154 PROCEEDINGS OP THE AMERICAN ACADEMY 



AcALYPHA PHLEOiDES, Cav. At Saltillo (1251), uud in the Sau 

 Miguelito Mountains, San Luis Potosi (33 Schaffiier). 



AcALYPiiA LiNDHEiMERi, Muell. Arg. At Moudova, Coahuila ; 

 826 and 826^- Parry & Palmer, referred to the last s|)ecies. 



AcALYPHA RADIANS, Torr. West of San Antonio, Texas (1253). 



AcALYiTiA ANEMioiDES, HBK. At San Luis Potosi (31 SchafE- 

 ner) ; 825 Parry & Palmer. 



AcALYPiiA Neo-Mexicana, Muell. Arg. At San Luis Potosi 

 (32 Schaffner) ; 737 Parry & Palmer, referred to A. Virghiica, 

 which probably does not occur in Mexico. 



AcALYPHA VAGANS, Cav., var. GLANDDLOSA, Muell. Arg. At San 

 Luis Potosi (34 Schaffner). Quite variable. Probably the same as 

 the plant thus referred by Mueller, but apparently as distinct from 

 Cavauilles' species as several of the species of this group in the Pro- 

 dromus. 



Tragia nepet^folia, Cav. At Monterey, Nuevo Leon. — Also 

 a variety with only sinuate leaves, rarely toothed toward tlie base, 

 with a deep sinus and rounded basal lobes ; at Laredo, on the Rio 

 Grande (1254). — Also var. (?) angustifolia, Muell. Arg. ; at Suth- 

 erland Springs, Texas (2057). The narrow leaves are nearly sessile 

 (as in Berlandier's specimen). 



Tragia urtic^folia, Michx. At Guanajuato (Duges), where it 

 is known as " Ortiguilla " ; 827 Parry & Palmer, referred to A. stylaris. 

 It is not easy to clearly separate this species (from which A. macrocarpa, 

 Willd., is certainly distinct) from the last. 



Stillingia sanguinolenta, Muell. Arg., var. angustifolia, 

 Muell. At Guajuco, Nuevo Leon (1255) ; referred by Ilemsley to 

 S. sylvatica. With starainate flowers only, and many of the leaves 

 alternate. 



Stillingia angustifolia, Engelm. in herb. {S. sylvatica, vars. 

 angustifolia and linearifolia, Muell. Arg.) Distinguished from 

 S. sylvatica by the narrowly linear very acute leaves, the somewhat 

 smaller capsule with flatter gynobase, and the quite smooth seed. — 

 At Sutherland Springs, Texas (1256). 



Stillingia Torreyana, Watson. Apparently perennial. It is 



nearly certain that Sebastiuna Treculiana, Muell. Arg., is not distinct. 



At Eagle Pass, Texas (1257), and at Monterey, Nuevo Leon (1258). 



Callitriche Austini, Engelm. Near Morales, San Luis Potosi 



(123" Scliaff"ner, in part). 



Callitriche iieterophylla, Pursh. With the last, and under 

 the same number. 



