Index 



Diatoma hiemale var. mesodon (Kiitz.) 

 V. H., 285 (fig. 131 G). 



vulgare Bon/, '285. 

 Diatomacese, 260, 281, 284, 285. 

 Diatomaceous Earths, 271. 

 Diatomella Grev., 282. 



Balfouriaua Grev., 283. 

 Diatomin, 2(J4. 

 Diatoms, 5, 260305. 

 Dichothrix /.miard., 337, 338, 339. 



interrupta W. d> G. S. West, 339 

 (fig. 156 C), 340. 



Nordstedtii Born. & Flah., 340. 



Orsiniana (Kiitz.) Born. iO Flah. 



339 (tig. 156 D), 340. 

 Dictyocystis Lu<ierh., 235, 236. 



Hitchcockii (U'olle) Lanark., 236. 

 I>i<'ti/<>neis Cleve, 293. 

 Dictyosphffiriea?, 213, 235 238. 

 Dictyosphasrium Niig., 212, 235. 



Ehrenbergianum Niig., 236. 



oviforme La<ierh., 236. 



pulchellum Wood, 235 (fig. 104), 

 236. 



reniforme BuJn., 236. 

 ' Didyinopriiim Kiitz., 144, 177. 

 Dill, 22. 186. 

 Dillwyn, 1, 256. 

 Dimorphococcus A. Br., 33, 218, 221. 



lunatus A. Br., 221 (tig. 93). 

 Dinobryaceas, 31, 45, 47. 

 Dinobryon Ehrenb., 45, 47. 



cylindricum Imhof, 48. 



cylindricum var. divergens Lemm., 

 47 (fig. 7 A and B). 



elongatum Imhof, 48. 



protuberans Lemm., 48. 



Sertularia'JSftrenft., 47 (fig. 7 C), 48. 



sociale Ehrenb., 48. 

 Diplocolon AVVr/., 322, 324. 



Heppii AVny., 324. 

 Discoidese, 273, 274277. 

 Docidium Breb., 144, 150, 159, 162. 



iixpennn Breb., 153. 



Baculum Brtb., 162 (fig. 57 A C). 



undulatum Bail., 162 (tig. 57 D 



and E). 



Dolichospermum Thwaites, 327. 

 Draparnaldia Bory, 87. 



glomerata (rMf/i.) Ay., 87 (tig. 29), 

 88. 



plumosa (VauL-h.) Ay., 88. 

 Drosera, 129. 

 Dwarf-male, 61. 

 Dysphinctium Nag., 166 168. 



Edwards, 272. 

 Ebreuberg, 265, 271. 

 Elodea, 72, 205. 

 Encyoiiema Kiitz., 299. 



Etiiloderniii <irncile De Toni, 205. 

 Endosphtera Klebx, 199. 

 Endosphseraceaj, 24, 30, 179, 197199. 

 Engelmann, 315. 

 Enteromorpha Link, 30, 9 -I. 96, 97. 



intestinalis (L.) Lint;, '.I? ifig. :'5 L). 

 Entocladia gracilis Ilmm/i., 20.1. 

 Entodesmis Borzi, 31. 

 Epithemia Ureft., 298, 300. 



Argus (Ehrenb.) Kiitz., 2(59, 300 

 (fig. 142 D), 301. 



Argus var. alpestris (If. ,S').) 

 Rabenh., 301. 



gibba A'(V^., 300 (fig. 142 A), 301. 



gibberula Kiitz. \a,r. producta Grim., 

 301. 



tnrgida (Ehrenh.) Kilt:., 300 (fig. 

 142 B and C), 301. 



Zebra (Ehrenb.) Kiitz., 301. 

 Erernosphsera De Bary, 226, 227, 229. 



viridis De Bary, 229 (fig. 99). 

 Etard & Bouilhac, 311. 

 Euachnanthes Scbiitt (sect, of Ach- 



nanthes), 289. 

 Euastropsis Layerh.^ 20, 206, 209, 211. 



Eichteri (Schmiille) L(i;/erli., 211 



(fig. "86), 212. 



Euastrum Ehrenb., 137, 138, 144, 150, 

 164, 211. 



ansatum Rulfx, 165. 



binale (Turp.) Ehrenb., 143, 164 

 (fig. 60 C), 165. 



crassum (Breb.) Kiitz., 165. 



Didelta (Turp.) Balfx, 142, 165. 



elegans (Breb.) Kiitz., 164 (fig. 60 

 A and B), 165. 



gemmatum Breb., 165. 



huraerosum Half*, 142. 



insigne Hass., 165. 



oblongum (Grev.) Ralfx, 164 (fig. 

 60 D), 165. 



pectinatuni Breb.. 165. 



verrncosum Ehrenb., 165. 

 Eudorina Ehrenb., 23, 30, 53. 194. 



elegans Ehrenb., 194 (fig. 77), 195. 

 Etulorhiellu Lemm., 194, 195. 

 Eufrtii/iluria Ealfs (section of Fragi- 



laria), 286. 

 Euglena, 23. 

 Ettmelosira Schtitt (sect, of Melosira), 



275. 

 Eunai-icnla Schiitt (sect, of Navicula), 



293. 

 Eunotia Ehrenb., 261, 288. 



Air it* W. Sm., 288. 



biceps (JP. Nm.) IK.I,., 289. 



fle.rnoita var. liicapitiitii Grun., 289. 



'gracilis (Ehrenb.) Rubenh., 2ss (tig. 

 134 C), 289, 295 (tig. 137 F). 



luuaris (Ehrenb.) Grun., 2s 1 , 1. 



