n8 



BOTANICAL GAZETTE 





[FEBRUARY 



effected. In more temperate regions, however, these seaweeds lie 

 in banks on the beach for some time, and add to the fertility of the 



Fig. 5— Bank of Microcystis on the beach at New Brighton, Canterbury, east 

 coast of South Island of New Zealand. Height of scale 41 cm. (Photograph by 

 Dr. L. Cockayne.) 



Fig. 6.— Kelp banks on West Australian coast. (Photograph by author.) 



soil. Figs. 5 and 6 show such kelp banks from the coasts of Ne* 



Zealand and West Australia. 



Along the shores of the Baltic a considerable amount of se»«* 



eds, 



