292 



INDEX. 



pseudoconnatum, Cosmarium, var. 



constrictum, III 29 

 var. ellipsoideum, III 28 



Dysphinctium, III 27 

 pseudoconnatus, Calocylindrus, III 27 



- Pleurotseniopsis, III 27 

 pseudocrenatum, Staurastrum, V 75 

 pseudocuspidatum, Staurastrum, V26 

 Pseudodianse, Closterium, I 132 

 pseudoexigua, Pleurotseniopsis, III 65 

 pseudoexiguum, Cosmaridium, III 65 



- Cosmaiium, III 65 



- var. angustatum, III 65 



- Cosmaiium (Pleurotaeniopsis), III 



65 



pseudofontigenum, Cosmarium, II 148 

 pseudofurcata, Helierella, II 113 



- Micrasterias, II 113 

 pseudofurcigerum, Staurastium,V 191 

 pseudomargaritiferum, Cosmarium, 



III 165 

 pseudonitidulum, Cosmarium, II 195 



- var. ma jus, II 160 



- var. validum, II 196 

 pseudopelagicum, Staurastrum, I 14 ; 



V 107, 125 



- var. bifurcatum, V 107 

 pseudoprotuberans, Cosmarium, III 



82 



- var. alpinum, III 83 

 var. Kirchneri, III 82 



Ursinella, III 82 

 pseudopyramidata, Ursinella, II 201 

 pseudopyramidatum, Cosmarium, II 



201 



- var. minus, II 201 



- var. stenotum, II 202 

 var. variolatum, II 203 



pseudoralfsii, Cosmarium, IV 122 

 Pseudoregnesii, Cosmarium, III, 39 

 pseudorthopunctatum, Cosmarium, 



III 179 



Pseudosebaldi, Staurastrum, V 113, 

 116 



var. bicorne, V 117 



subsp. duacense, V 116 



- var. simplicius, V 114 

 var. tonsum, V 117 



pseudostreptonema, Desmidium, V 



244 

 pseudotetracerum, Staurastrum, V 



122, 124 



pterosporum, Staurastrum, V 14 

 pulchella, Helierella, II 46 

 pulchellum, Cosmocladium, V 200 

 Euastrum, II 46 



- var. retusum, II 47 



Sphserozosma, V 227 



pulchellum, Sphserozosma (Spondy- 

 losium), V 226 



Spondylosium, V 227 



- var. pyramidatum, V 228 

 pulcherrima, Ursinella, III 245 

 pulcherrimum, Cosmarium, III 245 



- var. truncation, III 246 



- var. typica, III 245 

 pulchrum, Sphaerozosma, var. planum, 



V 222 



- Spondylosium, V 223, 224, 245 



- var. planum, V 225 



- var. triquetrum, V 225 

 punctulata, Ursinella, III 207 

 punctulatum, Cosmarium, III 206 



var. brasiliense, III 211 



var. granulusculum, III 212 



- var. Klebsianum, III 211 



- var. ornatuni, III 211 



- var. regulare, III 211 



var. rotundatum, III 211 



var. subpunctulatum, III 209 



- var. typicum, III 207 



- Cosmarium, III 170 

 Didymidium (Staurastrum), 



180 



- var. majus, f. alternans, 

 170 



- Staurastrum, IV 179 



- f. contorta, IV 180 



- var. coronatum, IV 184 



- f. elliptica, IV 186 



- var. Kjellmani, IV 182 



- var. muricatiforme, IV 186 



- var. pygmaeum, IV 184 



- f. trilineata, IV 185 



- var. striatum, IV 186 



- var. subproductum, IV 182 



- var. subrugulosum, IV 167 



- var. turgescens, IV 167 

 pungens. Staurastrum, V 44 

 purpureum, Mesota3nium. I 6, 55 

 pusilla, Arthrodia, I 162 



- Ursinella, III 56 

 pusillum, Closterium, I 162 



var. major, I 163 

 var. minor, I 162 



- var. monolithum. I 163 



- Cosmarium, III 66 



var. retusum, III 66 



Cosmocladium, V 201 

 Euastrum, III 66 



pycnochondra, Ursinella, III 244 

 pycnochondrum, Cosmarium, III 244 

 pygmsea, Ursinella, III 74 

 pygmseum, Cosmarium, III 73; V 

 221 



- var. Schliephackianum, III 74 



