Of Vegetables , 213 
the radicle and plume, and fo all over the bean. This 
fine {kin vegetates imperceptibly, and the two extremities 
of the bag, which furround the head of the bud, expand 
and rife with it in order to preferve it from all fuch 
fri&ions as may injure its tender and delicate texture *. 
Next to this is the parenchyma, confining of an infinite 
number of extremely fmall bladders, which may be feen 
in a very thin flice of a bean when applied to the micro- 
fcope, and appears like pith while fappy in the roots and 
trunks of plants; on cutting the radicle tranfverfiy in 
feveral parts, another body of a quite different fubftance 
from the parenchyma or pulp, will be found, which is 
alfo confpicuous in a tranfverfe fe&ion of the lobes, and 
appears there like feveral fmall fpecks, and of a different 
colour from the pulp: thefe are the feveral branchings of 
the tubes proceeding from the radicle, and forming but 
one intire trunk till it rifes to a b, fig. 430. from whence 
it ifliies forth into three main branches, the middlemoff 
diredtly into the bud c, and the other two after a little 
fpace, pafs from e e on either fide into the lobes, where 
they divide into fmaller branches, and thefe again fpread 
into other more minute ramifications, and terminating 
near the verges of each lobe, become a perfedl root. 
This feminal root being fo tender, is difficult to be dif- 
covered, but may be come at by a careful paring off the 
parenchyma in thin fiices lengthwife, in new beans; or 
if old beans are foaked a conliderabie time in water, the 
fame may be effe&ed. 
The fpecks that appear on cutting the radicle and 
plume tranfverfiy, are moff vifible in the bean and great 
lupine. 
The feminal root hath not yet been difcovered in apples, 
plumbs, nuts. Sec. partly from their colour, being the 
P 3 fame 
* Crew Ana. Plant, p. 4. 
