INDEX. 



277 



Cordanum, Dysphinctium, III 113 

 Cordanus, Calocylindrus, III 113 

 cordatum, Staurastrum, IV 156 

 corniculatum, Staurastrum, IV 163 



var. spinigerum, IV 164 



var. variabile. IV 164 

 Cornu, Arthrodia, I 157 



- Clost<-rium, 1 156, 157 



var. arcum, V 263 



var. /3, I 15ii 



var. siamense, I 157 

 f. tumida, I 156 



- Stauroceros, I 157 

 cornubiense, Euastrum, II -2, 70 



- Staurastrum, V 174 

 cornuta, Micrasteria.s, H 124 

 cornutum, Staurastnnn, \' 31 

 coronata, Ursinella, I V I:; 

 conmatum, ( 'osmarium, 1\' 13 



Docidium, I lit'.) 

 var. nodulosum, I 201 



var. iindulatum, I 2o2 



- Pleurotaenium, I 199 



var. fluctuatum, 1 200 



var. nodulosum, 1 200 



- f. labiata, I 2O2 



var. robustum, I 200 

 Corribense, Cosmarium, ill 120 

 Corriense, Cosmarium, III 133 

 run-upturn. < 'osmarium, 11 130 

 Cosmarica?, I 26, 1!)!' 

 cosmarifonne, Xanthidium, IV 4!) 

 cosmarioides, PleurotaBnium, III 01 



( 'o-irnarioides, .Staurastrum, IV ll'.t, 



161 



Cosmarium, [ 2, :}. II, 24, 27 ; 11 125 

 Cosmocladium, V 197 

 " -mospinosum, Staurastrum, V 72, 



164 

 costata. Arthrodia, 1 121 



- Ursinella, 111 2:}!) 

 costatum, Closterium, I 120 



- Cosmarium, 111 2o ( .t 

 rrassa, Cylindrocystis, 1 14, 59 



- Helirrclla, II 5 

 Heterocarpella, IL 5 

 Penium, [ 5!) 



crassangulatum, Euastrum. 11 70 



var. ornatum, II 70 

 crassicolle, Euastrum, II 71 



var. typicum, II 71 



' T .issjrollis, Helierella, II 71 

 crassiusculum, Penium, I 96 

 crasso-humerosum, Euastrum, II 5 

 crassum, Closterium, I 184 



- Cosmarium, H 5 

 Euastrum, II 5 



var. fi, II 4 



crassum, Euastrum, var. appendicu- 

 latum, II 5 



var. cornubiense, II 8 



var. ma jus, II 5 



var. scrobiculatuui, II 7 



var. Taturnii, II 8 

 crassus, Arthrodesmus, IV 102 

 crenata, Micrasterias, II 85 



Ursinella, IV 35 



crenatum, Cosmarium, I 14 ; IV 35 



var. alpinum, II 149 



- var. bicrenatum, IV 38 



- f. Boldtiana, IV 37 



- subsp. costatum, III 239 



- var. major, IV 35 



- var. psychophilum, IV 35 

 var. Ralfsiana, IV 35 



var. subcrenatum, III 144 



- f. sublaevis, IV 35 



f. tricrenata, IV 35 

 Euastrum, III 144 ; IV 35 



- (Cosmarium), III 14 

 crenulata, Helierella, III 40 

 'ivnulatum, Cosmarium, II 150 



- var. Reinschii, III 86 

 Euastrum, II 150 ; III 40 



(Cosmarium), II 150 



Phycastrum (Stenactinium), V 



110 



Staurastrum, V 110 

 crispulum, Euastrum, II 2, 72 

 cristata, Ursineila, III 139 

 cristatum, Cosmarium, III 139 



Didvmidium (Xanthidium), IV 



71 



llolocanthum, IV 71 

 Phycastrum (Pachyactinium), V 



47 



Staurastrum, V 47, 411 

 Xanthidium, IV 70 



- f. angulata, IV 72 

 var. Delpontii, IV 74 



- var. irla bruin, IV 72 



var. leiodermuni, IV 72 



- var. reniforme, IV 70 



- var. spinuliferuni, IV 73 



- var. uncinatum, IV 73 

 cruciatuui, Cosmarium, IV 47 



- Staurastrum, V 165 

 cruciferum, Cosmarium, I 100 



Dysphinctium, I 100 

 Penium, I 100 



Crux-melitensis, Cosmarium, II 116 

 Euastrum, II 116 



Helierella, II 116 



Micrasterias, II 116 

 var. furcata, II 113 



f. punctulata, II 117 



