288 Muhlenbergia, Volume 2 



pulling up readily, the plants only lightly imbedded in the soil. 

 The short pedicels and truncate calyx distinguish this from L. 

 affinis^ which grows along the same road in Hall's valley and 

 near Grand View. 



Thkrofon circinnatum Rosend. & Rydb. N. A. Fl. 33: 124. 

 1905. 

 No. 8545, collected May 18, on Stevens creek near Soda 

 Rock, Santa Clara county, elevation about 800 feet in wet clayey 

 soil under an overhanging bank, rather plentiful. The leaves 

 of the original, collected on rocky banks of streams, Santa Cruz, 

 California, in 1882, by C. G. Pringle, are "rather firm," while in 

 our plant they are thin, bright green. 



ROSACEA E B. Ju.s.s. Hort. Trian. 1759. 

 Argentina anserina (L.) Rydb. Mem. Dep. Bot. Col. Univ. 

 3: 159. 1898. 



Potentilla aiiscriiia L. Sp. PI. 495. 1753. 



Potentilla Pacifica Howell, Fl. N. W. Am. 179. 1898. 



No. 8441, collected April 20, in low marshy places near 

 Lake Merced, San Mateo county, elevation about 200 feet. The 

 type is European, but the species is widely distributed in the 

 United vStates. It is found quite generally from the Rocky 

 mountains westward, and on the Atlantic coast ranges as far 

 south as New Jersey and Pennsylvania, appearing again in the 

 region of the great lakes, but is not found within tlie limits r f 

 Small's Flora of the Southeastern United States. 



Drymocallis glandulosa (Lindl.) Rydb. 



No. 8532, collected May 10, at Smith Creek, at the foot of 

 Mt. Hamilton, Santa Clara county, elevation 2100 feet, where it 

 was found in grassy places on the edge of the woods. It usually 

 grows in clumps, a number of stems from a thick root, and is 

 common in the coast region. 



