233 
RA. 
Explicatio iconum. 
a — Cellula vel semicellula a fronte visa. 
br — — - vertice — 
CC == "RER lind FrarRE: Sk FN d, 
gas Å JE 
— Lobus polaris a. a Fang visus. 
Tantum in figg. 17 4',6, 27 a', 28 b,c, 33a,b .granula amylacea 
delineata sad 
Tab. HL 
Fig. 1. Closterium porrectum n. sp. (199/,). 
— 2. Lagoense n. sp. (199/,). 
— 3. res abruptum n. sp. (199/,). 
— å. binale (Turp.) Ralfs form. Lagoensis n. var. (5794). 
— 5. — quadriceps n. sp. (190/ j 
— 6. — um n. sp. (879/,) 
— 7. — stellatum n. sp. (579) 
— 8. — subintegrum n. sp. (199/,) 
— 9. porre i z ( . 
—10: qua sp. (79/,). 
— 11. Micrasterias SK Dk B, ornata n. var. 
12; isa (Bréb.) ørn. ze excisa n. var. a 670/), 20994). - 
— 13. — mad Ralfs (?275/,). 
— 14. — Ree: n. sp. & a SENE 0 VON 
— 15 — ropica n. sp. (759%). 
— 16. — met Bailey y, ornata n. var. (199/,). 
Tab. II. 
— 17. Cosmarium pseudoconnatum n. sad kr 
— 18. — hexagonum n. sp. (199, 
— 19. -— commissurale Bréb. syi crassum n. var. (579;). 
— 20. — conspersum Ralfs, i attenuatum n. var. (!99/,), 
— 21. — urnigerum n. sp. (199/,). 
— 22. S mamilliferum n. sp. (27%). 
— 23. — truncatum n. sp. (99%/,) 
— 24. — pulcherrimum .n. sp. (79/,). 
— 25. — excavatum n. sp. ( 1 
— 26. — galeritum nm. sp- 
— 27. —= pseudogranatum n. sp. (19/1) 
— 28. så porrectum n. sp. (199/,) å 
— 29. — Clepsydra n. sp. (37%). 
— 30: — biauritum n. sp. (579%). 
=— 31: — msi gene n. sp. (?/,). 
—32 — ornatum Ralfs, 8, Lagoense n. var. (57%). 
— 33. — biremum n. sv: 79%) 
