BY G. 1. PLAYFAIR. 147 



Figs.27, 28.— 0. uoduhsa var. audrafli<, n.var.; (27), x 1830; (28), x 900. 



Fig.29.— 0. soHfaria Wittrock,( x 1330). 



Fig.30.— 0. gtihmarina Lagerh.,( x 1330). 



Fig.31.— 0. romfa, n.sp.; (»), nucleus,( x 1000). 



Figs.32, 33.— O. mhtiphf erica, n.sp.; (u), nucleus; (32), x 665; (33), x 1000. 



Plate viii. 

 Figs.l, 2.—0cystis apkulala W. West,( x 1330). 

 Fig.3. ,, ,, var. o6esa, n.var., ( X 1330). 



Figs. 4-6. ,, ,, var. si'mp/tCTor, n.var., ( X 1330). 



Fig. 7. ,, mtJ)hexago7ia, n.sii.,(x \-iW). 



Figs.8-10. ,, Ghodatl, noni.nov. ; (8, 9), free, vegetative cells, (8) 



X 1330, (9) x665; (10), mother-cell, ( x 1000). 

 Fig. 11. — Eremosphoera viridis with autospores of 0. Chodati( x .500). 

 Figs. 12, 13. — 0. amtraliemis, n.sp.; (12) mother-cell, ( x 800); (13), free, 



vegetative cell,( x 1000). 

 Fig. 14. — O. pandurij'ovmh W. West,( x 500). 

 Figs. 15, 16. — 0. ovalis Turner; (15), with digitate chloroplasts, ( x 665); 



(16) with discoid chloroplasts, ( x 500). 

 Fig.s. 17-19. — 0. ocali'< var. mhtruncata, n.var.; (17) mother-cell ( x 665); 



(18, 19) free, vegetative cells,( x 665). 

 Figs. 20-22. — 0. oralis wax. cylindracea, n.var.; (20) as mother-cell to two 



autospores of E. viridis,( x 570); (21, 22) x 665; (o) red oil-globules. 

 Fig. 23. — 0. apicidata var. splendida, n.var.; ( x 900). 



Plate ix. 



Figs.l, 2. — Eremovphiera riridis De Eary; mother-cells with small-sized 

 autospores (diam. 60/x); (1) much inflated ( x 135), (2) very little in- 

 flated, the membrane closely swathed round the four autospores 

 ( X 335); 8-celled specimens in the same condition were also noted. 



Figs. 3-6. — E. riridis var. acuminata, n.var.; (3,5) free, vegetative cells 

 ( X 360), (4) mother-cell ( x 135), (6) one of the autospores ( x 400). 



Figs.7-8. — E. riridis vnv. oralis, n.var.; (7) x 335, (8) showing longitudinal 

 and horizontal sulcte (indicated by dotted lines) in the inner mem- 

 brane ( X 500). 



Figs. 9, 10.— £J. riridis var. doliformis, n.var.; (9) x 270, (10) with apical 

 papilla ( X 380). 



Figs. II, 12.— ii". riridi'< var. nodosa, n.var.; (12) showing inner membrane 

 pitted with shallow scrobicuhi; interiorly, ( x 665). 



Fig. 13. — Oocystis Nordstedtiana; n.sp., ( x 665). 



