Chareae, 334, also 331 

 Charophyceae, 329, also 2, 65 

 Chelydra serpentina, 47, 143 

 Chironomus, 44 



Chlamydonionadaceae, 69, also 68 

 Chlamydomonas, 69, also 572, 573 

 angulosa, 70; PI. 1 

 Cienkowskii, 70; PI. 1 

 Dinobryoni, 70, also 69; PI. 1 

 epiphytica, 71, also 70; PI. 1 

 globosa, 71, also 69; PI. 1 

 mucicola, 71, also 70; PI. 46 

 polypyrenoideum, 71, also 70; PI. 1 

 pseudopertyi, 72, also 70; PI. 1 

 Snowii, 72, also 70; PI. 1 

 sphagnicola, 72, also 70; PI. 1 

 Chlorallanthus, 250, also 349, 588 



oblongus, 350; PI. 95 

 Chlorangiaceae, 91, also 82 

 Chlorangium, 91, also 575, 579 



stentorinum, 91; PI. 46 

 Chlorella, 236, also 211, 233, 235, 580 

 ellipsoidea, 236; PI. 53 

 vulgaris, 237, also 236; PI. 53 

 Chlorellidiopsis, 356, also 588 



separabilis, 356; PI. 95 

 Chlorine, 45 



Chlorobacteriaceae, 560, also 2, 443 

 Chlorobotrys, 355, also 349, 587, 588 



regularis, 355; PI. 93 

 Chlorochromonas, 344, also 587 



minuta, 344; PI. 93 

 Chlorochytrium, 214, also 579 



Lemnae, 214; PI. 45 

 Chlorocloster, 350, also 349, 587 



pyreniger, 351; PI. 95 

 Chlorococcaceae, 211, also 210 

 Chlorococcales, 209, also 67, 423 

 Chlorococcum, 211, also 236, 573, 578, 580 

 humicola, 212; PI. 45 

 infusionum, 212 

 Chloromoebaceae, 344 

 Chloromonadaceae, 421 

 Chloromonadineae, 42, also 1 

 Chloromonadophyta, 421, also 2 

 Chlorophyceae, 65, also 2 

 Chlorophyll, production index, 36, 37 

 Chlorophyta, 65, also 1, 2, 65, 423 

 Chlorotheciaceae, 361, also 348 

 Chlorothecium, 362, also 348, 361, 588 



Pirottae, 362; PI. 95 

 Chodatella. Sec Lagerheimia 

 Chromulinaceae, 370 

 Chromulineae, 370, also 369 

 Chromulina Cienkowski, 370 

 Chroococcaceae, 444, also 473 

 Chroococcales, 444, also 477 

 Chroococcus, 446, also 444, 458, 591 

 dispersus, 447, also 446; PI. 100 



var. minor, 447; PI. 100 

 giganteus, 447, also 446; PI. 100 

 limneticus, 448, also 446, 447; PI. 100 

 var. carneus, 448; PI. 100 

 var. distans, 448; PI. 100 

 var. elegans, 448; PI. 100 

 var. subsalsus, 449; PI. 100 

 minus, 449, also 446 

 minor, 449, also 447; PI. 100 

 minutus, 449, also 447; PI. 100 

 palUdus, 450, also 447; PI. 100 

 Prescottii, 450, also 25, 446; PI. 100 

 turgidus, 450, also 446, 447, 448: PI. 100 

 varius, 451, also 446; PI. 100 

 Chroomonas, 441, also 589 

 Nordstedtii, 441; PI. 95 

 Chrysamoeba, 382, also 381, 589 



radians, 382; PI. 99 

 Chrysemys picta var. marginata, 47 

 Chrysidiastrum, 382, also 381, 590 

 catenatum, 382; PI. 99 



Chr>socapsa, 384, also 590 

 planctonica, 385; PI. 99 

 Chrj'socapsaceae, 384 

 Chrysocapsales, 384, also 369 

 Chrysomonadales, 369 

 Chrysophyceae, 369, also 2, 342 

 Chrysophyta, 342, also 1, 2 

 Chrysosphaerales, 385, also 369 

 Chrysosphaerella, 373, also 590 



longispina, 374; PI. 98 

 Chrysostephanosphaera, 381, also 590 



globulifera, 381; PI. 95 

 Chrysostomataceae, 385 

 Chrysostrella, 385, also 589 



paradoxa, 385; PI. 97 

 Chrysotrichales, 386, also 369 

 Cladocera, 420, 579 



Cladophora, 135, also 3, 48, 123, 134, 141, 

 476, 498, 500, 554, 584 

 callicoma, 137, also 136 

 crispata, 137; PL 19 

 fracta, 137, also 11, 136; PI. 20 

 var. lacustris, 138; PI. 20 

 var. normalis, 138 

 fa. subsimplex. See C. fracta var. 

 lacustris 

 glomerata, 138, also 11, 136, 137; Pis. 

 20, 21 

 fa. Kuetzingianum, 138: PL 21 

 insignis, 139, also 137; PL 21 

 oHgoclona, 139, also 137; PL 21 

 profunda var. Nordstedtiana, 139, also 

 136, 584; PL 22 

 Cladophoraceae, 135 

 Cladophorales, 134, also 67 

 Closterium, 255 



Closteriopsis, 255, also 234, 579 

 longissima, 255; PL 57 

 var. tropica, 255; PL 57 

 Coccogoneae, 477 

 Coccomyxaceae, 92, also 82 

 Coccomyxa, 92 



dispar, 92 (footnote) 

 Coelastraceae, 228, also 210 

 Coelastrella 229 

 Coelastrum, 229, also 576 

 cambricum, 229; PL 53 

 compositum. See Coelastrum proboscideum 

 microporum, 230, also 229; PL 53 

 proboscideum, 230, also 229; PL 53 

 reticulatum, 230, also 229; PL 53 

 scabrum, 230, also 229; PL 46 

 speciosum, 230, also 229 

 sphaericum, 231, also 229; PL 53 

 Coelosphaerium, 469, also 40, 91, 445, 468, 

 592 

 dubium, 470; PL 106 

 Kuetzingianum, 470, also 471, 473; PL 



106 

 Naegelianum, 470, also 11, 43, 218; PL 



106 

 pallidum, 471, also 470; PL 106 

 Coenogonium, 133 

 Colaciaceae, 387 

 Colaciales, 387 



Colacium, 419, also 387, 388, 575, 579 

 arbuscula, 419; PL 89 

 vesiculosum, 420, also 419; PL 89 

 Coleochaetaceae, 127 



Coleochaete, 127, also 112 124, 553, 583, 

 584 

 divergens, 128, also 129; PL 17 

 irregularis, 129, also 128; PL 17 

 Nitellarum, 129, also 128; PL 18 

 orbicularis, 129, also 128; PL 18 

 pulvinata, 129, also 128; PL 18 

 scutata, 130, also 128, 129; PL 18 

 soluta, 130, also 128; PL 18 

 Collections, viii 

 Conductance, 20, 22 



[967 J 



