rydberg: Notes on Rosaceae 79 



23. Rosa Bolanderi Greene, Leaflets 2: 261. 1912 



This species is related to the R. Covillei of Oregon, but the 

 leaflets are thinner, glandular, double-toothed and decidedly 

 glandular-pruinose beneath. Crepin determined the type as R. 

 gymnocarpa with the remark that the sepals were persistent. Dr. 

 Greene also classified it in the Gymnocarpae, but it evidently does 

 not belong there. 



California: Oakland, Bolander. 



24. Rosa Pringlei Rydberg, sp. nov. 



Stem dark gray, i m. high or more, terete, slender, sparingly 

 armed with small straight infrastipular prickles, 3-5 mm. long, or 

 wholly unarmed; branches 1-3 dm. long, usually unarmed; stipules 

 adnate, rather narrow, i cm. long or less, densely and finely puber- 

 ulent on the back; the free portions lanceolate, ascending, spread- 

 ing, slightly glandular-ciliate; petiole and rachis densely puberu- 

 lent; not at all glandular; leaflets five or seven, elliptic, 2-3 cm. long, 

 acutish at both ends, rather firm, finely puberulent on both sides, 

 densely so, almost velvety, and paler beneath ; flowers corymbose, 

 two to five together; pedicels 1-2 cm. long, glabrous; hypanthium 

 ellipsoid, acute at the base, above produced into a distinct neck, 

 glabrous, in fruit 9-10 mm. thick, 12-14 mm. long, dark-purple; 

 sepals lanceolate, caudate-attenuate, 12-15 mm. long, finely 

 puberulent, in fruit erect and persistent; achenes inserted both in 

 the bottom and on the insides of the hypanthium. 



This is related to R. pisocarpa, R. ultramontana and R. Macounii. 

 The leaves are dark green above, finely toothed with rather blunt 

 teeth and the hypanthium is decidedly ellipsoid, with a neck. 

 The plant is almost unarmed. The type in the Columbia Uni- 

 versity herbarium has no prickles, but the same number in the 

 United States National Herbarium has a single straight prickle 

 about 5 mm. long. This was determined as R. pisocarpa by 

 Crepin. Suksdorf's specimen is unarmed and Sheldon's has only 

 a few prickles. 



California: Siskiyou County, 1882, Pringle (type, in the her- 

 barium, Columbia University); 1910, G. D. Butler 1352; Vicinity 

 of Rawhide, 1905, Roxana Stinchfield 25, in part; near Stirling, 

 191 3, Heller 10801. 



Washington: Klickitat County, 1885, Siiksdorf. 



Oregon: Wallowa River, 1897, Sheldon 868/{?). 



