APPENDIX 643 



endogenous root develops, it penetrates the tissues of the foot and 

 also the overlying tissue of the gametophyte, and emerging, grows 

 downward into the ground. 



P. 569. Tenth line from bottom; "alteration" should read 

 "alternation." 



P. 570. For Scott (3), read (4). 



P. 571. For Lang (3), read (2). 



P. 571. A doubtful case of apogamy has been noted by Jeffrey 

 in Botrychium, one of the Eusporangiate Ferns. (Jeffrey (i).) 



CHAPTER XVI 



P. 576. Among the many contributions to a knowledge of the 

 fossil Archegoniates that have appeared in the last ten years, the 

 following may be noted : 



Stopes (i), Scott (5, 6), Browne (i). Coulter (5), Kidston (i), 

 Seward (5), Bower (22), Chodat (i), Oliver (i), Jeffrey (4). 



