AND THE ADJOINING TEEEITORT. 209 



The latter naturally includes a large proportion of species 

 belonging to subtropical types. Both lists include the intro- 

 duced as well as the indigenous species. 



Seven species enumerated in the following list, but which pro- 

 bably do not extend to Patagonia, are excluded from this table. 



The most noticeable features in the comparison are the much 

 larger proportion of Rosacea? and Gramineje in the Patagonian 

 flora, with relatively few Leguminosse, and a complete absence of 

 Malvaceae, Convolvulacea?, and Euphorbiacea?, of which orders 

 the Argentine flora contains 171 species, or more than 7| per 

 cent. Besides the above, the Argentine flora, as might be 

 expected, includes representatives of numerous natural orders 

 (with about 400 species) not yet known to be represented in 

 Patagonia. 



The small collection of plants from Entrerios sent to me by 

 M. Claraz contains only about 60 species, several of which are 

 imperfect fragments, and of course cannot be considered as 

 representative of the comparatively rich and moderately well- 

 known flora of that region. Nevertheless, I find the following 

 eight species not enumerated by Grisebach from that province, 

 and only two of which he appears to have received from any 

 part of the Argentine territory : — 



Pavonia glechomoides, A. St. Hil.,=P. cymbalaria, DC. Con- 

 cepcion del Uruguay (No. 276, G. C). 



Cassia ca?spitosa, Lam. Entrerios (No. 263, G. C). 



Cuphea glutinosa, Cham. & Schlecht. Near S. Jose (No. 260„ 

 Gk 0.). 



Taherncemontana affinis, var. ? Banks of the Uruguay (N<x 

 251, a. C). 



Grisebach does not include any species of this genus. 



Convolvulus dissectus, Cav., var. angustifolia. Forests and 

 islands of the Uruguay (No. 287, G. C). 



Nicotiana acutifolia, A. St. Hil. Entrerios (No. 262, G. C). 

 Received by Grisebach from the province of Cordoba. 



Nectandra amara, var. australis, Meisn. Entrerios (No. 247, 

 G. C.) . Received by Grisebach from Oran (the subtropical region 

 in the extreme north of Argentine territory). 



Andropogon virginicus, L. Entrerios (No. 130, G. C). 



I may here remark that many of the statements made by 

 travellers which have been adopted in works of authority, re- 

 specting the vegetation of South America, are open to much 



