88 UXXTED STATES AN'D MEXICAN BOUNDARY. 



Hymexoclea moxojyka^ Tott. & Grmj^ Ph Fcndl. p. 79, & PI. Wright, L c. Common on the 

 frontier, from Eagle Pass^ Texas, to Sonora. 



Zinnia texltflora, Jaccj. Ic. Par. 3; t. 590 i Gray^ PL Wright, 2, p, 86. Sonora and Chi- 

 huahua ; Thurher^ Schott, etc. 



Zinnia (Dil^lothkix) aoekosa, Grmj, PL Wright, l,p. 106^ Dry hills^ from Eagle Springs, 

 etc , to El Paso ; Bigeloio^ etc. 



Zinnia (Diplotiirix) grandiflorAj Nattr, Gray, PL Wright, l,p. 105. Sonora, Chihuahua, 

 New Mexico, and W. Texas ; gathered by all the collectors. 



Zinnia (Diplotiirix) pumila. Gray, PI, FendLp, 81, c& PL Wright, L c. Sonora, lower Rio 

 Grande, etc. Intermediate forms appear to connect this with the last. 



Zinnia (Heterogyne) anomala, Gray, L c. t. 10,/. 2. Eagle Pass on the Eio Grande {Bige- 

 loiu) to the San Pedro, Pecos, etc. 



Heliopsis paryifolia, Gi^ay, PL Wright, 2, p. 86. Between Babocomori and Santa Cruz, 



■ 



Sonora; Wright, Thurber. Some of Mr, Thurber's specimens have larger leaves than those of 

 Wright. 



Heliopsis BUPHTUALMOIDES, Dunal, which is also H. canescens, JT. B. K. Between San Ber- 

 nardino and Janos, Chihuahua ; Thurber, 



Halea Texana, Gray, PL FendL p. 83, {fc PL Wright, L c. Gravelly plains, western and 

 southern Texas. 



Lepachys coLUMNARiH, Torr, cC Gray J FL 2,^. 215; & var. pulciierrima. Western Texas to 

 New Mexico. 



Lepachys Tagetes, Gray^ in Bot. WhippL Pep. p, 103. L. columnaris, var.? Tagetes, Gray, 

 PL Wright, L c. Western Texas to El Paso, etc. 



Budbeckia fxjlgida. Ait. Western Texas ; Bigelow. 



Aldama uniserialis, Gray, PL Lindh. 2, p. 228. Southern Texas ; Schott, etc. 

 IIeliomeris multiflora, Natt.; Gray, PL FendL p. 87 ; and var. hispida. Gray, PL Wright, 

 2, p. 87. New Mexico, Sonora. 

 Heliomeris tenuifolia, Gray, L c. From the San Pedro, Western Texas to Sonora, 



Chihuahua, etc. 



RENSI 



DO. Prodr. 5, j^. 593. From the Pecos and Eagle Pass, on the Eio 



Grande, to the Mimbres 



Mesquite bottoms ;" Schc 



ges and 



Ekcelia Californica, Natt. in Trans. Amer. PhiL Soc. 7, p. 357. San Diego, California ; 



Schott. 



Sulph 



banks of the Colorad 



Schott. This must be Bentham's E conspersa ; but the involucre is more* pubescent than he 

 describes, the rays glabrous, and the foliage retains much of the close cinereous pubescence. 

 The heads, also, are quite small. It is probably the same as No. 308, of Coulter's Californian 

 collection. 



Encelia kivea, Benth. L c. E. farinosa, Gray, in Emory P^p. p. 143. On the Gila ; 



jE'wor?/, Parr?/, etc., and the Colorado of the West ; Bigelow. This is the same as Coulter's 



No. 327, and must be Bentham's E. nivea, from Lower California, although the characters do 

 not wholly accord. 



