228 LEMNACE. 
Grantia microscopica continued Pl. CCLXVIII. 
. Seed after germination, @ radicular end now split, much 
enlarged and cellular, 6 plumule semi-exsected. 
2. Embryo and plumule removed. 
3. Same plumule removed. 
4. Same halved, 4a same viewed obliquely shewing the 
attachment of the cap of nucleus, a. 
. Embryo and cap before the protrusion of the plumule 
just developing at a, at this stage it is filled with gra- 
nules, 
Seed, a testa, at 2 із seen the cap of the nucleus just pro- 
truding. 
Seed germinating, a testa, nucleare membrane which 
isa mere brown film, c albumen, d cotyledon, e radi- 
cle, f cap, g plumule. 
7a. Plumule separated, frond bearing rudiments of a fron- 
dule. 
8. Seed before germination, a testa, 4 nucleary, c its cap. 
8. Long section do., testa mostly removed, shewing testa, 
nucleary, cap, embryo, cotyledon, and radicle. 
8. a, its plumule separated. 
6. a. Embryo with cap at earlier period, a cap, 6 radi- 
cle, c, cotyledon. 
—— 
e 
S: 
PA 
Grantia microscopica continued, Pl. CCLXVII. 
1. Seed germinating the annulus visible at its apex is not 
a distinct structure, a testa, 5 nucleary membrane, c 
its apex carried up by the embryo, d e its radicular end. 
2. Nucleus separated at a somewhat earlier period. Plu- 
mule represented as visible, owing to slight pressure. 
2a. Its plumule, separated frondule commenced. 
3. A similar nucleus. : 
4. Plumule more developed. 4a frondule already com- 
mencing to throw off another. 
