l6o TlMEHRI. 
plant common, but with a difference of form, to the two 
districts can be mentioned here. Mr. JENMAN found at 
the Kaieteur a very striking new Moronobea [M. Jen- 
manni) ; and I found on Roraima another very striking 
new Moronobea {M. intermedia, N. sp., Engler No. 337) 
of which its describer, says that its intermediate between 
M. riparia and M. Jenmanni. 
In short, the Kaieteur savannah and Roraima may be 
regarded as two isolated areas marked by the very pecu- 
liar vegetation, which vegetation is, however, to a note- 
worthy extent, common to the two. 
Before passing on to the district of Roraima, I may 
mention that if I may judge from the reports of the 
Indians, and of the one or two white men who have 
been there, savannahs curiously like this very remark- 
able example at the Kaieteur occur (1) above Amailah 
fall on the Curiebrong river, a tributary of the Po- 
taro, (2) above Orinidouie fall on the Ireng river, 
and (3) above a certain very large fall which is re- 
ported to exist — indeed I have myself heard the roar 
of its waters — on the Potaro, about two days boat 
journey above the Kaieteur. In each of these places 
the large and not easily mistakable Brocchinia cordyli- 
noides is credibly said to occur ; and it seems highly 
probable that, with this, some of the other, but less 
conspicuous, plants of the Kaieteur occur also on these 
other savannahs. In short, it may very probably be 
that each of these reported fall-savannahs is a distinct 
area, parallel, and similar in vegetation to the Kaieteur 
savannah and to Roraima. In passing it may also here 
be noted that apparently a Brocchinia, similar to B. 
cordylinoides occurs on the Organ Mountains near Rio 
