360 PRQCEEDINGS OF THE AMERICAN ACADEMY 



Sechiopsis triquetra, Naud. In the Cerro del Cuarto, near 

 Guanajuato (Duges). 



Mamillakia conoidea, DC. At Saltillo (378), 



Mamillaria micromeris, Engelm. At Saltillo. 



Mamillaria radians, DC. In the mountains west of Saltillo. 

 Several other undetermined species were sparingly collected. 



EcHiNOCACTUs LONGEHAMATUS, Gal. At SaltiUo (373, 374). 



EciiiNOCACTDS piLOSDS, Gal. In the mountains east of Saltillo 

 (375). 



EcHiNOCACTus HORizoNTHALONius, Lam. At Saltillo (380). 



li^CHiNOCACTUs BicoLOR, Gal. (?) At Saltillo (379). 



Cereus cinerascens, DC. At San Lorenzo de Laguna (368, 369), 

 Parras (370, 371), and Saltillo (372), some with larger spines than 

 any described ; 368 is doubtful ; 277 Parry & Palmer. 



Opuntia Kleini^, DC. At San Lorenzo de Laguna (376). 



Opuntia imbricata, DC. At Parras (377). 



MoLLUGO Cerviana, Ser. At Blufftou, Texas (381). This 

 species has been recently collected also in New Mexico and Arizona. 



MoLLUGO verticillata, Linn. Western Texas (382) ; San Luis 

 Potosi (118 Schaffner) ; 283. Parry & Palmer. 



Glinus Cambessidesii, Fenzl. At San Lorenzo de Laguna 

 (72). With smaller flowers and much smaller seeds and generally 

 less pubescent than G. lotoides of the Old World, to which the Mexi- 

 can specimens are referred by Ilemsley. The strophiolate seeds with 

 elongated funicles, together with some peculiarities of habit, rather 

 justify the retention of the genus. 



Hydrocotyle prolifera, Kellogg. At Georgetown, Texas 

 (383). The same as 107 Coulter and 1068 Parry & Palmer (re- 

 ferred to H. mterrvpta), and 480 Bourgeau. 



Eryngium nasturtiifolium, Juss. At San Lorenzo de Laguna 

 (384) ; 1112 Parry & Palmer. 



Eryngium Deppeantoi, Cham. & Schlecht. In woods near Mo- 

 rales (7 Schaffner) ; 285 Parry & Palmer, referred to £J. aquaticum, 

 Linn. 



Eryngium serratum, Cav. On rocks, near Morales (8 Schaffner), 

 and at Guanajuato (Duges) ; 284 Parry & Palmer. Known as 

 " Yerba del sapo." 



Eryngium yucc^folium, Michx., var. (?) Basal leaves short 

 and narrow, margined with long sliglitly rigid seta; : rays slender and 

 elongated, erect : heads small ; floral bracts puberuleut. — In the 

 Caracol Mountains, southeast of Monclova (417). 



