48 DEVELOPMENT OF THE FLOWER 
'The contents of the cell of the anther have undergone a 
remarkable change, for the granular matter has become 
grouped into massules, and all are contained in a positive 
membranous sac, like coagulated mucus, of a fuscous tint, 
and which is easily separable, but most lacerable. 
Pl. 21. (—B.) 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. etc. 
PI. 22. (—C.) 10. 11. 
Pl. 23. (—D.) 11. 12. 13. 14. 
The glands have become incorporated along thes inner mar- 
gin, preserving however an emargination of both ends and 
a centre groove, traits of their original distinctness. 
The circumference of the placenta is occupied by roundish 
cellular simple bodies, the young ovula. 
When the calyx is just expanding, the corolla is highly co- 
loured inside, nearly equal to the calyx. 
Anther closely applied to faces of stigma. 
The massules then begin to present the appearance of be- 
ing contained in a cell of fuscous yellow tint. 
When the massules are a little more advanced, they are 
held together by extremely delicate filamentous tissue, 
not exactly appreciable by =. After the mass of massules 
has escaped, the sac appears lined with amorphous gru- 
mous tissue, just like that which is contained in the cell at 
an earlier period. : 
As transparent objects, in the earlier stages of the existence 
of pollen grains they are indistinct, and the whole sac ap- 
pears filled with grumous granules, but they are easily de- 
tected on dissection. 
When the recurvation of the processes of the corona 
staminea has begun, the filaments will be found completely 
united, the triangular space under the sinuses of the con- 
tiguous margins of the anthers having become filled up, the 
sides become indurated. Pl. 23. (—D.) 1. 2.3. 4. 5. 6. 6. 7. 8. 9. 
The membrane contained in the cells continues very 
distinct, still fuscous, each sac contains a quantity of simple 
cells, containing granules of unequal sizes: these are the 
pollen grains. 
* 
The stigmatic surfaces are the same, the lands are per- . : 

