Dec. 180;J.] BOTANICAL SOCIETY OF EDINBUltGII. 5 9 



t. 6997, as P. vlulacca, it differs in the structure of its 

 corona, and in having the dorsal horns of the sepals placed 

 at about i-f of an inch below the apex of the sepals. 

 The plant figured in the Flora Brasiliensis as P. violacca, 

 may be the same as that of the Botanical Magazine, 

 only with the corona erroneously represented, but they are 

 both distinct from the true P. violacca of Vellozo, which 

 appears to me to be much more like P. Sprucci, than to 

 either of these plants. The petals and interior of the 

 sepals of P. Giberti are stated by Balansa to be yellowish, 

 which accords with their appearance in the dried state; the 

 outer coronal filaments appear to be purple or violet with 

 a white base, and have some appearance of being banded, 

 the inner filaments are paler, but this may be due to the 

 process of drying (N. E. Brown). 



Passiflora maximIliaxa, Bor. 

 Hab. — Eio Pilcomayo. 



Cayapona ficifolia, Cogn. 

 Hab.— Kio Pilcomayo. 



Begonia cucullata, K1. 



Hab. — Damp spots in forests of Lower Pilcomayo. PL 

 Mar., April. Flowers white. 



Sesuvium portulacasteum, L. 



Hab. — Fortin Page. Abundant by margins of salt pools, 

 and by margin of river. Always in very salt soil. Fl. Aug., 

 Sept., Oct. 



Hydkocotyle leucocephala, Ch. et Sch. 

 Hab. — Piio Pilcomayo. 



Hydrocotyle ranuxculoides, Linn. fil. 

 Hab. — In fresh-water marshes along with Enliydra. 

 Fl. October. 



Eryngium coRONATUiM, Hook et Arn. 

 Hab. — Open campo, liio Pilcomayo. 

 Toba, Algtco. 



Eryngium elegans, Ch. et Sch. 



Hab. — Estancia Gil. Eio Pilcomayo. Abundant in 

 open campo on Lower Pilcomayo. 



