 Majas. DIOECIA MONANDRIA. 749 
exposes what I call the true embryo lodged a little above its 
middle, and composed of two unequal lobes, resembling co- 
tyledons pointing to the base of the vitellus ; from the upper 
pointed end of this bilobate body the radicle issues, when ve- 
getation commences, passing out through the mouth of the 
cell, and the apex of the nut now open; from the middle of 
the upper side of the radicle bursts forth, in due time, the 
plumula, in form of a small scale, and from its centre other 
. Scales continue to spring ; the fourth, or fifth, begins to take 
the form of the pinnate leaf of the full-grown plant. 
From the fresh wounded parts of all the three species of 
Cycas known to me, viz, circinalis, revoluta and this, there is 
discharged a quantity of clear, insipid mucilage, which soon ~ 
hardens into firm, transparent gum, like tragacanth, but 
clearer ; my experience however does not lead me to think 
that any one of the three yields sago, or even a substitute 
for it. Idare not venture to quote Todda panna of Rheede’s 
Malabaricus, iii, t. 18—21, for this, because it has al- 
ready been quoted by Linneus, &c. for C. circinalis, yet I 
think Rheede’s figures and description, agree better with this 
plant than with what I have already described, and figured 
under that name. For more information, consult Rumph’s 
~ Herbarium. Amboinense, i, p. 86—92, and the figures there 
quoted. 
. 
NAJAS. 
| Male calyx cylindric, bifid, Corol four-cleft. Filaments 
none. Female calyx none, Corol none, Pistil none. Cement 
one-celled, 
. 
NV. dichotoma, R. 
‘Dichotomous, Leaves tern, filiforn. Seed solitary, oval, 
smooth, It grows in deep pools of sweet water in Bengal. 
aT: ree 
