NO. 2 GENTRY : LAND PLANTS 141 



BUXACEAE 



SiMMONDSiA CHiNENSis (Link) Schneid., Handb. Laubholzk. 2: 

 141. 1907. 



San Carlos Bay, Sonora, February 8, Dawson 1056. San Gabriel 

 Bay, Espiritu Santo Island, March 7, Rempel 95. 



Southern Sonora, southern California, Sonora, and Baja California. 

 It is a characteristic shrub of the arid rocky slopes in the California Gulf 

 Region, occurring usually in widely scattered stands. It is not known 

 south of the Rio Yaqui and the above collection from Sonora is near the 

 southern limits of the species on the mainland. 



Anacardiaceae 



Cyrtocarpa edulis (Brge.) Standi., C.N.H. 23:659. 1923. 



Tapirira edulis Brge., Zoe 5:78. 1900. 



Cabeza Ballena, March 3, Rempel 56. San Gabriel Bay, Espiritu 

 Santo Island, March 7, Rempel 89, up to 12 feet high in Cactus scrub. 



Known only from the Cape District and adjacent islands. This is a 

 thick-stemmed Bursera-like tree with smooth yellowish bark that peels 

 ofi perennially in thin sheets. The above cited specimens are sterile and 

 the leaves are the small drought-pauperized ones of the arid spring. 

 It is widely and naturally spread in the Cape District and also occasion- 

 ally planted by the inhabitants for its edible plum-like fruits. It appears 

 to be a postinsular endemic, since it is quite distinct from its only near 

 relative, C. procera of the Mexican mainland. However, little is known 

 of the ecology of the plant. There is the possibility that it was intro- 

 duced to the peninsula by early man. 

 Pachycormus discolor var. pubescens (Wats.) Gentry new comb. 



Schinus discolor Benth., Bot. Voy. Sulph. 11, pi. 9. 1844. 



Pachycormus discolor (Benth.) Cov., Cent. Diet. rev. ed. 6708. 

 1911. 



Bursera pubescens Wats., Proc. Am. Acad Sci. 24:44. 1889. 



Veatchia discolor Brge., Proc. Calif. Acad. Sci. II, 2:140. 1889. 



Veatchia discolor pubescens (Wats.) Jtn., Proc. Calif. Acad. Sci. IV, 

 12:1079. 1924. 



Puerto Refugio, Angel de la Guardia Island, January 26, Dawson 

 1025 (sterile). March 20, Rempel 273. 



A low, sprawling, openly crowned, sarcophytic tree with massive 

 trunk and branches, endemic to and characteristic of the arid peninsula 

 about Los Angeles Bay and the adjacent Angel de la Guardia Island, 

 the type locality. The above cited specimens are sterile, but the smaU 



