576 MISC. PUBLICATION 42 3, U. S. DEPT. OF AGRICULTURE 



The fruits are extensively parasitized by insects and the seeds seldom 

 mature. Known, in New Mexico, as "meloncilla." Often a trouble- 

 some weed on heavy soils. 



3. Sida lepidota A. Gray, PL Wright. 1: 18. 1852. 



Disella lepidota Greene, Leaflets 1: 209. 1906. 



Mohave, Yavapai, Pinal, Maricopa, Cochise, and Pima Counties, 

 1,000 to 6,000 feet, roadsides, March to October. Western Texas and 

 southern Colorado to Arizona and Mexico. 



The typical form, with triangular-ovate, dentate, not or barely 

 hastate leaf blades, has been collected at Deer Spring (Rothrock 188) 

 and in the Chiricahua Mountains (Blumer 1689). The var. sagittae- 

 folia A. Gray (Disella sagittaefolia Greene) is much more common in 

 Arizona. It has lanceolate or oblong-lanceolate, asymmetrically 

 hastate or subsagittate leaf blades, with 1 to 3 pairs of teeth near the 

 base, the margins otherwise entire or nearly so. 



4. Sida diffusa H. B. K., Nov. Gen. et Sp. 5: 257. 1822. 

 Greenlee, Gila, Pinal, Cochise, Santa Cruz, and Pima Counties, 



2,500 to 5,500 feet, common on plains and mesas in dry sandy soils, 

 April to October. Western Texas to Arizona and Mexico. 



Perhaps not specifically distinct from S. procumbens Swartz, a 

 widely distributed plant of tropical and subtropical America. 



5. Sida neomexicana A. Grav, Amer. Acad. Arts and Sci. Proc. 22: 



296. 1887. 

 Cochise, Santa Cruz, and Pima Counties, 4,000 to 6,000 feet, plains 

 in the open and in partially shaded canyons, September to October. 

 Western Texas to southern Arizona and Mexico. 



6. Sida angustifolia Lam., Encycl. 1: 4. 1783. 



Sida spinosa L. var. angustifolia Griseb., Fl. Brit. West Indies. 

 74. 1859. 



Nogales, Santa Cruz County {Peebles et al. 4712), Santa Rita 

 Mountains, Pima County (Wooton in 1911 and 1913), about 4,000 

 feet, dry, sandy plains. Southern and western Texas to southern 

 Arizona and tropical America. 



Identification of the Arizona plant as Lamarck's species is perhaps 

 questionable. Mexican specimens are mostly perennial, 



7. Sida tragiaefolia A. Gray, Boston Jour. Nat. Hist. 6: 164. 1850. 

 Pima County, at Tucson (G. A. Wilcox in 1905) and in the Santa 



Catalina Mountains, 2,500 to 3,500 feet, dry, rocky slopes (Pringle 

 in 1884, Peebles et al. 1428, etc.), late summer and autumn. Western 

 Texas, southern Arizona, and northeastern Mexico. 



9. ANODA84 



Plants sparsely hirsute to densely puberulent or tomentose; leaf 

 blades, especially the upper ones, often hastate at base; involucel none; 

 fruit depressed, hemispheric or disklike; carpels usually umbonate or 

 spurred on the back, with fragile lateral walls, these usually breaking 

 up before maturity, the inner layer forming a saclike envelope of the 



m Reference: Hochreutiner, B. P. G. monographia generis anodae. Conserv. et Jard. Bot. 

 Geneve Ann. 20: 29-68. 1916. 



