GRANTIA, , 229 
5. Seed, germinating but before emission of the plumule, 
the annulus has disappeared, a testa, б cap of nucleus, c 
exserted cellular radicular end of embryo. . 
5a. Same separated, b cap of nucleus, c exserted radi- 
cle, d cotyledon appearance of adhesion at its apex 
due to albumen, e Plumule faintly visible from pres- 
sure. ; 
6. Frond shewing the reproduction by fronds, a new frond 
much developed, & its frondule, c new frondule of 
larger frond. Ў 
ба. same separated to compare with plumules. 
The other species alluded to may be characterised as follows. 
(2) Grantia globossa frondibus eradiculosis supra disco pla- 
niusculo instructis. ceterum convexis. Circa Calcuttam. 
The evolution of fronds is successive; before the most de- 
veloped has separated, another has been developed and this 
has an obliquely ascending direction. More than one how- 
ever never exists exserted, at least to such an extent as in 
Lemna, in some species of which, 4 or 5 may co-exist. 
From Grantia, which is remarkable for its simplicity of 
structure, we learn that the nomal situation for the develop- · 
ment of the frond is terminal, not lateral as usually happens 
in Lemna. 
In the other species which has also similar stomata, the 
flower scarcely breaks out even in an early stage, but still 
when another is above the level of the frond, the opening 
is evident and its margins are not lacerate. 
The views here given are consonant with ordinary formation, 
as regards the embryo; the only anomaly, and which is more 
apparent than real, consists in the plumule bursting out through 
the root. 
If the included part be considered root, fatal anomalies pre- 
sent themselves, Ist as to its not corresponding with the apex 
of the nucleus, 2nd in a less degree, to its non exsertion 
from the seed. 
Mr. Brown has adverted to Lemna in such a way as would 
lead one to suppose that this included part is radicle. 
