INDEX. 



[Synonyms are printed in italics, and the numbers in strong type 

 refer to the descriptions of the genera, families, orders, etc.] 



Acanthococcus Lagerh., 203. 

 Achnanthacese, 289, 290. 

 Achnanthes Bory, 263, 289. 



coarctata Breb., 290. 



exilis Kiitz., 290. 



flexella (Kiltz.) Breb., 269 (fig. 

 125 B), 290. 



Hungarica Grun., 290 (fig. 135 

 A C). 



linearis W. Sm., 290. 



longipes C. Ag., 268. 



microcephala Kiltz., 290. 

 Achnanthidium Kiitz. (sect, of Achnan- 

 thes), 289, 290. 



Achnanthoideas, 280, 289291. 

 Actinastrum Lagerh., 218, 224. 



Hantzschii Lagerh., 225. 

 Ajuga, 199. 

 Akinetes, 15. 

 Akontce, 32. 

 Alocasia, 55. 



Alternation of generations, 18. 

 Amblystegium exannulatum, 4. 



falcatum, 4. 



glaucum, 4. 



scorpioides, 4. 



Ammatoidea W. & G. S. West, 38, 337, 

 341. 



Normanii W. & G. S. West, 341 



(fig. 158), 342. 

 Amoeba, 4, 145, 230. 

 Amphicampa Ehrenb. (1849), 288. 

 Amphicampa Kabenh. (1864), 296. 

 Amphipleura Kiitz., 263, 292, 295. 



pellucida Kiitz., 295 (fig. 137 C). 

 Amphiprora Ehrenb., 291, 292, 296. 



ornata Bail., 296. 



paludosa W. Sm., 296 (fig. 138 



B and C). 

 Amphithrix Kiitz., 338. 



janthina (Mont.) Born. &Flah.,338. 



W. A. 



Amphora Ehrenb., 298, 299. 



ovalis Kiitz., 269, 299 (fig. 141 



B and C), 300. 



ovalis var. pediculus Kiitz., 300. 

 Anabana Bory., 311, 312, 314, 317, 325, 



327. 



circinalis Rabenh., 328. 

 Flos-aquas Breb., 328. 

 intequalis (Kiitz.) Born. < Flah., 



328 (fig. 150 A D). 

 oscillarioides Bory, 328. 

 Ancylonema Berggr., 144, 149. 



Nordenskioldii Berggr., 5, 51. 

 Androgonidia, 191. 

 Androsporangium, 61. 

 Androspore, 61. 

 Ankistrodesmus Corda, 159, 218, 221, 



222225. 



acutissimus Arch., 222, 223. 

 biplex (Reinsch) nob., 224. 

 convolntus (Rabenh.) nob., 224. 

 falcatus (Corda) Ralfs, 53, 223 (fig. 



94 A), 

 falcatus var. acicularis (A. Br.) 



nob., 223 (fig. 94 B and C). 

 falcatus var. duplex (Kiitz.) nob., 



223. 

 falcatus var. mirabilis nob., 223 



(fig. 94 E), 224. 

 falcatus var. spiralis (Turn.) nob., 



224. 



falcatus var. spirilliformis nob., 224. 

 falcatus var. tumidus nob., 223 (fig. 



94 D), 224. 



fusiformis Corda, 222, 223. 

 Pfitzeri (Schroder) nob., 223 (tig. 



94 G and H), 224. 

 setigerus (Schroder) nob., 223 (fig. 



94 F), 224. 

 Anodonta, 4. 

 Anorthoneis Grun., 290. 



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