Jack-iii-the-pulpit. See Arisaema 



Kentrosphaera, 214, also 580 



gloeophila, 214; PI. 45 

 Kirchnehella, 257, also 234, 256, 575 

 contorta, 258, also 257; PI. 57 

 elongata, 258, also 257; PI. 58 

 lunaris, 258, also 257; PI. 58 

 var. Dianae, 258; PI. 58 

 var. irregularis, 258; PI. 58 

 obesa, 259, also 257; PI. 58 

 var. aperta, 259; PI. 58 

 var. major, 259; PI. 57 

 subsolitaria, 259, also 257; PI. 58 



Lagenidium, 295 



Lagerheimia, 249, also 234, 251, 578 



ciliata, 250; PL 55 



var. minor, 250; PI. 55 



citrifomiis, 250, also 249; PI. 55 

 var. paucispina, 250; PI. 46 



longiseta, 250; PI. 55 

 var. major, 251; PI. 55 



quadriseta, 251, also 250; PI. 46 



subsalsa, 251, also 250; PI. 55 

 Lagynion, 382, also 345, 374, 381, 589 



ampuUaceum, 383; PI. 97 



macrotrachelum, 383; PI. 97 



reductum, 383; PI. 97 



Scherffelii, 384, also 383; PI. 97 



triangularis, 384, also 383 



var. pyramidatum, 384; PI. 97 

 Lakes 



Acid, acid bog, 14, 25 



Alkaline, 14, 28 



Area (Michigan), 4; (Wisconsin), 4 



Bog, 13, 25 



Basic. See Lakes, hard water 



Drainage, 14, 19 



Eutrophic, 7, 17, 43 



Glacial. See Lakes, origin 



Hard water, 6, 12, 14, 15, 19, 31, 43 



Oligotrophic, 23, 24, 43 



Origin, 5, 14 



Seepage, 14, 19, 22, 23, 26, 27 



Soft water, 6, 7, 12, 14,. 19, 23, 26, 27, 

 32, 33, 41 



Sphagnum bog. See Lakes, bog 



Types, 13, 48 

 Lemaneaceae, 568 

 Lemanea, 569, also .56.5, 586 



fucina, 569; PI. 136 

 Lepocinchs, 404, also 389, 585 



acuta, 405; PI. 89 



costata, 406 



fusiformis, 406, also 405; PI. 89 

 var. major, 406, also 405; PI. 89 



glabra, 406, also 405; PI. 89 

 fa. minor, 406; PI. 89 



ovum, 407, also 405; PI. 89 



Playfairiana, 407, also 405; PI. 89 



sphagnophila, 407, also 405; PI. 89 



Steinii, 406 

 Leucosin, 342, 369, 370, 377, 385 

 Light, 40 



Lyngbya, 497, also 478, 509, 535, 540, 541, 

 592, 593 



aerugineo-caerulea, 498; PI. Ill 



aestuarii, 499, also 497, 498; PI. HI 



Birgei, 499, also 11, 471, 497, 501; PI. 

 Ill 



contorta, 500, also 497; PI. 112 



Diguetii, 500, also 498; PI. 112 



epiphytica Hieronymus, 500, also 497; PI. 

 112 



epiphytica Wille, 500 



gigantea, 502 



Hieronymusii, 501, also 498; PL 112 



Hummelii, 502 



Lagerheimii, 501, also 497; PL 112 



latissima, 501, also 497, 501; PL 112 



limnetica, 502, also 498; PL 112 

 major, 502, also 498, 501, 503; PL 112 

 Martensiana, 502, also 498; PL 112 

 Nordgaardii, 503, also 498, 500; PL 113 

 purpurea, 503, also 498 

 putealis, 503 



spirulinoides, .503, also 497, 498; PL 131 

 Taylorii, 503, also 498; PL 113 

 versicolor, 504, also 498; PL 113 



Mallomonadaceae, 370 

 Mallomonas, 370, also 589 



acaroides, 371, also 370; PL 96 

 var. Moskovensis, 371; PL 96 



alpina, 371; PL 96 



apochromatica, 371, also 370; PL 97 



caudata, 372, also 370; PL 97 



elliptica, 372, also 370; PL 96 



fastigata var. macrolepis, 372, also 370; 

 PL 97 



producta, 372, also 371; PL 97 

 var. Marchica, 373; PL 97 



pseudocoronata, 373, also 370; PL 96 



tonsurata, 373, also 371; PL 97 



urnaformis, 373, also 370; PL 97 

 Marl, 7, 8, 341 

 Marssoniella, 471, also 445, 591 



elegans, 471; PL 107 

 Melosira, 11, 499 

 Meringosphaera, 352, also 349, 587 



brevispina, 352 



spinosa, 352; PL 95 

 Merismopedia, 457, also 445, 592 



aeruginea. Sec Merismopedia glauca 



chondroidea, 458 



convoluta, 458; PL 103 



elegans, 459, also 458; PL 101 

 var. major, 459; PL 100 



glauca, 459, also 458; PL 101 



Marssonii. See Merismopedia Trolleri 



punctata, 459, also 458; PL 102 



tenuissima, 459, also 458; PL 100 



Trolleri, 460, also 458; PL 101 

 Mesogerron fluitans. See Mougeotiopsis 



calospora 

 Micractinium, 287, also 272, 576 



pusillum, 287; PL 66 



var. elegans, 288; PL 66 



quadrisetum, 288, also 287; PL 68 

 Microchaetaceae, 541 

 Microchaete, 541, also 533, 594 



diplosiphon, 541; PL 127 



Goeppertiana, 542', also 541; PL 127 



robusta, 542, also 541; PL 127 



spiralis, 542, also 541; PL 131 



tenera, 542, also 541; PL 127 

 Microcoleus, 505, also 497, 593 



lacustris, 505; PL 113 



paludosus, 505; PL 113 



vaginatus, 506, also 505; PL 131 

 Microcystis, 455, also 445, 468, 493, 495. 

 592 



aeruginosa, 456, also 11, 41, 43, 453, 

 471, 495, 497, 499, 514, 515, 

 528, 558; PL 102 

 fa. major, 456 



var. major. See Microcystis aeruginosa 

 fa. minor, 4.56 



flos-aquae. See Microcystis aeruginosa 



glauca, 457 



ichthyoblabe. See Microcystis aeruginosa 



incerta, 457; PL 102 



pulverea. See Microcystis incerta 

 Microspora, 106, also 28, 366, 383, 540, 582 



amoena, 107, also 106; PL 8 



crassior, 107, also 106; Pi. 8 



elegans, 107 



floccosa, 107, also 106; PL 8 



Loefgrenii, 107; PL 8 



pachyderma, 108, also 106, 107; PL 8 



[970] 



