KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 25. NIO 5. 



153 



Baboosole, 23 Nov. 1855. 

 5. H. minima, n. sp. H. minima, cellula? paullo latiores quam longae, fila formantes, la- 

 teribos sinuatis; cellulis a fronte sub-quadraticis, angulis superioribus adhaerentibus, 

 media parte apieum aperta? lateribus aut paullo incurvatis vel minute medio incisis. 

 Nuclei? Tubus mucosus? 



Long. 8—11, lat. 9—11.5, lat. apic. 8—8.5 ju. T. XXII, f. 16. 



Hyalotheca might be divided into 2 sub-genera: 



A. Mixotaenium, Delponte 1. c. Cells with raised annuli or bands. Nearest to Gym- 



nozvga. 

 Typ. sp. H. mucosa. 



B. Hyalotheca (sens. strict.) Cells plain or indistinctly angled; sides slightly incised or 



undulate, not annulate. Nearest to the Zygnemeae. 

 Typ. sp. H. dissiliens. 



Gen. 30. Pagetophila, Wittr., Mscr. 1883. 



Wittr. in Snöns och Isens Flora, sine descr.! syn.. Chionophila Wittr. 

 Algologists will be glad to see a description of this peculiar genus, and of its 

 single species P. Spångbergiana Wittr. Of course it is unknown in India. 



(A generic locality cannot be assigned, ad interim incertce sedis. W. B. T.). 



Summary of the Desmidieae. 



1. Aneylonema 



2. Mesota-uium 



3. Cylindrocystia 



4. Penium 



f). Closteriura 



6. Spirot.ieuia 



7. Genicularin 



8. Gonatozyon 



J'. Tetmcmorus 



10. Triploceras 



11. Docidium 



12. Dysphiiic-tiuni 



13. Spondylusium 



14. Cosinocladium 



15. Cosmariiim 



16. Euastruin 



Transp 

 K. Sv. Vet. Akad. Handl. 







5 



— 



5 



— 



11 



5 



24 



14 



1 



— 



5 



— 



1 



2 

 51 

 21 



9 



p 



137 

 61 



10 



7 

 1 



35 



17 



o -C 



000 i 000 



Band 25. N:o 5. 







5 



0.77 



5 



0.7 7 



16 



2.44 



38 



5.80 



1 



0.15 



5 



0.7 7 



2 



0.30 



2 



0.30 



61 



9.30 



28 



4.28 



10 



1.52 



172 



26.23 



78 



11.89 



000 



IHJ.O0 



c n u s. 



JoSIli: 



and I 



IIE 



i-3 



o 



3 > r 



r o 



p 



M W 





f c 





"* 





Transp. 



17. Micrnsterias 



18. Xanthidinm 



19. Staurastrum 



20. ArthrdclesiMiis 



21. Onyehonema 



2'J. Sphii-rozosma 



23. Streptoueina 



24. Desmidiiun 



25. Didymopriuiii 



26. Phymatodocis 



27. Leplozosma 



28. Gynmozyga 



29. Hyalotheca 



30. Pagetophila (Wittr. midesrr. I 

 24 Genera specits 



000 



22 



17 



123 



15 



3 



10 



1 



4 



2 



000 



000 



6 



28 



4 



21 



13 



136 



4 



19 



— 



3 



— 



10 



— 



1 



2 



6 



— 



2 



— 



1 



1 



'6 



— 



— 



00.00 



4.28 

 3.05 



20.84 

 2.89 

 0.4C 

 1 52 

 0.15 

 0.92 

 0.30 



0.15 

 0.92 



5:»« 120 (»j« lOO.oo 



20 



