OP ARTS AND SCIENCES. 117 



Erythr^a calycosa, Buckl. At Parras, Coahuila (838). With 

 rather small flowers; the same as collected by Gregg between Mapimi 

 and Guajugiiilla. 



Erytiir.ea ? At Guanajuato (Duges). With the compact 



cymes of E. tricantha, but with very much smaller seeds. Probably 

 an uudescribed species, but the specimens are incomplete. 



EusTOMA EXALTATUM, Griseb. At Laredo, on the Rio Grande 

 (840), and at Parrasj Coahuila (8-41). 



Gentiana lanceolata, Griseb. At Guanajuato (Duges). 



Gentiana spathacea, IIBK. At Guanajuato (Duges), known 

 as " Yelera"; 599 Parry & Palmer. 



Halenia Rothrockii, Gray. In the Sierra Madre, south of Sal- 

 tillo (839). 



Phlox Drummondii, Hook. Near San Antonio, Texas (844). 



GiLiA rigidula, Benth. At Parras, Coahuila (843). Also a 

 smaller-flowered form, glandular-pubescent, with the lobes of the 

 leaves all very narrow ; at Sutherland Springs, Texas (1185), and at 

 Soledad (845); 605 Parry & Palmer, nearly the same. — Var. ace- 

 ROSA, Gray. At Saltillo (842). 



GiLiA incisa, Benth. At San Antonio, Texas (846), in the Cara- 

 col Mountains, Coahuila (2107), at Monterey (847) and at Guajuco, 

 Nuevo Leon; 601 Parry & Palmer. 



GiLiA AGGREGATA, Spreng. In the high mountains at Lerios. 



Lceselia cerulea, Don. At Parras, Coahuila (2041), at Mon- 

 terey, Nuevo Leon (848), and near San Luis Potosi (639 Schaffner) ; 

 603 Parry & Palmer. 



Lceselia coccinea, DC. In the mountains near San Luis Potosi 

 (638 Schaffiier) ; 604 Parry & Palmer. 



Lceselia glandulosa, Don. At Guanajuato (Duges) ; the typi- 

 cal form. 



Lceselia Greggii. Erect, branching below, pubescent: leaves 

 opposite, the upper sometimes alternate, lanceolate, sessile or nearly 

 so, fc to 1 inch long, acute, serrate, the teeth awned : floral bracts 

 broadly ovate or the inner lanceolate, mostly scarious, coarsely serrate 

 and the teeth setosely tipped, not ciliate, nearly glabrous : calyx-lobes 

 lanceolate, acuminate, lacerate ; corolla 6 lines long, pink with white 

 centre. — At Saltillo, Coahuila (1063), and also collected by Dr. 

 Gregg (360). Allied to L. ciliata, Linn., which appears to include 

 L. iiivolucrata, Don (702 Parry & Palmer). 



Puacelia congesta. Hook. At Monterey, Nuevo Leon (2028), 

 and a very hispid form from Corpus Christi, Texas (849). 



