MaucJicstcr Memoirs. Vol. L VI. {No. *^). 



Diaz. 2. 



/'hiiininer. 

 Witucr ., 



,Suniiner. 

 .•5 (winter . 

 ~iiminer. 



■C P ■] winter ... J=\ 

 " 5'. (S\unnicr... '—I 



I Beginning of the 

 ■I 5th Peronidium. 



(th reronidiuin. 



;r<l reronulinni. 



2n<.l Pcronidiiun. 

 ] ist Peronidium. 



Exposed portion 

 of scale without 

 annuli. 



' ;rd period. ^ ^ 

 \ 2nd Deiiod. ' ^ > 



