OF ARTS AND SCIENCES. 105 



Zinnia anomala, Gray. Sierra Madre, south of Saltillo (581). 



Sanvitalia angustifolia, Engelm. At Parras (591), and a form 

 with the chaff of the receptacle more cuspidate, at Saltillo (588). 



Heliopsis parvifolia, Gray, a cinereous form. In the moun- 

 tains east of Saltillo (586). 



EcLiPTA ALBA, Hassk. {E. erecta and E. prostrate, Linn.) In 

 Western Texas (582). 



Zaluzania triloba, Pers. At Parras, Coahuila (592). 



Zaluzania megacephala, Schultz Bip. (?) But quite different 

 from Z. angusta, and the rays inclined to be sterile. Pubescence of 

 inflorescence and lower surface of the upper leaves aurate, as noted by 

 Palmer. In the Sierra Madre, south of Saltillo (734). 



Varilla Mextcana, Gray. At Parras, Coahuila (680). 



Varilla Texana, Gray. At Eagle Pass, Texas (739). 



Gymnolojiia tenuifolia, Benth. & Hook. At Parras and other 

 Mexican localities (620, 621, 622, 623). 



Sclerocarpus uniserialis, Benth. & Hook. In Western Texas 

 (593, 594, 595), and Mexico (596). 



Tetragonotheca Texana, Engelm. & Gray. In Western Texas 

 (583), at Soledad (2065), and mountains north of Monclova (559). 



Tetragonotheca Ludoviciana, Gray, var. repanda, Gray. 

 West of San Antonio, Texas (560, 609). 



BoRRiCHiA frutescens, DC. In Western Texas (587). 



Zexhenia brevifolia, Gray. At Eagle Pass, Texas (624), and 

 at Soledad, Coahuila (625). 



Zexmenia hispid a, Gray. (Z. Texana, Gray.) In Western Texas 

 (630), and at Soledad (631). 



Lepachys peddncularis, Torr. & Gray. Western Texas (718). 

 A small form. 



Lepachys columnaris, Torr. & Gray. Western Texas (719). 

 Also var. pulcherrima, Torr. & Gray, in Texas (720, 2085), and 

 Mexico, a small and slender form (717). 



ViGuiERA HELiANTHOiDES, HBK., var. ( V. loxa, DC. V. Tex- 

 ana, Torr. & Gray.) Western Texas (603, 604), and in Mexico, a 

 narrow-leaved form (614). The last is V. hrevipes, DC. 



YiGUiERA CAXESCENS, DC. At San Lorenzo de Laguna, Coa- 

 huila (618). 



ViGUiERA LINEARIS, Scbultz Bip. (Leigfiia linearis, DC) In 

 Mexico (626). 



Helianthus annuus, Linn. (H. lenticularis, Dougl.) In Mex- 

 ico (600), and a depauperate form (2070). 



