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



1. Margaranthus lemmoni A. Gray, Amer. Acad. Arts and Sci. Proc. 



19: 91. 1883. 

 Known only from the type collection in the Huachuca Mountains, 

 Cochise County (Lemmon 2847) , September. 



2. Margaranthus solanaceus Schlecht., Index Sem. Hort. Hal. 1838; 



Linnaea 13: Litt. 99. 1839. 



Yavapai and Gila Counties to Cochise, Santa Cruz, and Pima 

 Counties, 3,500 to 5,500 feet, rich soiHn shade, August and Septem- 

 ber. New Mexico, Arizona, and Mexico. 



3. CHAMAESARACHA 



Low perennial herbs ; stems leafy, decumbent or prostrate, branched ; 

 flowers axillary, solitary on slender pedicels, these recurved or reflexed 

 in fruit; corolla rotate; berry closely invested but not hidden by the 

 calyx. 



Key to the species 



1. Herbage scurfy (very sparsely so when mature) with short, fiat, white, mostly 

 stellate hairs (these often stalked below the rays), not viscid; leaves mostly 

 sessile or subsessile, the blades oblong-lanceolate to linear, nearly entire 

 to (commonly) laciniate-pinnatifid; corolla greenish white or tinged with 

 purple, with large, cushionlike appendages nearly filling the throat. 



1. C. CORONOPUS. 



1. Herbage villous with long, slender, weak, simple hairs, also densely viscid- 

 puberulent; leaves mostly distinctly petioled, the blades oblong-lanceolate, 

 ovate, oblanceolate, or obovate-spatulate, repand to incisely pinnatifid, 

 the lobes sometimes incised; corolla pale yellow or purplish, with relatively 

 small and flat appendages not filling the throat 2. C. conioides. 



1. Chamaesaracha coronopus (Dunal) A. Gray, Bot. Calif. 1: 540. 



1876. 



Solanum coronopus Dunal in DC, Prodr. 13 *: 64. 1852. 



Apache, Navajo, and Coconino Counties, south to Cochise and 

 Pima Counties, 2,500 to 7,500 feet, dry plains and mesas, April to 

 September. Kansas to Utah, south to northern Mexico. 



The berries are eaten by the Navajo and Hopi Indians. 



2. Chamaesaracha conioides (Moric.) Britton, Torrey Bot. Club 



Mem. 5: 287. 1895. 



Solanum conioides Moric. ex Dunal in DC, Prodr. 13 *: 64. 



1852. 



Cochise and Pima Counties, 3,500 to 5,500 feet, dry plains and 

 mesas, often on limestone, March to October. Kansas and Colorado 

 to southeastern Arizona and northern Mexico. 



4. PHYSALIS. 36 Groundcherry 



Annual or perennial herbs (rarely suffrutescent) ; stems branched, 

 leafy; flowers solitary, on lateral peduncles; calyx 5-toothed or 5-cleft, 

 becoming greatly enlarged, papery, veiny; berry globose, many- 

 seeded ; seeds flat. 



The berries are more or less edible and are sometimes used in making 

 ^reserves. The Indians ate them, both raw and cooked. Two Old 

 World species, the strawberry groundcherry (P. alkekengi) and the 

 lantern groundcherry (P '. franchetii) are often grown as ornamentals. 



36 Reference: Rydberg, P. A. the north American species of physalis and related genera. 

 Torrey Bot. Club Mem. 4: 297-372. 1896. 



