ERECT SIGILLARI^ AND STIGMARIAN ROOTS. 



I'U'. 1. SlgiUarin in situ, with Stigmaria Roots and Hootlets — Sydney. 

 „ 2. Roots of the same, as seen in a horizontal Section — Sydney. 

 „ 3. Stump n{ Slgdlaria Sydnensis, .showing tlie stem oompressed into a dome— l-l'2tli 



nat. size— Sydney. 

 „ 4. Stump of Sigi'lnria, witli very regular ."^figmarian Roots spreading in Samlsfone 

 —Port Hood. 



Figs. 1, 2, .^, are from p.ipers liy Mr I'.nnvn, (|Mi.tc'(l in the text. See iils.i pp. ISO, -l.'J' 



