Mexican plants collected by Mrs, Mexia and sent to the Gray Herbarium 
Determined by I. M, Johnston, 
404 Prosopis chilensis (Molina) Stuntz 
465 Talinum paniculatum (Jacq.) Gaertn. 
46? M a 1 p i g h i a o v a t a Rose 
469 Abut i Ion trisulcaoum (Jacq.) Urban, 
