92 PROCEEDINGS OF SOCIETIES. | 
arrangements of the group proposed by different botanists were rapidly 
Si 1 1 1 as a 
being marked by absolute and well-defined boundaries. The v 
multiplied species and made very numerous changes of name. 
tion of the Order Onssiniacee, if necessary, would have to give way 
| d Composite. 3. Pistil. 
* MM nrg the Order and. gives no characters. 
tity of structure prevails in the achenes; the external form alone va 
