STRUCTURAL, PHYSIOLOGICAL, SYSTEMATICAL, 

 AND MEDICAL ; 



X, 



BEING A FOURTH EDITION OF 

 THE OUTLINE OF THE FIRST PRINCIPLES OF BOTANY. 



BY JOHN LINDLEY, PH.D. F.R.S. 



VICE-SECRETARY OP THE HORTICULTURAL SOCIETY OP LONDON; 



PROFESSOR OP BOTANY IN UNIVERSITY COLLEGE, LONDON, 

 THE ROYAL INSTITUTION OP GREAT BRITAIN, AND TO THE SOCIETY OP APOTHECARIES. 



LONDON: 

 'PRINTED FOR TAYLOR AND WALTON, 



BOOKSELLERS AND PUBLISHERS TO UNIVERSITY COLLEGE, 



UPPER GOWER STREET. 

 1841. 



