OF THE MATTO GROSSO EXPEDITION, 1891-92. 287 
Diffused Tropical American: donas isis. nase 27 per cent. 
Common to the two Brazilian porno = BP gg 
5outh Brazilian- o to ita NE a 
North-Brasil-Guiané Vea a ie oci B uon 
Comparing this with the Cuyabá flora, one notes diminution in the Tropical American 
as also in the North-Brazil-Guiana element, compensated, however, by an increase in 
the number of types common to the two Brazilian provinces. The South-Brazilian 
contingent is approximately identical in the case of both floras. One may conclude that 
the present flora, like that of Cuyabá, is markedly South Brazilian in character, and 
except for the high percentage of species common to the two Brazilian floras, yields but 
slight indications of the fact that at Jangada we are in the neighbourhood of another 
floristic province. 
FLORA OF SANTA CRUZ AND THE NEIGHBOURHOOD. 
For the purpose of the following computation, I have included under this head not 
only the plants found in the open country at and close to Santa Cruz, but also those 
gathered during our expeditions above that settlement up the rivers Paraguay, dos 
Bugres, and Brasinho. Since it is highly probable that the two latter flow through the 
primeval forest at least in the upper part of their course, the plants gathered upon their 
banks should perhaps have been added to the primeval forest list. It is, however, very 
difficult, in passing up a river with densely wooded banks, to say how far the thick 
boscage extends, and whether or no the country soon becomes more open. Mr. Holden, 
. who, at our halting-places, used to push his way through the littoral “ matto ” in search of 
sport, is of opinion that, at least in the case of the Paraguay, open campo is soon reached. 
This, however, can scarcely be correct so far as the Brasinho is concerned ; for although 
in our forest expedition we did not strike this river, yet several of its feeders, such as the 
San Pedro, Alegra, and Palmitar, were forded, and the banks of these streams showed 
striking similarity to those of the Brasinho. Moreover, the fact of ipecacuanha being 
found near the latter river points to the existence of much forest-land there. 
The flora is composed of the following items :— 
IM EFOPICHL Ameriein * oo. 5cic cos. ciaren eni 37 per cent. 
Common to the two Brazilian provinces ............ AM E y 
Nor Bran Goles ................—. cone. AP s iu y 
mouth Braha cesos TU NUBE AEN 1d A". 
If the reader will take the trouble to refer to the Cuyabá figures, he will find the 
second item precisely the same in both cases, and the first approximately so. The per- 
centage of South-Brazilian types has, however, fallen from twenty-five to thirteen, while 
the North-Brazil-Guiana percentage, at Cuyabá but ten, is now nineteen; or, speaking 
roughly, one element has undergone lessening and the other increase to the extent of a 
hundred per cent. 
It may, perhaps, not be wholly uninteresting to show the distribution of the species 
common to the two provinces, as of those endemie in the North-Brazil-Guiana province. 
