vi BOTANT 



in its common meaning of "first, unshapen Legir.-ning/ or "the first 

 or embryotic origin of anything," conveys more accurately than any 

 word yet proposed the true significance of the term Ariiage as used 

 in a morphological sense. I have also followed the German custom 

 in using, where consistent with brevity and conciseness, ordinary 

 rather than technical, descriptive words whose comprehension requires 

 a constant reference, on the part of the student, to a glossary or 

 botanical dictionary. The expression " Hochblatter " I have trans- 

 lated as bracteal leaves, in conformity with the express statement of 

 the German author, by whom they are also designated as bracteaj. 



In finding satisfactory English equivalents for German terms 

 heretofore untranslated, considerable difficulty has been experienced. 

 It gives me great pleasure to acknowledge the helpful suggestions and 

 advice received on such points from Professor Macfarlane and Doctor 

 Har shburger, and to express my indebtedness to them and to Doctors 

 Osterhout and Lungers-hauser. for the kind assistance rendered in 

 other details of the work of translation. 



H. C. POETEE. 



Ustversitt OF PESSSTLVa:-! A, 



Philadelphia, February 1^'jfj. 



