Rydberg: Notes on Rosaceae 169 



32. Rosa Pringlei Rydberg 



See notes, Bull. Torrey Club 44: 79. 191 7. The following 

 specimens are from the region : 



Oregon: Wallowa River, 1897, Sheldon 8687 (?). 



Washington: Klickitat County, 1885, Suksdorf. 



British Columbia: Armstrong Pass, 1912, E. Wilson; Elgin, 

 Miss Edstrom. 



33. Rosa Eastwoodiae Rydberg 



This is related to R. Pringlei but the plant has smaller leaves, 

 smaller flowers and fruit, and is usually prickly. The fruit is 

 only 6-8 mm. in diameter. To this belong: — 



California: Sisson, Siskiyou County, 1912, Eastwood 2100, 

 mainly. 



Oregon: Waldo, Josephine County, 1912, Eastwood 2168. 



IV. GYMNOCARPAE 



Leaves glabrous beneath. 



Flowers mostly 2-4 together, leafy-bracted; upper stipules 

 broadly dilated; leaflets with broadly ovate teeth, in- 

 distinctly reticulate beneath; fruit 6-8 mm. broad. 37. R. dasypoda. 

 Flowers usually solitary, not leafy-bracted; stipules nar- 

 row; leaflets with lanceolate or ovate lanceolate 

 teeth; fruit 6 mm. in diameter or less. 

 Leaves not very thin, pale and indistinctly reticulate 



beneath; sepals 1-1.5 cm. long. 35. R. leucopsis. 



Leaves very thin, scarcely paler on the lower surface, 



which is distinctly reticulate with semi-pellucid 



veinlets; sepals less than 1 cm. long. 



Leaflets 5-7, usually more than 1.5 cm. long; teeth 



ovate-lanceolate in outline; terminal leaflet 



usually rounded at the base. 34. R. gymnocar pa. 



Leaflets 7-9, usually less than 1.5 cm. long, the 

 terminal one usually acute or cuneate at base; 

 teeth lanceolate in outline. 36. R. prionota. 



Leaves pubescent beneath. 38. R. Bridgesii. 



34. Rosa gymnocapra Nutt. 



This species is one of the most common roses in the Columbia 

 region (see my notes, Bull. Torrey Club 44: 82. 1917). As 

 stated there Dr. Greene described twelve species belonging to the 

 group and some of these will be discussed here. 



Rosa glancodermis Greene. Dr. Greene pays especial attention 



