66 TIIINSACTIONS AND PEOCEEDIXGS OF THE [Sess. lviii. 



(lobis 2i liiL longis). Corolla 1 poll. diam. (lobis S-3h lin. 

 longis, 2 lin. latis). Antherse 3^-4 lin, longcC. Aculei 

 1^—2 lin. longi. 



This species should probably be placed near S. crinitipcs, 

 it seems to be well distinguished by its long pedicels, 

 deeply divided calyx, and the horizontal needle-like spines 

 with which the calyx, pedicels, petioles and stem, are thickly 

 clothed. A plant collected in Paraguay by Balansa (No. 

 2115) may be a form of this species, but the specimen 1 

 have seen is in fruit only, and the leaves have much 

 shorter petioles, are more elongated, more deeply lobed, and 

 have fewer veins (X. E. Brown). 



SOLANUM EOBUSTUM, Wendl. 



Hab. — Lower Pilcomayo. Fl. March. 



SoLANUM siSY]y£BErFOLiUM, Lamk. 

 Hab. — Gran Chaco. 



Phtsalis angulata, L. 

 Hab. — Piio Pilcomayo. 



JaBOEOSA INl'EGElFOLIA, Lamk. 



Hab. — Common in open campo near Fortin Page. 



Petunia tiolacea, Lindl. 

 Hab. — Piio Pilomayo. 



NicoTiANA GLAUCA, Grab. 



Hab. — By margin of river, Eio Pilcomayo. 



Stemodia palusteis, St. Hil. 

 Hab. — Eio Pilcomayo. 



ScoPAEiA PLATA, Cham. 



Hab. — Frequent in open palmar near Fortin Page. Yl. 

 Xov., Dec. 



BUCHNERA ELONGATA, Sw. ? 



Hab. — Ptio Pilcomayo. 



BiGNONIA COEYMBIFEEA, YahL 



Hab. — Montes of Pdo Pilcomayo. 



DOLICHANT)EA CYNANCHOIDES, Cham. 



Hab. — Piio Pilcomayo. Lat. 24° 48' S. In margin of 

 "monte duro." Straggling shrub. Fl. 3rd L»ec. 1890. 



