NO. 2 gentry; land J^lants 143 



Karwinskia Humboltiana (Zucc.) R. & S., Abh. Akad. Wfss. 

 Muchen 2:351. 1832. 



Cabeza Ballena, Cape District, March 3, Rempel 69. 



The species as now known includes several variants which range 

 over Mexico and southwestern Texas. The peninsular population exists 

 in the Cape District and along the Sierra Giganta scarp, mainly in the 

 wetter canyons and northern slopes, and is not readily separable from 

 some of the populations of northwestern Mexico. 



Malvaceae 



Abutilon californicum Benth., Bot. Voy. Sulph. 8. 1844. 



Puerto Escondido, February 11, Dawson 1086. 



West coast of Mexico from Baja California and Sonora south to 

 Oaxaca; type from Magdalena Bay, Baja California. 



Abutilon crispum (L.) Sweet, Hort. Brit. 53. 1827. 



San Jose del Cabo, February 17, Dawson 1226. 



In open situations from southern Arizona south to Central America. 

 A decumbent perennial herb with inflated fruits; the present specimen 

 with remote, cordate, acuminate, and characteristically gray canescent 

 leaves, the pale petals marked with bright carmine in the base. 



Abutilon incanum (Link) Sweet, Hort. Brit. SZ. 1827. 



San Jose del Cabo, February 17, Dawson 1210. San Carlos Bay, 

 Sonora, February 8, Dawson 1066. 



Widely distributed as a wayside and fallow-land weed in north- 

 western Mexico; also reported in Hawaii. It is a bushy perennial 1 to 

 2 m high with rather strictly ascending branches. The yellow petals are 

 carmine spotted within and reflexed at anthesis, closing at night. 



GossYPiUM Davidsonii Kell., Proc. Calif. Acad. Sci. I, 5:82. 1873. 

 San Jose del Cabo, February 17, Dawson 1197. 

 Southern Baja California; type from San Jose del Cabo. Rarely col- 

 lected. 



Hibiscus denudatus Benth., Bot. Voy. Sulph. 7, pi. 3. 1844. 



West Cove in Concepcion Bay, March 15, Rempel 176, hill slope of 

 west exposure. Guaymas, Sonora, January 23, Dawson 1006. 



The more arid situations in northwestern Mexico and western Texas 

 to southern Arizona in the United States. It appears to be quite generally 

 scattered through the California Gulf Region. At best it forms a low 

 open suffrutescent bush, the young branches are densely yellowish tomen- 



