276 



INDEX. 



circulare, Euastrum, var. Ralfsii, 

 II 22 



- var. sinuosum, II 20 

 circularis, Helierella, II 27 



- Ursinella, II 136 

 clavatum, Docidium, I 211 



Pleurotsenium, I 211 

 claviferum, Staurastrum, V 72 

 clepsydra, Cosmarium, III 98 



- Staurastrum, IV 152 



var. sibiricum, IV, 119, 152 



- f. trigona, IV 153 

 Clevei, Cosmarium, V 267 



Dysphinctium, I 87 ; V 267 

 Penium, I 87 ; V 261, 267 



- var. crassum, I 88 



- Staurastrum, V 92, 177 

 closteridia, Endospira, I 39 



Palmoglcea, I 39 



- Spirotaenia, I 39 

 Closteriea?, I 26, 106 

 closterioides, Penium, I 73 



- f. interrupts, I 74 



- var. Navicula, 1 75 

 Closterium, I 1, 3, 109 

 coarctatum, Cosmarium, III 69 



Desmidium, V 252 



- var. cambricum, V 252 



- var. gracileps, V 253 

 Desmidium (Didymoprium) V 



252 



- Staurastrum, IV 139 



- var. subcurtum, IV 139 

 Collecting of Desmids, I 15 

 coloratum, Closterium, I 152 

 commisurale, Cosmarium, III 154 



- var. acutum, III 155 



- var. crassum, III 155 

 Didymidium (Cosmarium), III 



154 



Euastrum, III 154 



commissuralis, Heterocarpella, III 

 154 



- Ursine! la, III 154 

 compressum, Desmidium, V 209. 250 

 concinnum, Cosmarium, III 94 



- var. laeve, III 95 

 Didymidium (Cosmarium), III 95 

 Euastrum, III 94 



- Xanthidium, IV 86 



- var. Boldtiana, IV 87 

 condensata, Spirotaenia, I 38 * 

 conferta, Helierella, II 88 



- Micrasterias, II 88 



- var. hamata, II 90 

 confusa, Ursinella, III 203 

 confusum, Cosmarium, III 203 



- subsp. ambiguum, III 199 



var. regu- 



confusum, Cosmarium, 



larius, III 199, 203 

 connatum, Cosmarium, III 25 



var. pseudoconnatum, III 27 



- var. truncatum, III 26 



Dysphinctium, III 25 



- Staurastrum, V 15 

 connatus, Calocylindrus, III 25 



- var. minor, III 28 



- var. typicum, III 25 

 conspersa, Ursinella, IV 14 

 coiispersum, Cosmarium, IV 13 



- var. latum, IV 15 



- var. Quadrum, IV 20 



- var. Ralfsii, IV 14 



- var. rotundatum, IV 16 



- var. subrotundatum, IV 17 

 conspicuum, Staurastrum, IV 143 

 constrictum, Cosmocladium, V 198, 



200 



Dictyosphserium, V 198 

 contortum, Staurastrum, var. pseudo- 



tetracej'um, V 122 

 contracta, Ursinella, II 170 



- Cosmarium, II 170 



- var. Cracoviense, II 174 



- var. ellipsoideum, II 172 



- var. Gartanense, II 173 



- f. Jacobsenii, II 171 



- var. silesiacunij II 170 

 controversum, Cosmarium, IV 9 



- Staurastrum, V 160, 162 



- Xanthidium, IV 59 



- var. planctonicum, IV 60 

 controversus, Arthrodesmus, IV 103 

 convergens, Arthrodesmus, IV 106 



- f. curta, IV 107 



- var. incrassatus, IV 109 



- f. minor, IV 107 



- var. subulatus, IV 109 



- f. typica, IV 107 



Cosmarium, IV 107 

 Didymidium, V 3 



- (Staurastrum) var. ellipticum, 

 IV 107 



B. trigonum, V 3 

 Euastrum, IV 107 

 Euastrum (Tetracanthium) IV 

 107 



Scenodesmus, IV 107 



- Staurastrum, IV 107 



- var. armigera, IV 107 



- var. inermis. II 176 



- Xanthidium, IV 107 

 Corbula, Cosmarium, III 183 



- Ursinella, III 183 

 Cordanum, Closterium, I 145 



Cosmarium. Ill 113 



