APPENDIX. 



[In Hedwigia (1872, p. 18 ; see also Journ. of Bot. 1872, p. 114) Cohn has published a 

 classification of Cryptogams in which, as respects Thallophytes, the distinction between 

 Algae and Fungi is abandoned. In the fourth edition (pp. 248-340) of the present work 

 Sachs has however proposed and adopted a new classification which, except in this 

 respect, has little in common with Cohn. In each class the names on the left hand 

 belong to forms containing chlorophyll (so-called Algae); those on the right to forms 

 destitute of chlorophyll (so-called Fungi). The numbers refer to the pages in the present 

 edition where the groups are described or mentioned. 



CyanophycesB. 



Chroococcaceae (216). 

 Nostocaceae (215). 

 Oscillatorieae (215). 

 Rivularieae (215). 

 Scytonemeae. 

 PalmellaeeaB (in part). 



CLASS I. 

 Protophyta. 



Schizomycetes (214). 

 Sphaerobacteria. 

 Microbacteria. 

 Desmobacteria. 

 Spirobacteria. 



Saccharomyces (254). 



CLASS IL 



Zygospore.e. 

 Conjugating cells locomotive. 



VolvocineaB (217). Myxomycetes (274). 



(HydrodictyeeB) (217). 



Conjugating cells stationary. 



Zygomycetes. 



ConjugataB. 



INIesocarpeae (220). 

 Zygnemeae (220). 

 Desmidieae (221). 

 Diatomaceae (222). 



Mucorini (245). 

 Piptocephalidae (246). 



SpheBroplea (231). 



Vaucheria (223). 



GEjdogoniesB (229). 

 Fucaceae (226). 



CLASS in. 



Oospores. 

 CoBloblastaa. 



f Saprolegnieae (242). 

 I Peronosporeae (244). 



