NO. 2 gentry: LAND PLANTS 153 



Opuntia Burrageana Brit. & Rose, Cactaceae 1 :70. 1919. 



San Gabriel Bay, Espiritu Santo Island, March 7, Rempel 80, 

 round-jointed Opuntia in cactus-scrub. Fraile Bay, April 4, Rempel 319 

 (flowering). Puerto Escondido, ]\Iarch 13 (flowering), Rempel 142, 

 alluvial fan; February" 11, Daivson sine no. (sterile). 



The collections from Puerto Escondido are doubtfully referred here. 

 They are atypical of the species in the elongate slender joints and with 

 more prominent tubercles. The ovaries have numerous, acicular, yellow- 

 ish spines about 1 cm long that deciduate soon after anthesis on the 

 growing ovar}'. The specimens also suggest O. ciribe, but are scarcely 

 consepecific. Typical O. Burrageana is recognized as ranging through- 

 out the Cape District and on the adjacent islands as far north as Car- 

 men. It may be a postinsular endemic of the Cape District. O. ciribe 

 distribution is thought to be only in the central part of the peninsula 

 from the vicinity of Santa Rosalia south to the vicinity of Comondu. 

 It is apparent that there is a complex of cylindropuntia species in the 

 central part of the peninsula in marked need of field work and taxonomic 

 study. 



Opuntia aff. clavellina Engelm., in Coulter, C.N.H. 3:444. 

 1896. 



Patos Island, IVIarch 26, Re?npel 290. San Pedro Nolasco Island. 

 March 29, Rempel 304. South end of Tiburon Island, March 27, Rem- 

 pel 292. All specimens sterile. 



Typical O. clavellina is known only along the outer peninsula coast; 

 type from near Purissima (see Map 2). The rather short thickish joints 

 with prominent paper>^-sheathed spines of the above collections indicate a 

 close but scarcely specific relationship. 



Opuntia comonduensis (Coult.) Brit, k Rose, Smith. ]Misc. Coll. 

 50:519. 1908. 



San Gabriel Bay, Espiritu Santo Island, March 7, Rempel 82 

 (sterile). Fraile Bay, Baja California, April 4, Rempel 320 (sterile). 



Southern Baja California and the adjacent island of Espiritu Santo 

 and probably others; type from Comondu, Baja California. Little is 

 known of the actual habitat and range of this platyopuntia and the above 

 collections extend the known range southward and to Espiritu Santo 

 Island. Johnston (Proc. Calif. Acad. Sci. IV, 12:1116. 1924) reported 

 observing it on all of the southern gulf islands except Catalina, stating 

 that it was the only plat3'opuntia observed on these islands. The small 

 oval joints, the remote prominent areoles, and the 1 or 2 long porrect 



