MIRBEi;S (CLASSIFICATION OF Ti^RTHTa 
93 
b, represents the peach deprived of one half of its pulpy exterior, or 
p'anextern, and exposing the nut or panintern ; c, represents the 
nut divested of one of its valves, and showing the seed d. 
Order 7th. Baccati, (from bacca, a berry,) simple, succulent fruits, 
containing many separate seeds. The genera in this order are the 
following : 
Pyridion^* (from perideo, to lie around ;) this is a regular fruit, 
crowned with the adhering calyx. The pericarp is fleshy, and has 
several cells, each of which contains one or more seeds ; the em- 
bryo has two cotyledons, which are large and fleshy. This ffenus 
contains the apple and pear. The apple, {Mains communis^ Fig. 
102, has a round, fleshy pericarp, crowned with the calyx; the seeds 
are enclosed in five carpels, or cells, ranged around in the axis of the 
fruit ; the cells are composed of membranaceous valves. The seeds 
are tunicated, or coated ; a, represents an entire pyridion j 6, the 
same cut vertically j and c, the same transversely.f 
Pepo^ (from the Latin pepo^ a melon;) this is a regular monoce- 
phalous fruit with a radiating placenta, containing many seeds ; the 
panextern is solid and dry ; the panintern is pulpy. The watermelon 
is globular, and the cucumber oblong. Fig. 103, represents the cu 
cuMis anguria, sometimes called prickly cucumber ; a, is the entire 
'pepo, which is spinous, three-celled, and many-seeded. The cells 
and seeds are shown by the same fruit cut transversely, as at b; c, 
represents a seed, this is tunicated and dicotyledonous ; d, the same 
cut vertically. 
♦ Called Pome, by LinnsBus. 
t A singular tact is observable in the fruit of the apple : w^en cut in slices trans- 
versely, it exhibits in its substance an exact representation »f the five petals which 
existed in the flower; I have never, in any botanical work, met with a notice of this 
phenomenon, and know not on what physiological princip les it can be explained. 
0»-der Baccati— Pyridion— I epo. 
