[ 262 j 
dinal duds that lead to the germen (Figure 21). 
Thefe canals, after tiiey enter the piftillam, a% lefs re- 
gular, branching out frequently into fmaller ones, 
which, indead of running directly to the longitu- 
nal duds, vary their direction, and fall into the ca- 
nals that run from the hairs next adjoining, fur- 
niOiing the appearance of an irregular reticulation 
(Figure 22), though neverthelefs there are com- 
monly principal canals obfervable that run more di- 
redly towards the longitudinal dud:s, and fall into 
them (Figure 22). The corpufcles are admitted 
into the hairs in the following manner ; the grains 
of the pollen having difperfed themfelves about the 
ftyle and ftigma, great numbers of them find a 
lodgement amongft the hairs ; thofe which fall be- 
tween the hairs, or cling to the Tides of them, may 
be fuppofed to lofe their effed:, which will not be 
thought improbable, if it be confidered what an 
abundant provilion there is of the pollen, and how 
large a part of it mud neceflarily be waded by be- 
ing carried away by the flower, or at leafl not fall- 
ing on the female organs, but there are many of the 
grains that fall on the points of the hairs (Figure 
23), and thefe furnifli the impregnation. The 
grains being arrived at a ftate of maturity before they 
iflued from the antheras, are prepared to burd and 
difcharge their contents when they fall on the hairs, 
and the female organ aflids likewife in producing 
this effed: ; for foon after a grain has lodged itfelf, 
the point of the hair begins to open, and the mouth 
extends itfelf by degrees over the furface of the 
grain, till almod: the whole body of the grain is 
drawn within the tube (Figure 23) j indhis fituation. 
