574 CONTRIBUTIOISrS FEOM THE NATIONAL HEEBAEIUM. 



9. ANDROCEBA Nutt. Buffalo bur. 



Prickly herb 30 cm. high or less, with spreading branches; leaves once or twice 

 pinnatifid, with broad undulate or sinuate lobes; calyx spreading, 5-lobed, closely 

 investing the fruit; corolla rotate, 5-angled; stamens 5, anthers unequal, tapering 

 upward, opening by terminal pores; berry dry, the seeds flattened. 



KEY TO THE SPECIES. 



Flowers yellow; pubescence stellate 1. A. rostrata. 



Flowers purple; pubescence mostly glandular 2. A. novomexicana. 



1. Androcera rostrata (Dunal) Rydb. Bull. Torrey Club 33: 150. 1906. 

 Solanum rostratum Dunal, Sol. Syn. 234. pi. 24- 1813. 



Solanum heterandrum Pursh, Fl. Amer. Sept. 156. pi. 7. 1814. 



Androcera lohata Nutt. Gen. PI. 1: 129. 1818. 



Type locality: Described from cultivated plants. 



Range: Wyoming and North Dakota to Texas and Mexico. 



New Mexico: Farmington; Santa Fe; Las Vegas; Pecos; Rio Frisco; Kingston; 

 Cliff; Cloverdale; Angus; Roswell; Albert; Elida; Nara Visa. Plains, in the Upper 

 Sonoran Zone. 



2. Androcera novomexicana (Bartlett) Woot. & Standi. Contr. U. S. Nat. Herb. 



16: 170. 1913. 

 Solanum heterodoxum novomexicanum Bartlett, Proc. Amer. Acad. 44: 628. 1909. 

 TiTE locality: New Mexico. Type collected by Fendler (no. 673). 

 Range: New Mexico. 



New Mexico: San Juan; Las Vegas; Pecos; Santa Fe; Fort Bayard; Santa Rita. 

 Plains and low hills, in the Upper Sonoran Zone. 



10. CHAMAESARACHA A. Gray. 



Low, perennial, diffusely spreading herbs with entire or pinnatifid leaves and 

 flowers in axillary few-flowered clusters; calyx campanulate, 5-lobed, somewhat 

 enlarged at maturity, closely investing the fruit, open at the mouth, neither ribbed 

 nor angled; corolla rotate, ochroleucous, often purple-tinged; anthers oblong, open- 

 ing by longitudinal slits; seeds reniform, flattened, rugose-favose or punctate; berry 



pulpy. 



key to the species. 



Plants villous, densely viscid 1. C. conioides. 



Plants sparingly stellate-pubescent, scarcely if at all viscid 2. C. coronopus. 



1. Chamaesaracha conioides (Moric.) Britton, Mem. Torrey Club 6: 287. 1895. 

 Solanum conioides Moric; Dunal in DC. Prodr. 13': 64. 1852. 



Withania ? sordida Dunal, op. cit. 64. 



Chamaesaracha sordida A. Gray in Brewer & Wats. Bot. Calif. 1: 540. 1876. 



Type locality: Between Laredo and San Antonio, Texas. 



Range: California and Kansas to Mexico and Texas. 



New Mexico: Tucumcari; Hatchet Ranch; Kingston; Dog Spring; Organ Moun- 

 tains; Tortugas Mountain; Gray; Knowles; Lincoln; Buchanan; mountains west of 

 San Antonio; Lakewood. Plains and low hills, in the Lower and Upper Sonoran 

 zones. 



2. Chamaesaracha coronopus (Dunal) A. Gray in Brewer & Wats. Bot. Calif. 1: 



540. 1876. 

 Solanum coronopus Dunal in DC. Prodr. 13': 64. 1852. 

 Type locality: Between Laredo and San Antonio, Texas. 

 Range: California, Utah, and Kansas to Mexico. 



New Mexico: Nearly throughout the State. Dry plains and low hills, in the 

 Lower and Upper Sonoran zones. 



