242 G e o r g e V i t c h , Desmidiaceen aus dem Prespasee in Macedonien. 



Long. 36 jx, lat. 25 p., lat. isth. 7 p.. 



70. C. vexatum West — West, Brit. Desm. Tab. XCII. 

 Fig. 4. 



Long. 39 fi, lat. 31 /«, lat. isth. 9 /<. 



VIL Gattung. Calocylindrus De Bary. 



71. ß .{cosmarium) connatus Kirch. — Cooke, Brit. Desm. 

 Tab. XLIV. Fig. 2. 



Long. 66 [X, lat. 48 p, lat. isth. 39 p. 



72. C. curtus (Breb.) Kirch. — Wolle, Desm. U. S. Tab. XV. 

 Fig. 15—16. 



Long. 37 fi, lat. 20 //. 



VIIL Gattung. Scenedesmus Meyen. 



73. Sc. acutus Meyen — Ralfs, Brit. Desm. Tab. XXXL 

 Fig. 14. 



Long. 15 fi, lat. 3 p. 



74. Sc. oblinquus Turpin — Ralfs, Brit. Desm. Tab. XXXL 

 Fig. 15. 



Long. 18 fx, lat. 4 p (einzelner Zelle). 



75. Sc. quadricaudata Turp. — Ralfs, Brit. Desm. Tab. XXXL 

 Fig. 12. 



Long. 18 /j., lat. 6 /.(. 



IX. Gattung. Xanthidium Ehrb.; Ralfs. 



76. X. antüopaeum Breb. — Cooke, Brit. Desm. Tab. XLVL 

 Flg. 2. 



Long. 45 fi, lat. 45 pt, lat. isth. 12 p. 



77. X. fasciculatum var. hexagonum Wolle — Wolle, Desm. 

 U. S. Tab. XXVL Fig. 5. 



Long, cum acul. 63 p, lat. cum acul. 62 p, lat. isth. 15 p. 



78. Xantidiastrum paradoxum Delp. — Delponte, Desm. 

 subalp. Tab. IIL Fig. 27—33. 



Long. 15 p, lat. 21 p, lat. isth. 3 p. 



X. Gattung. Euastrum Ehrb.; Ralfs. 



79. E. hinale (Turp.) Ehrb. — West, Brit. Desm. Tab. 

 XXXVIIL Fig. 28—29. 



Long. 22 p, lat. 18 p, lat. isth. 3 p. 



80. E. hinale forma GutvnnsTci Schmidle --- West, Brit. Desm. 

 Tab. XXXVIIL Fig. 31—32. 



Long. 30 p, lat. 22 p, lat. isth. 5 //. 



81. E. hinale forma Jiians West — West, Brit. Desm. Tab. 

 XXXVIIL Fig.- 33. 



Long. 18 p, lat. 15 p, lat. isth. 3 p. 



82. E. divaricatum Lund. — West, Brit. Desm. Tab. XXXVIIL 

 Fig. 4. 



Long. 33—40 p, lat. 25—27 p, lat. isth. 6 p. 



