INDEX. 



293 



pygmseuin, Sphserozosma, III 73 ; V 

 220, 221, 225 



- Spondylosium, V 220 



var. compression, V 221 



var. monile, V 221 



- Staurastrum, IV 184 



var. obtusum, IV 180 



var. trilineatum. IV 186 

 pyramidata, Ursinella, II 199 

 pyramidatum, Cosmarium, II 199, 



201 



var. angustatum, II 200 



f. intermedia, II 182 



var. stenonotum, 1 1 202 



var. typicum, II IHH 

 Didymidium (Cosmarium), II 



199 

 Euastrum, II 72 



- Staurastrum, V 68 



var. coilon, V 69 



quadragies-cuspidata, Micrasterias, II 



83 

 quadragies-cuspidatum, C< >si na ri u i n , 



II 82, 84 

 quadrangulare, Staurastrum, V 37, 38, 



177 



f. major, V 37 

 quadrangulata, Ursinella, IV 2<> 

 quadrangulatum, Cosmarium, IV 26 

 quadratula, I'rsinella, III 121 

 quadratulum, Cosmarium, 111 121 



- f. javanica, III i\'\ 

 Euastrum (Cosmarium), HI 121 



quad rat um, Cosmarium, III 57, 123 



- var. angustatum, III 59 

 var. genuinum, III 58 



- f. Willei, 11159 

 Desmidium, V 254 



var. irracilis, V 253 



Desmidium (Didymoprium), V 



2,54 

 Didymidium (Cosmarium), III 



58 



Didymoprium, V 254 

 Dysphinctium, III, 58 



- var. Willei, III 59 

 Kuastrum (Cosmarium), III 58 



quadriconmtum, Xanthidium, IV 59 



- f. longispina, IV 56 

 quadridentatum, Cosmarium, I II 133 

 quadrifaria, Ursinella, III 141 

 quadrifarium, Cosmarium, Til 141 



- f. hexasticha III 143 



- f. octasticha, III 143 



- f. polysticha, III 144 

 f. stellata, III 141 



quadrimamillatum, Cosmarium, III 



125 



quadrispinatum, Staurastrum, V 38 

 Quadrum, Cosmarium, IV 20 



Ursinella, IV 20 

 quantillum, Docidium, I 206 

 Quasillus, Cosmarium, III 188 



- var. quadrifera, f. polycrenata , 

 III 240 



Ursinella, III 188 

 quaternaria, Pleurotseniopsis, III 204 

 quaternarium, Cosmarium, III 204 

 quinaria, Ursinella, III 216 

 quinarium, Cosmarium, III 216 



- f. irregularis, III 217 

 ijiiiriferus, Arthrodesmus, IV 101 



- f. compacta, IV 101 



IJaciborskiana, Ursinella, II 137 

 Raciborskianum, Cosmarium, II 137 

 radiata, Micrasterias, II 113 

 rudiosa, Micrasterias, 14; II 95 



var. ornata, II 97 



Ursinella, III 137 

 radiosum, Cosmarium, III 137 

 Ralfsii, Arthrodesmus, IV 95 



- Arthmdia, I 183 



Calocylindrus, IV 43 



- Closterium, I 182 



var. Delpontii, I 184 



var. hybridum, 111, 183, 186 

 var. typicum, I 183 



1 'ismaridium, II 141 



- Cosmarium, 114; II 141 



var. montanum, II 142 



- var. rotundatum, V 268 



var. typicum, II 141 

 Didymidium (Cosmarium), II 141 

 Dysphinctium, IV 43 



var. hexagonum, IV 122 

 Euastrum, II 27 



- Gronatozygon, I 30 



Hyalotheca, V 235 

 Penium, I 101 ; IV 43 



Phyca strum, IV 170 ; V 89 



Pleurotseniopsis (Cosrnaridium), 



II 141 



var. moiitana, II 142 

 ramosum, Asteroxanthium, V 77 

 Kavenelii, Staurastrum, V 70 

 rectangula, Ursinella, III 41 

 rectangulare, Cosmarium, III 54 



var. cambrense, III 55 



var. hexagonum, III 56 

 rectangularis, Ursinella, III 54 

 rectangulum, Cosmarium, III 41 

 rectosporum, Cosmarium, II 197 

 rectum, Docidium, I 212 



