200 _ LINDLEY’S METHOD. 
These Classes are sub-divided as follows in the artificial 
analysis :— 
EXOGENS—Sub-class I, PotyretTa.ovs. 
* Polyandrous. Stamens more than 20. 
** Oligandrous. Stamens fewer than 20. 
Sub-class II. IncompLeT#, or APETALOUS. 
’ 
* Achlamydeous. No calyz. 
** AT. hl 4 
? 
A calyx present. 
Sub-class ITI. MonoPetTaL2z. 
Taxaceex, Conifere, Cycadacee, Gnetacex, 
GYMNOSPERMS. Equisetaceez. These are the orders in 
this class. 
ENDOGENS. © 
* Flowers complete (having distinct floral envelopes ). 
** Flowers incomplete (having no distinct floral envelopes 
: except leaves.) 
Rafflesiacee, Cytinacer, Balanophorace®, | : 
RHIZANTHS, } Cynomoriacee, These are the orders in 
_.  ACROGENS. 
cao With a distinct axis of growth ; leafy. 
With a distinct axis of growth ; leafless. 
With no distinct axis of growth. 
In the Exogens and Endogens, the inferior divisions are 
__ taken from the position of the ovary, superior or inferior—_ 
__ the leaves having or being without stipules—carpels eumbined - 
or distinct. _ ae 
_ 688. We shall now explain the arrangement of the natural 
orders to be adopted in the present work. It is that of Jus- 
‘wy with the orders as recognised by Ricuanp in his Ele- 
