Class 2. PH^EOPHYCE^E, p. 44. 



Order I. SYNGENETICLE 44 



Family 1. Hydruracese 45 



Hydrurus 

 Family 2. Chrysomonadinacese 46 



Synura, Syncrypta, Uroglena 



Family 3. Dinobryaceae 47 



Dinobryon 



Family 4. Phseocapsacese 48 



Phseococcus, Pbseosphsera, Sticbogloea 



Class 3. CHLOROPHYCE^E, p. 50. 



Order I. (EDOGONIALES 57 



Family 1. (Edogoniaceae 57 



(Edogonium, Bulbochsete 



Order II. CILETOPHORALES 66 



Family 1. Coleochaetaceae 67 



Coleocbaete 



Family 2. Herposteiracese 70 



Herposteiron 



Family 3. Ulotrichaceae 73 



Ulotbrix, Hormospora, Gloeotila, Geminella, Radio- 

 filum, Stichococcus, Uronema, Binuclearia 



Family 4. Cylindrocapsacese 81 



Cylindrocapsa 



Family 5. Chsetophoracese 83 



Cbaetophora, Myxonema, Draparnaldia, Pseudochsete, 

 Tha mniochsete 



Family 6. Microthamniaceae 89 



Microthamnion, Gongrosira, Leptosira 



Family 7. Trentepohliacese 93 



Trentepohlia 



Order III. ULVALES 95 



Family 1. Ulvacese 95 



Monostroma, Enteromorpha 



Order IV. SCHIZOGONIALES 98 



Family l. Prasiolaceae 98 



Prasiola 



