372 



Raphidium pyrenogerum Chod., 23, 168, 195, 



200, 200, 201. 

 Rhizolenia (Diatomee), 95. 

 Richteriella Lemm., 85, 94, 162. 193. 



— botryoides Lemm., 19H, 193, 194. 



— globosa Lemm., 193. 

 Rivularia, 295. 



Scenedesmus Mey., 21, 73, 79, 89, 91, 162- 



171, 210. 

 Scenedesmus acuminatus Chod., 166, 211. 



— acutiformis Sehr., 215. 



— aculeolatus Eeinsch., 215. 



— acutus Mey., 162, 163, 164, 164, 167, 

 210. 



— alteruans Reinsch., 94. 213. 



— bijugatus Kuetz., 165, 166, 212. 



— brasilieusis Bohl., 215. 



— costatus Schmdl., 18, 92, 94, 171, 172, 

 216, 216. 



— curvatus Bohl., 19, 92, 166, 171, 212, 

 212. 



— denticulatus Lagh., 215, 216. 



— falcatus Chod., 211. 



— hystrix Lagh., 50, 169, 214, 214, 215. 



— incrassulatus Bohl., 211. 



— Naegelii Breb., 214. 



— obliquus Kütz., 94, 210. 



— opoliensis Rieht., vid. add., 19, 50, 92. 



— quadricauda Breb., 19, 28, 33, 50, 213, 

 213, 214, 215. 



— radiatus Reinsch., 213. 

 Sciadium A. Br., 51, 63, 87, 238. 

 Schizochlamys A. Br., 25, 31, 36, 48, 64, 65, 



89, 104, 107, 108, 160, 161, 170, 185. 

 Schizochlamys delicatula West., 185. 



— V. rugosa Debray, 185. 



— gelatinosa A. Br., 31, 185, 185. 

 Schizogoniacees, 20, 43, 62, 341. 

 Schizogonioides, 101, 341. 

 Schizogonium Kütz., 83, 86, 341. 

 Schizogonium Boryanum Kütz., 342. 



— crenulatum Kütz., 344. 



— crispum Gay, 342. 



— Julianum Menegh., 342. 



— murale Kütz., 53, 343. 

 Schizothrix (Cyanophycee), 91. 

 Schroederia Lemm., 94, 194. 



— setigera Lemm., 194, 195. 

 Scotinosphaera Klebs, 89, 245. 



— paradoxa Klebs, 245. 

 Selenastrum Reinsch., 94, 203. 



— acuminatum Lagh., 204, 211. 



— bifidum Benn., 204. 



— Bibraianum Reinsch., 94, 203, 204. 



.Selenastrum Bibraianum Turner non Reinscli., 



203. 

 Selenoderma Bohl., 93, 160, 171, 204 



— Malmeana Bohl, 204, 204. 

 Selenosphaerium americanum Bohl., 204, 236. 

 Siphonacees, 12, 92, 99. 



Sorastrum Kuetz., 50, 94, 175, 177, 178, 236. 

 Sorastrum cornutum Reinsch , 236. 



— crassipinum Bohl., 236. 



— bidentatum Reinsch., 236. 



— echinatum Kütz., 236. 



— inappendiculatum Chod., 175. 



— spinulosum Naeg., 235. 

 Sphaerastrum echinatum Menegh., 236. 

 Sphaerella Somm., 9, 21, 24, 93, 95, 96, 117, 



120, 128, 140. 

 Sphaerella lacustris Wittr., 126, 140, 141, 

 142. 



— nivalis Somm., 141. 



— pluvialis A. Br., 121. 

 Spyrogyra Link., 10, 20, 54, 55, 67, 74. 

 Sphaerocystis Chod., 64, 91, 107, 109, 114, 128. 

 Spliaerocystis Schroeteri Chod., 64, 108. 



114, 115. 

 Sphaerocystis sudetica Chod., 92, 93. 

 Sphaerosii-a Volvox Ehrb., 154. 

 Sphanochaete polytricha Nordst., 252. 

 Stapfia Chod., 14, 16, 22, 24, 26, 60, 65, 107, 



109, 112, 1^5. 

 Stapfia cylindrica (Wahl) Chod., 106, 113, 



112. 

 StauTogenia Kütz., 206. 



— apiculata Lemm., 207. 



— alpina Schmdl., 209. 



— emarginata West., 207. 



— fenestrata Schmdl., 206. 



— Lauterbornei Schmdl., 206. 



— rectangularis A. Br , 206. 

 Stephanodiscus Astraea (Diatomee), 95. 

 Stephanosphaera Cohn, 149. 



— pluvialis Cohn, 149, 150. 

 Stichococcus Naeg., 79, 107, 265, 269. 

 Stichococcus bacillaris Naeg., 269. 



— dissectus Gay, 269. 



— minor Braun, 269. 

 Stichogloea olivacea Chod., 91. 

 Stigeoclonium Kütz., 43, 44, 46, 51, 55, 59y 



63, 68, 88, 89, 318, 319. 



— flagelliferum, 299, 301, 302, 303, 322. 

 Stigeoclonium longipilum Kütz., 320, 32t. 



— lacustre nob. = 43, 45, 46. 



— protensum Kütz, 300, 319, 320. 



— polymorphum, 46. 



— subsecundum Kütz , 321. 



