MIRBEL’S CLASSIFICATION OF FRUITS. 
93 
6, represents the peach deprived of one half of its pulpy exterior, or 
panextern, and exposing the nut or panintern; c, represents the 
nut divested of one of its valves, and showing the seed d. 
Order 7 th. 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 genus 
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 fi ve carpels, or ceils, ranged around in the axis of the 
fruit; the cells are composed of membranaceous valves. The seeds 
are tunic a ted, or coated; a , represents an entire pyridion; 6, the 
same cut vertically ; and e, the same transversely.! 
P.epo , (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 ; < 2 , 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 Linnaeus. . 
t A singular fact is observable in the fruit of the apple: when cut m slices trans¬ 
versely, it exhibits in its substance an ex^ict representation of 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 principles it can be explained. 
Order Baccati —Pyridion—Pepo. 
