41 6 APPENDIX. 



Class III. Diatomeae. Diatoms. 



Class IV. Peridineae. Often ranked as animals. 



Class V. Conjugatae. Brook silks and desmids. 



Spirogyra. Zygnema. Mesocarpus. Desmids. 

 Class VI. Chlorophyceae. Green algae. 

 Order i. Protococcales. 



Pleurococcus. Volvox. 



Order 2. Confervoidahs. Confervoid algae. 

 Ulothrix. Cladophora. Ulva. 

 Order 3. Siphonales. 



Vaucheria. Caulerpa. Acetabularia. 

 Class VII. Phaeophyceae. Brown algae. 

 Order I. Phaosporales, 1 



Lessonia. 

 Order 2. Fucales. 1 



Fucus. Sargassum. 

 Order 3. Dictyotales. 

 Class VIII. Ehodophyceae. Red algae. 



Orders numerous. Polysiphonia. 

 Class IX. Characeae. Stoneworts. 

 Chara. Nitella. 

 Class X. Hyphomycetes. True fungi. 



A. PHYCOMYCETES. Algoid fungi. 



Heterogamous Series. 

 Sub-class I. Oomycetes. 

 Orders numerous. Cys- 



topus. 



Isogamous Series. 

 Sub-class II. Zygomycetes. 

 Orders numerous. 



Mucor. Rhizopus. Em- 



pusa. 

 B. MESOMYCETES. Intermediate fungi. 



Sporangiate Series. 

 Sub-class III. Hemiasci. 



Yeast. 



Non-sporangiate Series. 

 Sub-class IV. Hemibasidii. 

 Brand fungi. Smuts. 



C. MYCOMYCETES. Higher fungi. 



Sporangiate Series. 



Sub-class V. Ascomycetes. 



Witch-broom fungus. Mil- 

 dews. Truffles. Penicil- 

 lium. Cup-fungi. Morels. 



Non-sporangiate Series. 

 Sub-class VI. Basidiomy- 



cetes. 

 Rusts. Cap-fungi. Poly- 



porei. Puff-balls. 



Class XL Lichenes. Lichens. 



Physcia. Theloschistes. 



1 Various larger species known as tangles, kelp, rock-weed, bladder-wrack. 



