426 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



KEY TO THE SPECIES. 



Calyx Btrongly accrescent at maturity 1. S. physocalyx. 



Calyx not accrescent. 



Plants erect, not hirsute 2. S. neomexicana. 



Plants prostrate, hirsute 3. S. diffusa. 



1. Sida physocalyx A. Gray, Best. Journ. Nat. Hist. 6: 163. 1850. 

 Type locality: On the Liano, western Texas. 



Range: Texas to Arizona, south into Mexico. 



New Mexico: Organ Mountains; south of Roswell; Lakewood; Tortugas Mountain. 

 Dry hills, in the Upper Sonoran Zone. 



2. Sida neomexicana A. Gray, Proc. Amer. Acad. 22: 296. 1887. 



Type locality: Mountains at the Copper Mines, New Mexico. Type collected by 

 Wright. 



Range: Western Texas to Arizona and adjacent Mexico. 



New Mexico: Santa Rita; Fort Bayard; San Luis Mountains; Organ Mountains. 

 Dry hills, in the Upper Sonoran Zone. 



3. Sida diffusa H. B. K. Nov. Gen. & Sp. 6: 257. 1821. 



Type locality: "Crescit prope Zelaya Mexicanorum, alt. 950 hex." 



Range: Texas and New Mexico to Mexico. 



New Mexico: North Percha Creek; Mangas Springs; Organ Mountains; Tortugas 

 Mountain; between Santa Rita and Mimbres. Dry hills, in the Lower and Upper 

 Sonoran zones. 



13. ANODA Cav. 



Erect annuals 60 to 150 cm. high, with alternate, simple, hastate or deltoid-cordate 

 leaves and solitary axillary flowers, or these becoming somewhat paniculate above 

 by the reduction of the leaves; calyx lobes triangular, spreading, thin; capsules 

 depressed and radiate, of 9 to 20 long-beaked carpels, the flat summit hirsute. 



KEY to the species. 



Corolla lavender; sepals much exceeding the hispid carpels 1. A. lavaterioides. 



Corolla yellow; sepals slightly exceeding the stellate-hirsute 



carpels 2. A., wrightii. 



1. Anoda lavaterioides Medic. Malvenfam. 19. 1787. 

 Type locality: Not stated. 



Range: Western Texas to southern Arizona, south into Mexico and South America. 



New Mexico: Mangas Springs; Kingston; Fort Bayard; San Luis Movm tains; 

 Mesilla Valley; Organ Mountains; WTiite Mountains; Gray; Albuquerque; Belen; 

 Bernalillo; Capitan; Dayton. Open hills, often in cultivated fields, in the Lower 

 and Upper Sonoran zones. 



A common weed in the southern part of the State in fields and orchards, especially 

 in summer after grain crops have been harvested. 



2. Anoda wrightii A. Gray, PI. Wright. 2: 22. 1853. 



Type locality: Summit of moim tains near the Copper Mines, New Mexico. Type 

 collected by Wright (no. 894). 

 Range: Southwestern New Mexico. 

 New Mexico: Hillsboro; Santa Rita. 



