654 MB. W. JOSHUA OK BURMESE DESMIBIE^E. 



Figs. 3, 4, & 5. Euastrum flammeum, n. sp. : 3, cell, X600 ; 4, end view, x300; 

 5, side view, X300. 

 6 & 7. Euastrwm truncatum, n. sp. : 6, cell, X600 ; 7, side view. 

 8 & 9. Euastrwm divergens, n. sp. : 8, cell, X450 ; 9, cell, x600. 



10. Euastrum coralloides, n. sp., X 600. 



11, 12, & 13. Euastrum binale, Turp., n. f. crassum: 11, cell, X600; 

 12&13, X2000. 



14 & 15. Euastrum retrorsum, n. sp. : 14, cell, X400 ; 15, side view. 



16, 17, & 18. Euastrum exile, n. sp. : 16, cell, X900; 17, side view, and 



18, end view, x900. 

 19 & 20. Euastrum obesum, n. sp., x330 and 300. 

 21. Sfaurastrum saltans, n. sp., X 500. 

 22 & 23. Staurastrum cyathoides, n. sp. : 22, front view, x 300 ; 23, end 



view, X400. 



24. Staurastrum sexangulare, Bulnh., n. var., X400. 



25, 26, 27, & 28. Staurastrum bifurcum, n. sp. : 25 & 26, X600 ; 27 & 28, 



X300. 



Plate XXIV. 



Figs. 1 & 2. Staurastrum platycerum, n. sp., x400. 

 3. Staurastrum horrescens, n. sp., x400. 

 4 & 5. Staurastrum granulatum, Eeinscb, X400. 

 6 & 7. Staurastrum furcatum, Ehrenb., /3. senarium, Ehrenb. : 6, front 



view, X600; 7, upper markings. 

 8 & 9. Staurastrum bifidum, Ealfs, var. : 8, end view, X 600 ; 9, side view, 



X450. 

 10, 11, & 12. Arthrodesmus Incus, Menegb., vars. : 10 & 11, X400; 12, 

 X300. 



13. Arthrodesmus subidatus, Kurz, n. var. gracilis, X400. 



14. Arthrodesmus arcuatus, n. sp., X300. 



15. Arthrodesmus apiculatus, n. sp. 



16. Xanthidium antilopeum, Kiitz., f. angulatum, n. var., X400. 



17 & 18. Cosmarium cuneatum, n. sp. : 17, cell, X600; 18, oblique view 

 of semicell, X 600. 



19. Cosmarium Botrytis, Menegh., f. indicum, n. var., x400. 



20. Cosmarium par dalis, Cohn, f. minor, n. var., X400. 



21-25. Cosmarium armatum, n. sp. : 21, cell, X500; 22, cell, X900; »nd 



23, X600. 

 26 & 27. Cosmarium inornatum, n. sp., x600. 

 28 & 29. Cosmarium incisum, n. sp., x600. 

 30-34. Cosmarium Euastron, n. sp. : 30, cell, X 450 ; 33, stellate arrangement 



of granules ; 34, side view of granules. 



Plate XXV. 



Figs. 1 & 2. Cosmarium exasperatum, n. sp. : 1, front view, x000 ; 2, end view, 

 X600. 

 3 & 4. Cosmarium spinosum, n. sp. : 3, cell, X450 ; 4, end view. 



