SYNOPSIS 
OF THE 
NATURAL ORDERS OF BRITISH PLANTS. 
The number prefixed to each Order indicates the page where the 
description of the Genera will be found. 
1. PHANEROGAMEiE or FLOWERING PLANTS. 
Class I. DICOTYLEDONES. 
Wood of stem youngest at the circumference. Cotyledons 2 
or more. 
Subclass I. EXOGENS. 
Seeds inclosed in seed-vessels. 
Subdivision I. El. with a calyx and corolla, polj'petalous, in- 
ferior. 
A. Ovaries numerous, distinct or united, each bearing a style ; 
or solitary with 1 lateral placenta. 
I. Corolla regular. 
a. Sepals distinct. Stain, hyjjogynous. 
1. Ranunculace.®. Anth. opening by 2 longitmhnal clefts. 
10. Berberide.e. Anth. opening by a valve fi-om the bottom 
to the top. 
b. Sepals more or less combined below. 
122. Crassulace^. Stam. as many as, or twice the number 
of, the pet., on the base of the calyx. 
87. Rosacea. Stam. 20 or more, on the calyx. 
II. Corolla iiregular. 
02. ResedacejE. Cal. persistent. Ovary 3-lobed, 1-celled, 
open at the end. Stam. 10 — 24. 
70. Leguminos^. Ovary 1-celled, closed. Fr. a pod. Stam. 
10, 1 — 2-adelphous. 
