152 CALIFORNIA ACADEMY OF SCIENCES. 



Parkinsonia FLORIDA (Beiitii.) Probably this species, 

 but the material is very scanty. The young branches are 

 pubescent, leaflets 5-8 mm. long, and pods often somewhat 

 falcate. — San Raimundo, San Gregorio. 



Cassia Ootesii Gray. — San Gregorio. 



Cassia occidentalis L. A small l)usli growing about a 

 dwelling, and probably not native. 



Prosopfs Palmeri Watson. "Palo de hierro." A small 

 tree, 10 feet high, with spreading top, dark roughened bark 

 and a trunk 6-10 inches in diameter: legumes pubescent, 

 2-3 inches long, half - inch wdde, slightly curved, 8-12 

 seeded: immature seeds slightly flattened, oblong, reticu- 

 lated, cotyledons yellow, with a triangular notch at base 

 filled by the short rhomboidal radicle. — Abundant on the 

 high, rocky mesas near Purisima and Comondu. 



Prosopis juliflora DC. — San Gregorio to San Fernando. 



Desmanthus virgatus Willd. The plant so named by 

 Bentham in Bot. Sulph. It is commonly a small bush, 

 sometimes on ocean slopes prostrated by the wind, and 

 rarely, in favorable localities, assuming a tree-like forni, 

 and reaching a height of five feet. Concave glands are 

 found often between all the pinnae but sometimes only be- 

 tween the lowest ones. The legumes are 1-3 inches long, 

 6 mm. wide, seeds flattened, smooth, nearly orbicular, 

 attached by a very slender tortuous funicle and marked on 

 each side by a semi-circular line. — Magdalena and Santa 

 Margarita Islands. 



Desmanthus. sp. Near the preceding, glabrous, virgate, 

 2 feet high, seeds covered with a loose gray scurf, and 

 marked by a semi-circular line as in the preceding: legumes 

 3-4 inches long, straight, 6 mm. wide. — Comonda. 



Mimosa, sp. — Purisima. 



