OF ARTS AND SCIENCES. 131 



BuCHNERA PILOSA, Bentli. (?) Near San Luis Potosi (Schaffner, 

 with the last, without number). Lower and more slender than the 

 last (4 to 7 inches high), pilose throughout, and with shorter calyx 

 and corolla, the capsule 2 lines long. This may not be the plant to 

 which the name was originally applied, and which was later referred 

 by Bentham to B. lithospermifolia, but the pilose pubescence is charac- 

 teristic. 



Seymeria bipinnatisecta. Seem. Caracol Mountains (989). 



Sevmeria viRGATA.Renth. In the San Miguelito Mountains, San 

 Luis Potosi (735 Schaffner) ; 682 Parry & Palmer. 



Gerakdia (Dasystoma) Greggii. Pubescent with very short 

 stiff spreading glandular hairs: leaves small (an inch long or less), 

 sessile, ovate, coarsely and acutely toothed, somewhat hastately lobed 

 at base : pedicels exceeding the leaves, curved, ascending : calyx-lobes 

 lanceolate, acuminate, equalling or exceeding the tube ; corolla pubes- 

 cent, "dark buff," an inch long. — In the Sierra Madre, south of Sal- 

 tillo (2024), very scanty specimens; collected also by Dr. Gregg (81). 

 Allied to G. pedicularia ; referred to G. grandijlora by Hemslev. 



Gerardia peduncularis, Benth. At San Luis Potosi (755 

 Schaffner) ; 670 Parry & Palmer. 



Castilleia lanata, Gray. At Saltillo, Coahuila (990) ; 689 

 Parry & Palmer. 



Castilleia tenuiflora, Benth. In the mountains east of Saltillo 

 (991), and in the San Miguelito Mountains, San Luis Potosi (740 

 Schaffner) ; 692 Parry & Palmer. 



CoNOPHOLis Mexicana, Gray in herb. Distinguished from C. 

 Americana by its longer and more rigid lanceolate acuminate scales, 

 the calyx less deeply toothed, and the corolla larger (8 lines lono-). — 

 In the Sierra Madre, south of Saltillo (996), and at Soledad, Coahuila, 

 growing at the foot of oaks ; 693 Parry & Palmer. It has been 

 previously collected in New Mexico in the Organ Mountains (1461 

 Wright), and in the Santa Magdalena Mountains (G. R. Vasey), and 

 in the mountains of Arizona (Rusby), and it is probably the more 

 common species in Mexico. The plant figured by Endliclier (Iconogr. 

 t. 81) for G. Americana is G. Mexicana, probably from Andrieux's 

 collection. 



Castilleia sessiliflora, Pursh. In the mountains east of Sal- 

 tillo (993), and in the Sierra Madre, south of that place (992). 



Castilleia scorzoner^folia, HBK. At Lerios in the high 

 mountains east of Saltillo (2026), a tall and nearly the typical form, 

 and the same as 107 Gregg; 690 Parry & Palmer is probably the 



