48 UNITED STATES AND MEXICAN BOUNDARY. 



the base. We tliink this can hardly be S. racemosa; nor can we refer it to any described species 

 of Serjania. The leaves in all our specimens are pinnate^ and the pinnae trifoliate. 



Urvillea Mexican A, Gray^ L c. (adnot.) Rich soil, among rocks. Monterey , NeiivoLeon, 

 Thurher, It was found some years before, in the same place, by Dr. Gregg, Dr. Edwards, and 

 Major Eaton. Taurailapas ; Berlandier^ ^o. 2269. 



* 



DoDONJ^.A ScHEiDiANA, ScJilecIit. in Linnoea. 18, p. 49. In various parts of Sonora ; Thurher^ 

 Schott. 



* 



^scuLUS Californica, Nutt. in Torr. d Grmj, Fl. 1, p. 251, & Sylva, 2, ^. 69, t. 74. Newberry, 

 Bot. Williamson in Facif. R Road Expl, 6, j9, 21, fg. 1. Near Monterey and San Luis Obispo, 

 California, May ; Farry. 



Ungnadia SPECIOSA, Endl. Ataht. t. 36 ; Gray, Gen. III. 2, t. 178 (k 179. Dry ravines, Organ 

 mountains of New Mexico, March — April ; Bigeloiu. Hueco mountains, Texas ; Thurher. 



MALPIGHIACE^. 



Galphimia linifolia, Gray, Gen. III. 2, p. 196, t. 173. Limestone hills and plains on the 

 Rio Grande and its tributaries^ western Texas. 



Malpighia GLABRA^ Liuu,; DO. Prodr, 1, p. 578. On tbe lower Rio Grande^ September — 

 October (flowers and fruit) ; Schott, Dr» Edwards found it near Monterey, Neuvo Leon. It is 

 a sbrub 1 — 4 feet high^ growing in densely bushy places. 



« 



Janusia gracilis, Gray, PI. Wright. 1, p. 28; dt 2, p. 30 ; Torr. Bot. Parkes, in Facific R. 

 Road Expl. ^,p. 9, ^. 1. From the Limpio mountains to El Paso, and west to Chihuahua and 

 Sonora. 



Aspigakpa longipes, Gray, Fl. Wright. 1, p. 38 (£ 2, p. 30. Rocky hills near the Lirapia 



river, July — September ; Bigelow. Sierra del Pajarito, Santa Cruz, Sonora ; Thurher, Schott. 



AspicARPA HYssopiFOLiA, Gray, Fl. Lindh. 2, p. 167; & Fl. Wright. \, p. 36. Limestone 



hills along the lower Rio Grande, October ; Schott. 



HiEiEA SEPTENTEiONALis, Ad, Juss. Monog. Molpjigh. p. 309. Var. foiiis minoribusscT pissirae 

 oblongo-lanceolatis, Gray, Fl. Thurh. p. 303 {adnot.) Between Reyom and Ures, Sonora ; 

 Thurher. Dr. Edwards collected it near Monterey, Neuvo Leon. It is a shrub 6 — 8 feet high. 



POLYGALACE^. 



PoLTGALA PUBEEULA, Gray, Fl. Wright. 1, p. 30. Hills between Van Horn's Wells and 



Muerte ; and on the mountains of Leona ; June — August ; also at the Copper Mines, and on 

 the Eio Mimbres. 



PoLTGALA LiNDHEiMEEi, Gray, pi. Lindh. 2, p. 150 ; & Fl. Wright. \, p. 39.' Hills and plains, 

 western Texas ; New Mexico and Sonora ; June — September. 



PoLYGALA ovATiroLiA, Gray, FL Wright. 1, p. 39. Limestone rocks on the Rio Grande from 

 Eagle Pass up to the San Pedro and Pecos ; Schott, Bigelow. 



Nutt 



Fl. Wricjht. I. c. G 



Grande fi 

 K. Smith 



Santa Cruz river, Sonora ; Capt. E 



E. B. K. Nov. Gen. 5, p. 399 ; var. multicatjlis. Gray, I. c. Hill 

 so at Eagle Springs, Texas ; BigeloWf Parry. 



n 



-9^ 



