. [ 263 3 
the grain foon yields to the compreffion of the tube, 
and difcharges its corpiifcles, which, with the affift- 
ance of the fluid parts of the pulp that enter with 
them, or of the juices with which the tube itfelf is 
furmflied, float on till they enter the longitudinal 
duds, which convey them to the gerrnen. The 
grains, after thus emptying themfelves of their con- 
tents, withei and contrad, and, falling off from the 
mouth of the tube, remain in a periflied ftate about 
the Tides of the piftillum (Figure 19). The figure 
of the hair, whilfl; the grain is lodged in the mouth 
of the tube, is remarkable ; for the tube is then 
widefl: at the extremity, and leffens gradually as far 
as the bifurcation, where it forms a narrow neck, 
which gives a bell-fliaped figure to the fuperior parts, 
whilft the lower part widens again towards the bafe 
(Figure 23). In tranfparent %les, the duds that 
lead to the gerrnen maybe feen filled with corpufcles, 
which, being fupplied in great quantities from the 
hairs, pafs on through thefe duds in regular lines fo 
clofe as to touch one another (Figure 19). In fom'e 
infpedions, the corpufcles were feen to move both 
in the hairs and in the principal duds of the ftyle, 
which fhewed them to be detached fubfliances, that 
could pafs freely with the current of the juices in 
which they floated ; but their regular progrefs to- 
wards the gerrnen was dcubtlefs interrupted by the 
gathering of the flower, fo that the motion obferved 
could only be afcribed to accidental attradions, which 
put the juices in motion between the talks 3 and this 
was evident alfo from the diredion of their motion, 
which was cafual, and not always leading towards 
the gerrnen. The number of the principal duds 
that 
