4§ TlMEHRI. 
enable the plants to withstand the severe strain and drag 
of the tidal current of the river. Those I obtained belong- 
ed to the genera Epidendrum and Brassavola, but others 
may also be procured. I gathered flowering specimens of 
a small form or variety of the delicately sweet scented 
Epidendrum fragrans, and also of E. nocturnum. 
Creeping along the shore slowly, something constantly 
appeared, to be gathered. The very beautiful Petrea 
Schomburgkii was seen twining up the bushes and 
throwing its spikes of bloom where they could be 
best displayed. These are much finer than those 
of the commonly cultivated P. volubile, being some- 
times nearly as long as one's arm. Another hand- 
some creeper was a robust species of Dioclea (probably 
D. glabra) with densely packed spikes of purplish red 
flowers and glossy trifoliate foliage. A second species 
was found later, on our way to the falls, not less showy in 
its bloom, but with coarser leafage. Before we started I 
explained to the Indians of the crew, as well as I was able, 
what I was principally seeking. I told them it was a milk 
yielding tree, and described the character of the 
foliage. They did not, however, recognize the plant. 
We had proceeded about a mile, carefully scouring 
the banks en route, when, as the boat was drawn to the 
shore to obtain something else, the object of our search 
was discovered by my fellow traveller. It was only a small 
tree, however, almost hidden by others, but flowering 
very freely, and I gathered copious specimens. On see- 
ing the tree the Indians at once recognised it, and 
the word Hatie, quietly uttered, passed from mouth 
to mouth. Just at that time a heavy shower and a 
