PLATE XIV. 



A. Melobesia, page 107. 



Fig. 1, M. fasciculata. 2, leaf of Zostera, on which 

 M. memhranacea is growing ; both the nafnral size. 

 3, fronds of M. memhranacea ; magnijied. 



B. LiTHOCYSTis, page 111. 



Fig. 1, Part of a frond of Chrysymenia clavellosa, on 

 which L. Allmanni is growing ; the natural size. 



2, fronds of L. Allmanni ; very highly magnijied. 



C. HiLDENBRANDTIA, page 110, 



Fig. 1, H. rubra, growing on a pebble; the natural 

 size. 2, small portion of the frond, viewed vertically. 



3, vertical section of the frond, cut through a con- 

 ceptacle. 4, a tetraspore ; all magnijied. 



D. Peyssonelia, page 144. 



Fig. 1, P. Duhyi, growing on a fragment of stone ; the 

 natural size. 2, vertical section, cut through a 

 wart. 3, tetraspores; both highly magnijied. 



