334 PROCEEDINGS OP THE AMERICAN ACADEMY 



AsriCARPA LONGiPES, Gray. In the San Miguelito Mountains 

 (902 Schaffner). 



Janusia gracilis, Gray. In mountains north of Monclova (126). 



Tribulus maximus, Linn. At Laredo, on the Rio Grande (131), 

 and at Monclova, Coahuila (131"). 



Sericodes Greggii, Gray. The flowers are golden yellow and 

 fragrant. At San Lorenzo de Laguna (63), and at Soledad (321). 



Larrea Mexicana, Moric. A variety with the leaves mostly 

 bifid at the apex. At Saltillo, Coahuila (132). 



Porlieria angustifolia. Gray. At San Antonio, Texas (129), 

 and in the Sierra Madre, south of Saltillo (130) ; 97 Parry & Palmer. 



Geranium Carolinianum, Linn. In the mountains near Penasco, 

 San Luis Potosi (190 Schaffner); 101 Parry & Palmer. Very 

 nearly the usual form of the species, with hairs sometimes spreading, 

 sometimes reflexed. 100 Parry & Palmer (the same as 389 Botteri 

 and 273 Bourgeau), referred to this species, is probably a stout large- 

 leaved form of the next. 



Geranium Mexicanum, HBK. {G. Hernandezii, Engelm. in 

 Gray's PI. Fendl. 27, not DC.) San Rafael Mountains (188 Schaff"- 

 ner). Resembling the last, but with the more divergent lobes of the 

 small leaves less narrowly dissected, hairs reflexed, the pedicels, calyx, 

 and beaks of the fruit glandular-pubescent, and the calyx usually 

 smaller. 



Geranium Hernandezii, DC. In the San Miguelito Mountains 

 (191 Schaffner). Well marked by the deltoid 3-lobed leaves, the 

 long middle lobe lanceolate. 



Geranium Schiedeanum, Cham. & Schlecht., var. More or less 

 sparingly strigose-pubescent, the flowers sometimes yellowish-white. 

 At Lerios, Coahuila (137), and in the San Rafael, San Miguelito, and 

 Escabrillos Mountains (186, 187, 189 Schaffner) ; 99 Parry & 

 Palmer. 



Geranium crenatum. Stems short from a branching rootstock, 

 little exceeding the radical leaves, and with the petioles covered with 

 soft spreading hairs : leaves appressed-pubescent, about an inch broad, 

 reniform-orbicular, about 5-cleft to below the middle, the broad lobes 

 shortly 3-5-cleft at the rounded summit and somewhat crenately 

 toothed : peduncles elongated, 2-o-flowered : calyx and pedicels villous 

 and glandular-pubescent, the sepals (3 or 4 lines long) very shortly 

 cuspidate ; petals rose-color, 8 lines long : fruit erect, an inch in 

 length. — At Lerios, Coahuila (136). The leaves resemble in out- 

 line those of G. molle and G. Pyrenaicum. 



