278 



INDEX. 



Crux-melitensis, Micrasterias, var. 



superflua, II 116 

 Crystals, I 5 

 Cucumis, Closterium, I 140 



Cosmaridium, II 153 



Cosmarium, II 152 



var. anglica, II 153 



- var. helveticum, II 154 



- var. magnum, II 154 

 var. typica, II 153 



Didymidium (Cosmarium), II 153 



Euastrum (Cosmarium), II 153 



Pleurotseniopsis, II 153 

 Cucurbita, Calocylindrus, III 106 



Cosmarium, I 14 ; III 106 



var. attenuatum, III 108 



f. latior, III 108 



- f. major, III 107 

 Dysphinctium, III 106 



cucurbitinum, Cosmarium, V 267 



- Dysphinctium, V 267 



Penium, I 94 ; V 261, 267 



var. major, I 95 



- var. minor, I 95 



- var. poly morph urn, 1 95 



- var. Scoticum, I 96 

 cumbricum, Staurastrum, V 55 



- var. cambricum, V 56 

 cuneata, Helierella, II 26 

 cuneatum, Euastrum, II 25 



- f. punctata, J.I 26 

 curtum, Closterium, I 97 ; V 267 



- Cosmarium, I 97 ; V 267 

 Dysphinctium, 1 97 ; V 267 

 Penium, I 8, 97 ; V 267 



- f. intermedia, I 98 



- f. major, I 98 



- f. minor, I 98 



- f. minuta, I 98 



- var. obtusum, I 99 

 curtus, Calocylindrus, 1 97 

 curvatum, Staurastrum, V 19, 21 

 cuspidata, Binatella, V 23 

 cuspidatum, Phycastrum, V 23 



- Staurastrum, V 23 



- var. coronulatum, V 26 



- var. dejectum, V 7 



- var. divergens, V 25 



- var. longispinum, V 25 

 var. maximum, V 24 



cuticulare, Penium, I 85 

 cyclica, Ursinella, II 145 

 cyclicum, Cosmarium, I 14 ; 11 145 

 var. aiigulatum, II 146 



- var. arcticum, II 146 



- var. maculatum, II 14l> 



- var. Nordstedlianum, [I 146 



- var. truiicatum, II 147 



cylindricum, Arthrodesnius, V 250 



- Cosmarium, IV 43 



- Desmidium, I 10 ; V 249 



- (Didymoprium), V 250 

 Didymoprium, V 250 

 Hyalotheca, V 250 

 cylindricus, Calocylindrus, IV 43 



- var. hexagona, IV 122 

 Cylindrocystis, I 2, 3, 24, 26, 57 ; V 260 

 Cylindrus, Calocylindrus, var. geiiu- 



inus, I 84 



- var. silesiacus, I 84 



- Closterium, I 84 



- Cylindrocystis, I 84 

 Dysphinctium, I 84 



Penium, I 24, 84 



- var. subtruncatum, I 85 

 cymatonotophorum, Cosmarium, III 



40 



cymatopleura, Ursinella, III 5 

 cymatopleurum, Cosmarium, I 14 ; 111 



5 



- var. Archerii, III 6 

 f. polonica, III 5 



var. Tyrolicum, III 6 

 Cynthia, Arthrodia, I 113 



- Closterium, I 113 



- var. curvatissimum, I 114 

 cyrtocerum, Phycastrum, V 135 



- Staurastrum, V 134, 135 



var. compactum, V 136 



Daaei, Staurastrum, V 25 

 danicum, Cosmarium, III 224 

 Davidsonii, Cosmarium, III 20 

 Debaryi, Calocylindrus, III 62 

 Cosmaridium, III 62 



- Cosmarium, III 61 



- var. turgidum, III 115 



- var. typicum, III 62 

 Dysphinctium, III 106 

 Pleurotseniopsis, III 62 



decedens, Cosmarium, III 43 



- var. boreale, III 43 



- var. carpaticum, III 43 



- var. sinuosum, III 44 

 Euastrum, III 43 



declive, Euastrum, II 48 

 decora, Arthrodia, I 185 



Ursinella, III 135 

 decorum, Closterium, I 184 



- Cosmarium, III 135 



- (Euastrum) Cosmarium, III 135 

 De Ureyi, Mesotsenium, I 48, 49 



- var. breve, I 50 



- f. major, I 49 



- f. tennis, I 50 

 dejecta, Binatella, V 7 



