1890.] NEW YORK ACADEMY OF SCIENCES. 185 



Gonobolus hiflorus, Nutt. 



Erythrma BeyricJiii, Torr. & Gi'ay. 



Phlox Rmmeriana, Scheele. Possibly only a form of P. 

 Druntmoiidii. 



Coldenia caiiescens, DC. 



Oiiosmodium Carolinianiim (Lam.), DO. 



Ijmmcea Lindheimeri, Gray. 



Cuscuta arvensis, Beyrich. 



Solanum eleagtiifolium, Cav. 



Solanum Torreyi, Gray. 



Solanum I'ostratum, Dunal. 



Oestrum diurmim, L. 



llysanthes qratioloides (L.), Benth. 



Calophanes Imearia (Torr. & Gray), Gray. 



Ruellia ciliosa, Pursh., var. humilis (Nutt.) {R. humilis, 

 Nutt. 'J'rans. Amer. Phil. Soc. v. [q. s.] 182 [1837] ). 

 Verbena canescens, H. B. K. 



Lippia lanceolata, Michx. 



Lippia ligustrina (Lag.), Britt. 



Teucrium laciniatum, Torr. 



Salvia Texana, Torr. 



Monarda citriodora, Cerv. 



MarruMum vulgare, L. 



Paronychia Jamesii, Torr. & Gray. 



Amarantus spinosus, L. 



Chefiopodium leptophyllum, Nutt. 



Polygonum emersum (Michx.), Britt. 



Boerhaavia li7iearifolia, Gray. 



Euphorbia serpens, H. B. K. 



Euphorbia Fendleri, Torr. & B. Gray. 



Euphorbia Preslii, Guss. 



Euphorbia angusta, Engelm. 



Euphorbia Wrightii, Torr. & Gray. 



Euphorbia, a woody species much resembling E. buxifolia, 

 Lam., but probably different. 



Croton Neomexicanus , Muell. Arg. 



Stillingia angustifolia, Engelm. 



Hicoria, a species of the Pacanier section, but with leaves 

 quite smooth even when young, and remarkably punctate. 



Juglans rupestris, Engelm. 



Salix nigra. Marsh. 



Cladium. effusum, Torr. 



Melica dij^usa, Pursh., var. nitens, Scribn. 



Eragrostts oxylepis, Torr. 



