240 AlgcB and their Study. [Sess. 



Order— UIi VALE S. 

 Family — Ulvaceae. 



12. Monostroma bullosa (Roth) Wittr. (Duddingston Loch.) 



13. EnteromorpJia intestinalis (L.) Link. (During summer months in 



enormous quantities in pond at Inverleith Park.) 



Order— SCHIZOGONIALES. 

 Family — Prasiolaeeae. 



14. Prasiola parietina (Vauch.) Wille. (Very common on walls.) 



15. n crispa (Lightf.) Menegh. (Quarry near Granton.) 



Order— MICROSPORALES. 

 Family — Microsporaeeae. 



16. Microspora amoena (Kiitz.) Lagerh. (Burn near Cramond.) 



17. II ahhreviata (Rabenh.) Lagerh. (Pentlands.) 



Order— CLADOPHOIl ALES. 

 Family — Cladoplioraceae. 



18. Chcetomorpha sutoria (Berk.) Rabenh. (Burn near Currie.) 



19. Rhizoclonium hieroglyphicum (Kiitz.) Stockm. (Very common in 



Pentlands on wet rocks and burns.) 



20. Cladophora fracta (yahl.) Kviiz. (Braid Burn.) 



21. u ^^omerato (L.) Kiitz. (Water of Leith.) 



Order— SIPHONEiE. 



Family — Vaucheriaeeae. 



22. Vaucheria sessilis (Vauch.) D.C. (Damp soil, Edinburgh.) 



23. It geminata (Vauch.) D.C. (Royal Botanic Garden.) 



Order— CONJUGATiEI. 

 Family — Zygnemaceae. 



24. Moiogeotia scalaris Hass. (Pentlands.) 



25. Spirogyra longata (Vauch.) Wittr. (Ditch near Granton.) 



Order— PROTOCOCCOIDE^. 

 Family — Pleurococcaceae. 



26. Pleurococcus vulgans Menegh. (Everywhere on trees, rocks, walls, 



and fences.) 



Family — Protococcacese (or Autosporacese). 



27. Ankistrodesmus falcatus {CordiQ) 'Rdli^. (Elf Loch, Braids.) 



Family — PalmellacesB. 



28. Tetraspora luhrica (Roth) Ag. (Marlpit, Craigcrook.) 



29. II gelatinosa (Vauch.) Desv. (Elf Loch, Braids.) 



