PLATE XXIX. 



Fig. 1. Ph^Enopora expansa Hall and Whitfield 598 



A frond parted along the epithecal membrane. S. H. O 

 Fig. 2. Ph.Enopora magna Hall and Whitfield 599 



Fronds parted along the epithecal membrane. S. H O, 

 Fig. 3. Ph.Enopora multifida (VanCleve) Hall 599 



A frond parted along the epithecal membrane, collection of Geo. Caswell. S. H. O. 



Fig. 4. Homotrypa confluens Foerste 600 



a. Branch of usual size, b, Gnarl formed by coalescence of several branches. 

 S. H. O. 



Fig. 5. Caeeopora maGnopora Foerste 600 



A branch starting to divide or branch at the top. C. O. 



Fig. 6. Lioceemelea ohioensis Foerste 600 



Two branches of quite large size for this species. C. O. 



