. 65 
systematically. The general part (in French) is extremely 
interesting readin 
The principal herbaria in Argentina are in the Museum of Cor- 
doba, including types of Grisebach; Lorentz and Hieronymus, and 
reatly enriched by Kurtz, Niederlein, Holmberg, etc., at La 
Plata (Spegazzini’s plants, ete.) and at Tucuman, where is the 
herbarium of Miguel Lillo, which is particularly Yieh in plants 
of the sub- -tropical formations 
The principal herbaria in Chile are in the Museo bine oo 
Santiago, and the Museo de Historia Natural, Valparai 
REGIONS IN THE ARGENTINA OR CHILE WHICH ARE RELATIVELY 
UNEXPLORED BOTANICALLY. 
much less visited, especially by horticultural collectors, than Chile 
and the Chilean Andes. This is probably explicable, in part at 
least, by the fact that the mountains are so much nearer the west 
than the east coa 
In Argentina the Territory of the Neuquen (Gobernacion del 
Neuquen) seems the least explored of the southern Andine pro- 
vinces and might yield some hardy horticultural novelties. The 
Buenos Aires Great Southern Railway runs from Buenos Aires 
as far as Senillosa, a little west of Neuquen (1919 map) in the 
east of the province, and it is projected to carry it to the western 
frontier. From Senillosa exploration south-west towards the 
sources of the river Limay and its tributaries and north-west 
towards the sources of the river Neuquen and its tributaries should 
yield a great ay neces: and new plants. South of the lati- 
tude of Chiloe a considerable amount of work has been done and 
the flora is is eh The. provinces of Mendoza (north of 
Neuquen) and San Juan have been visited by several botanists. 
The northern Andine provinces of Catamarca and Jujuy and the 
territory of Los Andes would certainly yield many new plants, 
but Ree except on the higher mountains aa tend for the most 
part o be of a more pi a charact he northern and 
and Misiones, and t e provinces of Corrientes have. a parently ; 
been little explored *Sullieisally and certainly very little inital 
uropean collectors. The flora is here sub-tropical. The 
central provinces (Buenos Aires, Cordoba, Santa Fé, San Luis, 
and the Territory of the Pampas) have been relatively well worked, 
B 
