FLORA OF THE CAPE REGION. 169 



form and probably from the same place, as there are in the 

 Herbarium of the California Academy a very consider- 

 able number of fragments of plants, some with and 

 some without labels, collected by W. J. Fisher and 

 others, from San Jose del Cabo, Tres Marias and various 

 other little known places on the western coast of Mexico. 

 E. biserrata Millsp. Zoe, i, 347, cannot be considered 

 an3^thing more than a more glabrous variety at the north- 

 ern limit of the species. Bentham notes, in the original 

 description, that the leaves are " subsessiHbus," " mar- 

 gine cartalagineo in^qualiter vel subduplicato-dentata." 

 The flowers are solitary in the axils of the upper leaves 

 of the branchlets. The seeds are white when dry, 

 exactly the same in both forms, a very faint tinge of 

 salmon showing throusfh, but when wet the salmon color 

 is pronounced. The leaves of the glabrous form have 

 petioles perhaps a little longer, though this is more ap- 

 parent than real, and due to 1?he absence of the spreading 

 tomentum; the division of the styles and the margin of 

 the appendages is variable as in the type. 



The species, both forms, grows in the clean sand of 

 the seashore, never at any distance from it, and is un- 

 doubtedly perennial. The leaves even of the main stems 

 are often imbricated, the nodes much shorter than the 

 leaves, while in other plants growing beside them they 

 may be three times as long and of quite a different ap- 

 pearance. The leaves in both forms have the obliquity of 

 the base characteristic of the section Anisophyllum, 

 the stipules variable and apparently unlike on the opposite 

 sides of the stem. 



519. Euphorbia Xanti, Engelm. — San Jose del 

 Cabo, Todos Santos, La Paz. 



520. Euphorbia polycarpa Benth. — San Jose del 

 Cabo. 



•iD Ski;., Vol. HI. ( 13 ) August M, 1891. 



