194 M. Möbius: Algen (excl. der Bacillariaceen). 



128. Mallomonas caudata Iwan. 1900. Bull. Acad. St. Petersburg V, XI, p. 250, Taf. B. 



Bussland. 



129. Marssoniella elegans Lemm. 1900. Ber. D. B. G. 18, p. 274. Deutschland. 



130. Mastigocladus flagelliformis Schmidle, 1900. Allg. bot. Zeitschr. 1900, Sp.-Ab., p. 4. 



Vorderindien. 



131. M. Hansgirgi Schmidle, 1900. 1. c. 1900, Sp.-Ab. p. 5. Vorderindien. 



132. Melobesia canescens Fosl. 1900. K. N. Sels. Skr. Trondhjem No. 3. p. 6. Japan. 



133. M. caspica Fosl. 1900. Sv. Vet. Ak. Öfv. 1900, No. 9, p. 131. Kaspischer See. 



134. Merismopcdiuw Marssonii Lemm. 1900. Ber. D. B. G. 18, p. 31. Deutschland. 



135. Mesotaenium Hansgirgi Schmidle, 1900. Allg. bot. Zeitschr. 1900, Sp.-Ab., p. 1. Vorder- 



indien. 



136. Neevea repens Batters, 1900. J. of Bot. 38, p. 373, PI. 414. 18—22. England. 



137. Nitaphyllum corallinarum Nott, 1900. Proc. Calif. Sc. III, Bot. II, 1, p. 24, PI. III, 



10. California. 



138. Nostoc Kihlmani Lemm. 1900. Ber. D. B. G. 18, p. 31. Deutschland. 



139. X. rividare Filarsky, 1900. Ann. Wien. Hofmuseum XV, 173. Ungarn. 



140. Nostochopsis Goetzel Schmidle, 1900. Bot. C. 81, p. 417. Ostafrika 



141. N. Hansgirgi Schmidle, 1900. Allg. bot. Zeitschr. 1900, Sp.-Ab. p. 5. Vorderindien. 



142. Oedogonium anomalum Hirn, 1900. Act. Soc. Sc. Fenn. 27, p. 112, T. 10, 55. 



Hispania. 



143. 0- arcyosporum Hirn et Nordst. 1900. 1. c. 27, p. 104, T. 7, 44. America austr. 



144. 0. argenteum Hirn, 1900. 1. c. 27, p. 289, T. 7, 47. America austr. 



145. 0- armigerum Hirn, 1900. 1. c. 27, p. 203, T. 33, 208. America austr. 



146. 0. Australianum Hirn, 1900. 1. c. 27. p. 192, T. 31, 192. Australia, 



147. O. Bengalense Hirn, 1900. 1. c. 27. p. 268, T. 46, 287. Asia. 



148. 0. Bohemicum Hirn, 1900. 1. c. 27, p. 169, T. 27, 154. Austria. 



149. 0. boreale Hirn, 1900. 1. c. 27, p. 275, T. 47, 300. Fennia. 



150. 0. Capense Nordst. et Hirn, 1900. 1. c. 27, p. 293, T. 15, 88. Afripa austr. 



151. 0. confertum Hirn, 1900. 1. c. 27, p. 272, T. 46, 291. Australia. 



152. 0- fabulosum Hirn, 1900. 1. c. 27, p. 114, T. 11, 59. America austr. 



153. 0- flexuosum Hirn, 1900. 1. c. 27, p. 313. T. 48, 310. Hibernia. 



154. 0. Gallicum Hirn, 1900. 1. c. 27, p. 197, T. 32, 201. Gallia. 



155. 0. hians Nordst. et Hirn, 1900. 1. c. 27, p. 227, T. 38, 233. America austr. 



156. 0. implexum Hirn, 1900. 1. c. 27, p. 283, T. 49, 316. Australia, 



157. 0. Indicum Hirn. 1900. 1. c. 27, p. 269, T. 46. 288. Asia. 



158. 0. inerme Hirn, 1900. 1. c. 27, p. 287, T. 2, 10. Gallia. 



159. O. lageniforme Hirn, 1900. 1. c. 27, p. 291, T. 13, 68. America austr. 



160. 0. leiopleurum Nordst. et Hirn, 1900. 1. c. 27, p. 126, T. 14, 79. Africa austr. 



161. 0. margaritiferum Nordst. et Hirn, 1900. 1. c. 27, p. 128, T. 15, 83. America austr. 



162. 0. Martinicense Hirn, 1900. 1. c. 27, p. 134. T. 16, 92. America. 



163. 0. oblongellum Kirchn. 1900. Act. Soc. Sc. Fenn. 27, p. 182, T. 29, 177. Germania. 



164. O. Paidense Nordst. et Hirn, 1900. 1. c. 27, p. 292, T. 14, 80. America austr. 

 166. 0. perspicuum Hirn, 1900. 1. c. 27, p. 273, T. 46. 293. Australia. 



166. 0. poecilospermum Nordst. et Hirn, 1900. 1. c. 27. p. 298, T723, 124. Africa Orient. 



167. 0. porrectum Nordst. et Hirn, 1900. 1. c. 27, p. 186, T. 29, 183. America austr. 



168. 0. pseudacrosporum Wittr. 1900. 1. c. 27, p. 193. T. 32, 196. Suecia. 



169. 0. pulchrum Nordst. et Hirn, 1900. 1. c. 27, p. 312, T. 48, 309. America austr. 



170. 0- pungens Hirn, 1900. 1. c. 27, p. 199, T. 32, 203. America bor. 



171. 0. rigidum Hirn, 1900. 1. c. 27, p. 237, T. 40, 244. America austr. 



172. O. rupestre Hirn, 1900. 1. c. 27, p. 168, T. 26, 152. Austria. 



173. 0. semiapertum Nordst. et Hirn, 1900. 1. c. 27, p. 250, T. 42, 262. America austr. 



174. Ö. simplex Hirn, 1900. 1. c. 27, p. 158, T. 24, 135. America austr. 



175. 0. Sol Hirn. 1900. 1. c. 27, p .303, T. 28, 164. America austr. 



176. 0. spectabile Hirn, 1900. 1. c. 27, p. 284, T. 49, 317. Australia. 



