Rydberg: Notes on Rosaceae 81 



thium at least is covered with fine soft hairs. The following 

 belong here: 



California : San Francisco, Z^r. Bolander (type, in the herbarium 

 of Columbia University); Berkeley, Btirt Davy 854; Pine Grove, 

 Amado County, George Hanson 7310; no locality, Kellogg & Harford 

 22s in part; Sierra National Forest, 191 2, Ahrams 4969. 



27. Rosa granulata Greene, Leaflets 2: 262. 1912 



This is closely related to R. spithamaea, but differs in the more 

 glandular leaves and narrow teeth. Perhaps not specifically 

 distinct. It is known only from the type collection at San Luis 

 Obispo. 



28. Rosa spithamaea S. Wats. Bot. Calif. 2: 444. 1880 



This is a rather local species characterized by its almost her- 

 baceous stems, slender prickles and bristly receptacle. 



California: Trinity River, between Hyampore and Hooper, 

 1878-1883, Rattan; Trinity Mountains, Marshall; Lake County, 

 1902, Heller; "California," Torrey. 



Oregon; Wimmer, Hammond 120. 



29. Rosa sonomensis Greene, FI. Franc. 72. 1897 



This is related to R. spithamaea, but differs from the other 

 Californian species with prickly fruit in the firm glaucous leaves 

 the densely prickly stem, and the short sepals. 



California: Petrified Forest, Sonoma County, 1883, Greene; 

 Mount Tamalpais, V. Bailey 531; 1885, Rattan; Converse Basin, 

 Fresno County, 1904, Dudley. 



in. MINUTIFOLIAE, This group is represented by the 

 following species and by two species in New Mexico. 



30. Rosa minutifolia Engelm. in Parry, Bull. Torrey Club 9: 97. 



1882 



This species is a native of Lower California and may be ex- 

 pected in San Diego County, California. 



