72 



INTJBODUCTION TO CRYPTOGAMIC BOTANY. 



forms which claim a place in this grand class. If the simplest 

 cellular alga;, as for example, Scenedesmus obliquus (Fig.l 6, a), 



Kg 16. 



a. Soenedesmus obliquiis, Klitz, magnified from specimens gathered at 

 King's Cliife. 



1). Lessonia fiiscescens, Bory., reduced from Dr. Hooker's figure in 

 Flora Antarctica. 



be compared with Lessonia (Fig. 16, h), or Macrocystis ; a 

 GymnospmnuTn (Fig. 17, a), with an Agaric or Cordyceps 

 (Fig. ] 7, 6) ; or finally the Leprarioid Sporidesmium (Fig. 1 8, a) 



