MICROSCOPIC OBJECTS. 48 



Fig. 95. A Species of Confervoid Alga (Batrachospermum 

 moniliforme), x 60. 



This species may be considered one of the most beautiful 

 of all the Confervoid Algse. It is found in clear and slow- 

 running streams. The colour is generally green, yellow, or 

 red ; and it may be distinguished by its fine sprays, somewhat 

 resembling one of our common red Seaweeds (PLocamium 

 coccineum). The tufts of chains of the oval spores occur in 

 whorls at intervals in the stem of the plant. 



The object is best mounted in fluid. 



Fig. 96. A Species of Conferva (Prasiola calophylla), x 100. 



The chief character of this rare form of Conferva is that 

 the cells are placed in groups of four, in regular lines with 

 intercellular walls. The increase of the plant appears to be 

 by the solution or destruction of the filaments by the process 

 of decay, when the cells, which seem to be the spores also, 

 are left free, and so by their growth increase the species. 

 The reproduction of this Conferva appears to have been at 

 present little studied. 



The object is best when mounted in fluid. 



