Tn 11 



J. Ii 111 \ \! I - 





! : I /. /' 'HEN A LE& Til. 



i 



1823); / 

 I-. 



. 

 ll./- - ( 



Chevalier lint de* QrapkUUet !■-• ^ 



< Uvlar fiovxrlat - 

 dium in which r 



Uways having 



1 1 4 



niiial plants, often spr rer the surface of the earth, or i 



drj places, in the formofalobed and foliaceous, or hard and crusl 

 substance, called a thallus. This thallua is formed of a cortical and medull 

 of which the former if simply cellular, the latter both cellular and filarn n the 



crustaceons - 

 • » medullary layer differ clued) i: 

 ■ the 



louri 



fruticulose or fol i 

 ^H|vy ~ (li-iiiu-.!\ 



the Litter occupyu \ 

 '| V 1 iila/n^fflV<lS V- thallus, ui thi 



L^iMBfiS-'iV^ lMUlld llV til' 



■v ' / ductive matter of I 



• 



nut ! 

 I ' '-^SPy? whiili l>uiM tin 

 layi . 



. 



i . x \ \ 

 eellules of the medullary layer of the thallus. 



Fig. XXIX 1 SI .elds of Variolaria an. 

 piece of the thai 

 shields ; 5. shield of • 

 peroUa ; 8. ! 



oacea ; 1 ' I 

 J Endocai ]iod niiniatum ; 14. tl 



1 i- \ \ \ 



