INDEX. 



295 



seuariuin, Stephanoxanthium, V 175 

 Si-udteriana, Helierella, II 34 

 Sendteriaiium, Cosmarium (Euas- 

 trum), II 34 



Didymidium (Euastruui), II 34 

 Euastrum, II 34 



var. latius, II 35 



setacea, Arthrodia, I I'.t'i 

 setaceum, Closterium, I 190 



var. intermedium, 1 180 

 setigerum, Staurastrum, V 52 

 sexangulare, Cosmarium. 1 1 L 81 



- f. minima, 111 82 

 Didymocladon, V 194 



- Staurastrum, V 194 



- var. Bupenramerarium, V 195 

 sexangularis, I'rsinella. Ill 81 

 sexcostatum, Didymidium (Stauras- 



truni), V 147 



Pleurenteriuin (Staurastrum), V 



147 



.Staurastrum, V 147 



- var. product um, \" 148 



Staurastruui (Pleurenterium), A' 



147 



- Stephanoxanthium, V 147 

 sexnotatum, Cosmarium, 111 227 



\ar. tristriatum. Ill 228 

 Sexual reproduction, I 9 

 sibiricum, Staurastrum, IV 152 



- f. trigona, IV 153 

 sigmoideum, Closterium, 1 153 



- f. major, I 153 

 silesiacum, Staurastrum, V GO 

 Sili(|ua. Closterium, I 154 

 Simii, Cosmarium, III 134 

 similatum, Cosmarium, L\' 10 

 Simonyi, .Staurastrum, V 45, M> 

 sinensc, .Staurastrum, IV 170 



var. hibernicum, IV 175 

 sinostegos, Cosmarium, III 79 



var. obtusius, III 79 

 I'l-sinclla, III 79 

 sinuata, Heterocarpella ; II 12 



.Mirrasterias, II 12 

 sinuosa, Helierella, II 2<> 

 sinuosum, Cosmarium, II 12; 111 44 



var. decedens. 1 1 1 43 

 Dysphmctium, III 44 

 Euastrum, II 20 



- var. reduction, 11 22 



- var. simplex, II 22 



MI -\vdrumeiise, Cosmarium, III 171 

 Smithii, Xanthidiuin, IV 61 



var. collum, IV 63 



var. major, IV 62 



- var. variabile, IV 81 

 Smolandica, Ursinella, II 134 



Smolandicum, Cosmarium, II 134 



- var. angustatum, II 135 

 >Snodoiiense, Euastrum, II 45 

 .Sol Euastrum, II 95 



Helierella, II 95 



- Micrasterias, II 95 



var. brachyptera. 1 1 101 

 - f. glabmiseula, II 102 



- var. ornata, II 97 

 solida. rrsinella, III 17 

 solidum, Cosmarium, III 170 

 sparsipUD/etatum, Dysphiiictium, 1 93 

 Specihc determination of Desmids, 



I 18 



speciosissimum, Cosmarium, III 254 

 s[)et.-iosum, Closterium, 1 119 



- Cosmarium, 111 247 ; V 209 



var. biforme, 1 11 249 



- f. genuina. 111 24S 

 var. inilatum. 111 253 

 \ar. Rostafinskiij III 251 

 var. simplex, III 250 



Dysphiiictium, 111 248 

 Kuastrum (Cosmarium), III 248 

 -|>rctal)ilc. Cosmarium, II I 130 



Kuastrum (Cosmarium), HE 130 

 sph;rrirum, Cosmarium, 111 151 

 sphseroid6um, C'osmarium, 111 178 ; 



IV 3( i 



S))li;.To/.osma, 12: \' 206 

 sphagnicolum, Cosmarium, 1 1 1 71 

 sphalerostidia. I'rsinella, III I7i 

 -|)halerosticliuiii, Cosmarium, 111.176 

 spiniferum, Staurastrum, V 50 

 spinospermum, Penium, I 78 



- f. minor, I 78 



spinosporum, Cosmarium, IV 25 

 spinosurn, Did vmidium (.Stauras- 

 trum), V 174 



Euastrum, II 38 



- Staurastrum, V 173 

 spinulosum, Phycastrum, \' 23 



- Sphserozosma, A' 213 



Xanthidiuin, IV (54 

 spiraliferum, Closterium, I 88 

 Spirotamia, 1 1, 3, 24, 25. 37 

 spirotsenia, Genieularia, 1 36 



- Gonatozygon, I 30 

 SpirotaenieaB, I; 25, 37 

 spirostriolatum, Penium, I 24, 88 



- var. amplification. I 88 

 >S])ondylosium, I 2 ; V 219 

 spongiosa, Binatella, V 70 

 spongiosum, Didymidium (Stauras- 



trum),V'77 



Staurastrum, \' 76 



var. cunibri'-um. \' 79 



var. Grifiithsianum, V 78, 187 



