NATUEAT. SYSTEM. 
a/rahle into carpels^ &c. Under this great division in the first 
group of orders^ is the Ranunculus^ a type of the order Kanun- 
cuLACE^ ; the Magnolia^ a type of the order Magnoliaceje, 
with several other orders. In a second group of orders^ the 
white Water-lily, Nymphem^ is a type of the NYMPHACEyE. 
Thus we proceed through the twenty groups, in which we 
meet with a large number of the most conspicuous orders among 
the vegetable tribes — the Yiolace^, or motet tribe / the Mal- 
vaceae, or holly hoch tribe j the CARYOPHYLLACEiE, or pink tribe ; 
the Rosacea, or rose tribe^ &c. 
DIVISION II. 
393. Monopetalous or Gamopetalous, Exogenous Plants. — 
Under this division are eleven Groups of Oedp:rs, each group 
usually composed of fewer orders than the preceding division, 
and founded on various circumstances connected with the situd- 
tion of the ovary and seed^ / tlie number and situation of the 
stamens and pistils / regularity or irregularity of the flower^ 
&c. We find here the bell-flower, Campanula^ a type of the 
order Campanulacej^ ; the sun-flower ^Xho, type of the Composite ; 
the Asclepias^ of the Asclepiadacejs, &c. 
division hi. 
394. Apetalous, Exogenous Plants. — This division consists 
of seven Groups of Orders, in some cases composed but of one 
Order, for which no alliance is found. The groups are founded 
on circumstances of the flowers^ as perfect or imperfect / the 
situation and cells of the ovary / character of stipules j nature 
of the pjlant^ as woody or herbaceous^ &c. We find in this 
division the Virginia snake-root, AristolocMa^ as the type ot 
the natural order Aristolochiace^ ; the poke-weed, Phytolaca^ 
the type of the natural order Phytolacace^ ; the common pig- 
weed, Chenopodium^ the type of the order Chenopodiaceje ; the 
elm, the type of the order Ulmace^, &c. ; the oak, the walnut, 
the birch, willow, nettle, mulberry, hemp, &c., each standing 
the representative of a family, or natural order. 
SUB-CLASS n. 
395. Gymnospermous, Exogenous Plants. — Plants with seeds 
naked or not inclosed in an ovary, the carpel being represented 
by an open scale^ as in Pines ; or by a more evident leaf, as in 
Cycas ; or wanting altogether, as in the Yew. We find here the 
pine, the type of the natural order Coniferje ; Cycas^ the type 
of the order Cycadace^. 
CLASS n. 
396. Endogenous or Monocotyledonous Plants. — ^There are 
ITVE groups ill this class, each consisting of from on^ to twelve 
