Some Common Trench Plowers. ^t 
again seen and mentioned by BONPLAND, and in 1832^ 
POEPPIG described it under the name ot Euryale Ama- 
zonica. Five years later Professor LiNDLEY, on exami- 
ning the specimens sent to Europe by Sir ROBERT 
SCHOMBURGK, removed it from the genus Euryale and 
renamed it Vi6loria regia in honour of our Queen. 
The handsome Nelumbium speciosum, as before stated, 
is of East Indian origin, and was introduced into British 
Guiana by Mr. G. S. Jenman, It is a very pretty exotic 
and has of late years become a common weed in our 
trenches. By some it is supposed to be the sacred bean 
of Pythagoras. 
' The Eichornias come next in the attra6liveness of 
their flowers, which are lilac and borne on spikes about 
a foot high, so that they arrest attention even from a 
distance. Three species are common about town, and 
can usually be found in the trenches near Ruimveldt 
or in those behind the Alms House. The lilac tinted 
petals of two of the species are spotted with yellow, 
while in the third, Eichornia azurea, they are pale lilac 
throughout. 
The leaves of the Eichornias, which are rather thick, 
have swollen petioles, by means of which they float on 
the waters. A single full grown plant would measure 
about a foot in diameter at the bases of the leaf- 
stalks. They grow in dense masses and in some places 
completely block the trenches. 
On the Lamaha the bright yellow flowers of Cabomba 
aquatica are very conspicuous, looking like tiny specks 
of sunlight refle6led on the dark bosom of the water. 
The submerged leaves of this little plant are finely 
divided and moss-like, while those that float on the surface 
