42 TlMEHRI. 
one or two species of grass-like Pazpalanthus ; a few 
real grasses occur ; great quantities of most splen- 
did and luxuriant pitcher-plant [Heliamphora) and of 
the yucca-like plant said to be poisonous. An in- 
teresting feature connected with this latter plant was 
that on the summit of the mountain this plant 
was in full flower, though only expended seed-pods 
were visible on it below ; and its yellow crowns of 
flowers surmounting the tall stiff stalks, which in external 
appearance may be very closely likened, both as to 
form and colour, to that of the well-known Crown- 
Imperial {Frittilaria imperialis) at home, were sufficiently 
abundant and remarkable to lend a character of their own 
to the scene. Most, if not all, of the lovely flowering 
plants already described as occurring at the top of the 
ledge were also very abundant on the top ; from which 
latter place, indeed, they had probably originally reached 
the ledge. The stunted tree-like character of the only 
shrub, five to six feet in height, occurring on the summit, 
has already been mentioned. As regards the very scanty 
vegetation in the crevices of the rocks, this was almost 
entirely composed of two or three insignificant ferns, re- 
sembling in external character the European Asplenium 
septentrionale, and of a most exquisite and large flowered 
Utricularia, one of three species to which I shall have 
to refer fully in dealing in another paper with the plants 
of Roraima. 
Only after some time was the perception felt that 
there was after all some trace of order in this apparent 
disorder. What this order is is rather difficult to explain 
briefly. The top of the mountain seems to be not, as 
was supposed, quite flat, but to have the form of a basin ; 
