FRESHWATER ALGÆ FROM TUDDAL IN TELEMARK. 149 



7. Elevation 3200 feet. July 5. 1919. 9 species. 

 Cosmarium Quadrum, subcrenatum, Stauraslrum punctiilatum, 



Chlorella vulgaris, Stigeoclonium lubricum. 



8. Elevation 3200 feet. July 5. 1919. 2 species. 

 (NB. exclusive of diatoms.) 



Navicula sp. (§ Pinnularia.), Fragilaria sp., Surirella sp., 

 Tabellaria flocculosa, Melosira sp. 



9. Elevation 3100 feet. In a fast-running brook. 

 July 10. 1919. 23 species 



Zygnema sp., Roya obtusa var. montana, Penium niinutis- 

 simum, Cosmarium subarctoum, subcrenatum, subprotumidum, 

 Staurastrum punctulatum, Actinastrum Hantzschii. 



10. Elevation 3000 feet. „Kovstulvatn." June 27. 

 1919. 2 species. 



Bulbochæte sp., Oedogonium sp., Tabellaria flocculosa, fenes- 

 trala, Navicula sp. (§ Pinnularia.) 



11. Elevation 3000 feet. June 27. 1919. 16 species. 

 Closterium tumidum, Cornu, rostratum, Venus, Euastrum 



ansalum. 



12. Elevation 3000 feet. June 27. 1919. 16 species. 

 Spirogyra sp., Mougeotia parviila, Zygnema sp., Cylindro- 



cystisBrebissonii, Micrasterias den ticulata, Stauraslrum saxonicum, 

 Oedogonium sp., Tabellaria flocculosa, Vanheurckia rhomboides. 



13. Elevation 3000 feet. June 27. 1919. 30 species. 

 Chroococcus turgidus, macrococcus, Stigonema ocellatum, 



Glenodinium uliginosum, Peridinmm cinctum, Euastrum sublo- 

 batum, Cosmarium quadratum, amoenum, undulatum, quadra- 

 tulum, Staurastrum margaritaceum, Gymnozyga monoliformis. 



14. Elevation 3000 feet. June 27. 1919. 17 species. 

 In a fast-running brook. 



Netrium Digitus, Closterium tumidum, Euastrum bidentalum, 

 Cosmarium subcostatum, Blyttii, Zygnema sp. Bulbochæte sp.. 



