730 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES 
*Flora of Clifton, Arizona. 
By A. Davidson, C.M., M.D. 
ROSACEA 
» Prunus serotina Ehrh. Blue river. 
Spirea discolor dumosa Wats. Coronado Mine. 
Rubus trivialis Michx. Longfellow. 
Cercocarpus betulefolius Nutt. Wood road Metealf. 
Cowiana mexicana Don. Banks of Frisco river. Aug. 
SAXIFRAGACEZ 
Fendleri rupicola Wrightii Gray. Johnson’s ranch. Sept. 
Ribes aureum Pursh. Dunean. April. 
CRASSULACEZ: 
Cotyledon ? Chase Creek. 
Sedum wootoni B. & R. Wood road Metealf. 
LYTHRACEA: 
Lythrum californicum T. & G. Clifton; Dunean. 
ONAGRACEA: 
Lavauxia triloba Spach. Generally distributed. April. 
Oenothera albicaulis Pursh. Guthrie. April. 
Oenothera brevipes Gray. Common. 
Oenothera caespitosa Nutt. Frequent. April. 
Oenothera pallida Lindl. Clfton and Blue river. Summer. 
Oenothera nuttalli T. & G. Common. April. 
Sphaerostigma erythrea Davidson. Common on the slopes of 
the river South of Clifton; the type locality. April. 
Kulobus californicus Nutt. Rare, near Clifton. April. 
Gaura parviflora Dougl. Dunean; Longfellow. Aug. 
Gaura cocinea Nutt. Duncan. May. 
Zauschneria arizonica Davisson.Chase Creek two miles above 
Metealf, the type locality. It is fairly abundant on the moist 
ereek bottom. Sept. 
UMBELLIFERZ 
Leptocaulis echinatus Gray. Frequent. April. 
Peucedanum orientale C. & R. On stony slopes. Type loeali- 
ty North Clifton. Not uncommon. April. 
*OQontinued from Page 36. 
