AMONG THE WILD. FLOWERS, 
occurs. Cl. XI., Dodecandria, has twelve or 
more stamens. Cl. XII. and Cl Tae 
both alike numerous stamens, but in Cl. XII., 
lIcosandria, the stamens are all affixed to the 
inner part of the calyx,—for example, the Haw- 
thorn, Strawberry, Wild Rose, and Blackthorn, 
etc. ; whilst in Cl. XIII., Polyandria, they grow 
up from the receptacle, as the top of the flower- 
stalk is called,—example, the Buttercup and 
Anemone. It will be convenient to postpone 
the description of the remainder of the Linnzean 
Classes to other papers in which examples of 
them are mentioned. 
What has been said shows that this system 
is a purely artificial one; but it was the result 
of the keenest observation, and has always 
been found useful in the early stage of Botan- 
ical study. All students, however, will acquaint 
themselves with the Natural System, which 
classifies plants according to some natural pecu- 
liarities common to individuals among them. 
Under this System all our British plants are 
comprised in about 100 Natural Orders, named 
respectively after some prominent plants of the 
Order ; for example, Grasses, GRAMINE&; Ferns, 
Fiuices; Orchids, OrcuipacE&; the Butter- 
