VEGETABLE STRUCTURE. 
109 
with its thick Juice, but with nothing elfe in it, and with its original aper- 
ture where it adhered to, or grew from the column. 
If, after repeating this obfervation on the Seeds of many Flowers in the 
fame date, we afterwards examine the young Pod in a Flower whofe An- 
theras have burlV, we fee a very manifeft difference. We find the Seeds 
of the fame form, and filled with the fame thick Juice ; but we alfo fee 
in each a fmall folid and not tranfparent particle. See Fig. 32. This fo- 
lid particle is of the fame form and fize with thofe in the globules of the 
Farina. Thofe globules have been difcharged from the Anthera : there is 
a plain way, and in this Plant a very eafy one, for them to thefe Seeds ; 
and therefore we can have no reafon to doubt this is the very particle that 
was in the Farina. The objedl is very minute, yet an accufiomed hand 
may draw it out of the foft tender Seed, and obtain conviftion from the 
Microfcope, that it is the very annular embryo of the Farina figured at 26,. 
not yet in the leaft altered. It is a naked ring of the Flefla of the parent 
Plant. By degrees this naked embryo gets its feveral coverings, the thick 
Juice of the Seed is received into two Seed-Leaves ; and the prefent growth 
ceafes. A Seed in this State cut thro’ tranfverfely, and a thin (lice of it 
powerfully magnified reprefents the embryo Plant ftill retaining its annu- 
lar form, and only altered by a protuberance from one part, which is 
the firfi: pufla toward the growth of the Plant. This is reprefented at 
Fig. 33, and the Embryo feparate at 34. This is the condition of the per- 
fect Seed of the Radilh. This Embryo is the Corculum or Heart of the 
Seed ; and is ready to grow, on being planted. 
That this Corculum of the Seed is really the Embryo originally pro- 
duced in the Anthera, is evident from thofe obfervations ; and the fadl ne- 
ver fails to be afcertained by many cafual incidents in the courfe of the en- 
quiry. The Globules of Farina are, in great part, fcattered in the air, but 
many of them fall upon the Stigma, whofe mcifi: open Veficls convey 
them, by a plain fiaort courfe, into the hollow of the column, along 
which, from top to bottom, are two rows of openings leading into the fe- 
veral Seeds. In opening the young Seed-Veflel lengthvvife thro’ the cen- 
ter of the column, and the head of the Stigma, when the Antherae have 
newly burft, we fee not only that the Tubes of the Stigma all open into 
the hollow of the Column ; but we fee in thefe Tubes, as well as upon the 
furface of the Stigma, many globules of the Farina, and multitudes of 
others which have pafiTed thofe Tubes, flicking to the infide of the Column, 
Such of the Globules as fall upon thofe places where there are open- 
ings into the Seeds, naturally enter into them ; and there, Vv'hile the Juices 
yet 
