PREFACE. 



In drawinij up an Outline Classification of the Vegetable 

 Kingdom, similar to the one published for the Animal Kingdom, 

 I have included among the plants some organisms the nature 

 of which is still under discussion, but ivhich have at least as 

 many affinities with plants as they have with animals. Thus the 

 Peridinea and Myxomycetes will be found in both classifications, 

 under different names it is true, but in each case placed among 

 the organisms to which they seem most nearly allied. 



Just as in the companion Outline both recent and fossil 

 groups are included in this classification. 



The natural orders of flowering plants are a/rranged accord- 

 ing to HooJcers plan, which, if not always in agreement ivith 

 the most recent research in systematic botany, is at least the 

 classification most generally adopted in English Museums and 

 Herbaria. 



F. E. WEISS. 



November, 1892. 



