INDEX. 



567 



Schizosiphon, 147, 178. 



Sciadium, 187, 209, 260. 



Scytonema, 146, 147, 178, 186. 



Sirogonium, 288. 



Spermosira, 146. 



Sphaeroplea, 164, 271, 281. 



Sphaerozyga, 146. 



Sphenella, 411. 



Sphenosira, 413. 



Spirogyra, 135, 175, 180, 196, 201, 



224, 239, 241, 244, 281, 289, 300. 

 Staurocarpus, 134, 281, 296. 

 Stauroceras, 287. 

 Stauroneis, 422. 



Staurospermum, v. Staurocarpus. 

 Stigeoclonium, 139, 156, 163, 183, 



208, 224, 360, 498. 

 Striatella, 466. 

 Surirella, 396. 

 Syncyclia, 410. 

 Synedra, 399. 



TabeUaria, 470. 

 Tabularia, 402. 

 Terpsinoe, 472, 512. 

 Tessella, 466. 



Tetmemorus, 291. 

 Tetrachococcus, 258. 

 Tetracyclus, 469. 

 Tetraspora, 132, 209. 

 Tolpothrix, 147, 186. 

 Triceratium, 487. 

 Tripodiscus, 482. 



Ulothrix, 125, 148, 156, 159, 175, 

 184, 200, 208, 223, 250, 360, 

 498. 



TJlnaria, 400. 



Ulva, 125, 184, 250. 



Urococcus, 178, 230. 



Vaucheria, 128, 140, 157, 163, 174, 

 183, 209, 212, 221, 251, 296. 



Volvocinea?, 158, 159, 208, 216, 

 250. 



Zygnema, 175, 288. 



ZygnemaceaB, 133, 135, 164, 174, 



180, 287, 359. 

 Zygogonium, 177, 288. 

 Zygoceras, 486. 



