Index 



Pseudulvella, 287, 296. 

 americana, 297. 

 applanata, 298, 299. 

 cousociata, 296, 297, 298; figures 



slio^ving, opp. 346. 

 prostrata, 296, 297; figures show- 

 ing, opp. 330. 

 Radaisia, 21, 26, 45. 

 clavata, 46, 48 ; figures showing, opp. 



128. 

 epiphytica, 46, 49; figures showing, 



opp. 128. 

 Gomontiana, 45. 

 Laminariae, 46; figures showing, 



opp. 128. 

 subimmersa, 46, 47; figures show- 

 ing, opp. 128. 

 Rhizoclonium, 180, 181, 207. 

 implexum, 182, 183, 184. 

 Kerneri, 182, 185. 

 lubricum, 181, 182, 185; figures 



showing, opp. 326. 

 riparium, 182, 183. 

 var. implexum, 184. 

 var. polyrhizum, 182. 

 f. validum, 185. 

 tortuosum, 182, 185, 186. 

 Eivularia, 105. 

 atra, 106, 107. 



var. coadunata, 107. 

 var. confluens, 106, 108. 

 var. hemisphaerica, 107; figures 

 showing, opp. 138. 

 Biasolettiana, 106. 

 Contarenii, 97. 

 mamillata, 106, 109; figures show-. 



ing, opp. 134. 

 nitida, 106, 108. 

 parasitica, 98. 

 Ri^nlla^iaccae, 51, 93. 

 Eivularieae, 93. 

 Schizogoniaceae, 275. 

 Schizogoniales, 142, 275. 

 Schizogonium, 275. 

 laetevirens, 286. 

 Schizophyceae, 3. 

 Schizosiphon eonsociatus, 95, 

 Schizotricheae, 83. 

 Scotinosphaera, 147. 

 Scytosiphon erectus, 259. 

 Setehell, W. A., 1-138, 139-374. 

 Siphonales, 142, 153. 

 Siphonocladeae, 179. 

 Siphonocladiales, 142, 179. 

 Sirosiphoniaceae, 109. 

 Spirulina, 53, 55. 



major, 56 ; figure showing, opp. 124. 

 subsalsa, 57. 

 f. oceanica, 57. 

 Spirulineae, 53. 

 Spirulinoideae, 53. 

 Spongodium, 167. 



Spongomorpha, 180, 220, 221, 222. 

 areta, 222, 223, 224. 

 f. conglutinata, 229. 

 var. limitanea, 228. 

 var. pulvinata, 229. 

 coalita, 222, 225, 230, 231; figure 

 showing, opp. 340 ; plate show- 

 ing, opp. 372. 

 duriuscula, 222, 225, 226. 

 Hystrix, 222, 224, 225. 

 lauosa, 221. 

 Mertensii, 227, 228. 

 saxatilis, 222, 226, 228. 



var. Chamissonis, 227. 

 spinescens, 229, 230, 231. 

 Stigonemaceae, 109. 

 Stigonemataceae, 51, 109. 

 Stigonemeae, 109. 

 Symploca, 53, 80. 

 aeruginosa, 81, 83. 

 atlantica, 82. 

 elegans, 81. 

 funicularis, 81, 82 ; figure showing, 



opp. 136. 

 hydnoides, 81; figures showing, opp, 



124. 

 laeteviridis, 83. 

 Synechoeoccus, 6, 7. 



curtus, 7 ; figure showing, opp. 124. 

 Synechocystis, 6. 



aquatilis, 6 ; figure showing, opp. 

 124. 

 Tetranema, 273. 



pereursum, 274. 

 Trentepohlia, 305. 

 odorata 



var. umbrina, 306. 

 umbrina 



var. quercina, 306. 

 Tubularia, 244. 

 Ulothrix, 282, 283. 



flacca, 196, 283, 284, 285. 

 implexa, 283, 284. 

 laetevirens, 283, 286. 

 pseudoflacca, 283, 284, 285. 

 f. major, 285. 

 f. maxima, 285. 

 f. minor, 285. 

 subflaccida, 283. 

 Ulotrichaeeae, 281, 282. 

 Ulotrichales, 142, 281. 

 Ulva, 233, 260, 261, 262. 



angusta, 262, 264; plate showing, 

 opp. 352 ; figure showing, opp. 

 360. 

 aureola, 234. 

 californica, 262, 264, 271, 

 compressa, 251. 

 conglobata, 270. 

 f. densa, 270. 

 daetylifera, 263, 272; figure show- 

 ing, opp. 350, 

 decorticata, 172. 



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