246 TlMEHRl. 
On the gravelly soil where moisture prevails long after 
the seasons' rains have ceased, a little rusty-coloured 
sun -dew, not larger than a small strawberry, is found scat- 
tered, mostly alone, where the ground trends towards 
the fall. It is among the very smallest of the objects 
which clothe the ground, and, being not unlike the 
pebbles among which it grows, is not readily detected. 
It acquires its chief interest as a local congener of the 
well-known British sun-dew, and is the smallest known 
to me, of the insectivorous or fly-trap plants, to the most 
remarkable class of which I have just alluded. 
On similar ground, near by the sun-dew, but where 
Sphagnum has lived and died and formed in its change 
beds of vegetable matter in which numerous moisture- 
loving plants live, various species of Poepalanthus grow 
in dense masses and, when in bloom, present a 
curiously exceptional feature. This is more especially 
so with P. umbellatus, in which the primary 
stems bear at the top long slender radiating 
pedicels which spread in every direction. I may remark, 
as another proof of the distinctness of this savannah 
flora, that P. Shuaderi, which has a stout woody stem 
crowned with a spreading tuft of fine grass-like leaves, 
which is common on many of the savannahs from the 
Corentyn to the Essequibo, and probably beyond the 
colony, is not found here. These Sphagnum beds are 
also occupied by two new species of Stcgolcpis — plants 
with long ensiform leaves, having broad but folded 
sheath-like and imbricating bases which, though they 
lit closely one on another, contain much mucous matter. 
The flowers are in globose heads on tall slender stems, 
