290 MR. SPENCER LE M. MOORE—PHANEROGAMIC BOTANY 
Vismia japurensis, Reichardt. | Stilpnopappus viridis, Benth. 
Psidium insulincola, S. Moore. | Tabernemontana hirtula, Mart. 
Passiflora coccinea, Aubl. |. Maderosperma oblongum, S. Moore. 
Anguria gloriosa, S. Moore. 
Randia Ruiziana, DC., var. longiflora, K. Schum. 
Faramea bracteata, Benth. 
Oryctanthus ruficaulis, Eichl. 
Croton Cajucara, Benth. 
| Neea hermaphrodita, X. Moore. 
Salicea novo-granatensis, K. Schum. |. Renealmia Holdeni, S. Moore. 
Of the more remarkable Eastern Brazilian plants at Santa Cruz, the subjoined is a 
short list, viz. :— 
Ozalis hirsutissima, Zucc. | Rhodocalyx rotundifolius, Muell. Arg. 
Hirea sepium, A. Juss. Brosimum Gaudichaudii, 'Tvéc. 
Baccharis tridentata, Vahl. | Herreria Salsaparilha, Mart. 
But with regard to this list one must remember how little—really almost nothing—is 
known of the South-Amazonian region. This it is which renders doubtful the exclusion 
of any of these plants from Amazonia proper. 
THE PRIMEVAL Forest FLORA. 
It has already been mentioned that the forest extends northward from the immediate 
neighbourhood of Santa Cruz over a gently undulating upland of low elevation as far as 
to the Campos de Tapirapuan. In the gloomy recesses of the forest we should expect 
to meet with a flora different from that of the more open country, so that, instead of 
the latter’s xerophilous vegetation, we ought there to be confronted with hygrophilous 
types. Moreover, in passing northward through the forest, we are ever approaching the 
Amazonian plateau. Seeing, therefore, that the North-Brazil-Guiana element is already 
strongly represented in the flora of Santa Cruz, one would a fortiori expect the forest 
flora to show even more affinity with that of the country lying to the north. My results 
under this head are somewhat unsatisfactory in consequence of the slender opportunities 
of collecting afforded me during our expedition through the forest, and the consequent 
small number of species secured. It is conceivable, however, that a few specimens, 
plucked hap-hazard may well represent the affinities of a flora; and in the present case 
the remarkable series of Amazonian species, and species with Amazonian or rather North- 
Brazil-Guiana affinity, can scarcely be a false indication as to the nature of the flora as a 
whole. 
In this flora we find a large preponderance of North-Brazil-Guiana types, and, as 
compared with the Cuyabá and Santa Cruz floras, marked decrease in the diffused 
Tropical American and East Brazilian factors, as the following figures show :— 
The constituents of the forest flora are 
Diffused Tropical American ........................... 28 per cent. 
e occ ois cere sm raro hao» aces a 
Common to the two Brazilian provinces ............ Wu 
BEN DENM iis ose cia O 25. 
Mexican 
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