(73) 



south of England, although it is stated in Lightfoot's Flora Scotica to 

 have been foimd at Aberdeen. As there is no other plant that could 

 possibly have been mistaken for it, this is probably a mistake arising 

 from wrong information ; yet it is not impossible but that a stray 

 specimen might have been carried by the ocean currents so far north, 

 and found a landing in that neighbourhood. 



EXPLANATION OF PLATE CLVI. 



Fig. 1. — Padina Pavonia, natural size. 

 2. — Apex of frond and fringe. 

 3. — Section of frond. 



4. — Sorus with part of indusium rolled back. 

 5. — Tetraspores. All magnified. 



TOL. III. 



