92 Muhlenbergia, Volume 2 



AESCULACEAE 



Aesculus CAUFORNiCA (Spach) Nutt.; T. & G. Fl. N. A. 1: 

 251. 1838. 



CalothyrsMs Californica Spach, Phaner, 3: 35. 1834. 



No. 7881, collected May 27, on the banks of the Sacra- 

 mento at Redding, Shasta county. This handsome tree is com- 

 mon in the foothills of both the Sierra and the Coast Range. In 

 the Tehachapi mountains it was noticed well up toward the 

 summit, but with smaller leaves than is common in the northern 

 form. 



RHAMNACEAE 



Rhamnus anonaefolia Greene, Pittonia, 3: 16. 1896.? 



No. 7969, collected June 5, along the Sacramento a short 

 distance below Shasta Springs, Siskiyou county. A tall slender 

 shrub perhaps eight feet high, sparingly branched above. This 

 is not typical, the leaves varying somewhat from those of the 

 type which was collected in the "mountains of Placer County." 

 Some botanists would probably refer this to R. purshiana^ but 

 that species in typical form hardly occurs west of the Cascade 

 mountains. Its native place is on the Clearwater river near the 

 mouth of the Potlach, where the writer collected it in 1896. 



Rhamnus rubra Greene, Pittonia, 1: 68. 1887. 



Rhamnus Californica var. rubra Trelease, Trans. St. Louis 

 Acad. 5: 367. 



No. 8087, collected June 22, near Igerna, Siskiyou county, 

 elevation about 3800 feet. It is a handsome little shrub, and 

 was at once recognized as distinct from any species known to 

 the writer. It was first noticed along the Sacramento near 

 Shasta Retreat, elevation 2400 feet. The type came from near 

 Truckee, Nevada county, on the eastern side of the Sierra, ele- 

 vation' 6000 feet, and one would not expect it to occur about the 

 headwaters of the Sacramento, but these specimens resemble the 

 type very closely. 



