234 
ORGANOGRAPHY. 
BOOK I. 
fruits, as has been done by more carpologists than one. While 
the true aggregate fruit is produced by the ovaries of a single 
flower, a collective fruit, if aggregate, is produced by the 
ovaries of many flowers; a most important difference. As 
the pericarp is necessarily much affected by the calyx when 
the two adhere so as to form a single body, it is indispensable, 
if a clear idea is to be attached to the genera of carpology, 
that inferior and superior fruits should not be confounded 
under the same name : for this reason I have in all cases 
founded a distinction upon that character. 
In order to facilitate the knowledge of the limits of the 
genera of carpology, the following analytical table will be 
found convenient for reference. It is succeeded by the cha- 
racters of the genera in as much detail as is necessary for the 
perfect understanding of their application. 
Class I. Fruit simple. APOCARPI. 
One- or two-seeded : 
Membranous, - - - 
Dry and bony, 
Fleshy externally, bony internally, 
Many- seeded ; 
Dehiscent : 
One-valved, 
Two-valved, 
Indehiscent, - _ _ 
Class II. Fruit aggregate. AGGREGATI. 
Ovaria elevated above the calyx : 
Pericarpia distinct, . . _ . Et^rio. 
Pericarpia cohering into a solid mass, - - Syncarpium. 
Ovaria enclosed within the fleshy tube of the calyx, - Cynarrhodum. 
Class III. Fruit compound. SYNCARPI. 
Sect. 1. Superior ; 
A. Pericarpium dry externally ; 
Indehiscent : 
One-celled, 
Many-celled ; 
Dry internally : 
Apterous, 
Winged, 
Pulpy internally, 
Dehiscent ; 
By a transverse suture, 
By elastic cocci. 
Caryopsis. 
- Carcerulus. 
Samara. 
- Amphisarca. 
Pyxidjum. 
Regma. 
Utriculus. 
Ach^nium. 
Drupa. 
- Folliculus. 
Legumen. 
- Lomentum. 
