tripteris, 394, also 390; PL 86 

 Euglenaceae, 387 

 Euglenales, 387 

 Euglenophyceae, 387 

 Euglenophyta, 387, also 2 

 Euplankton, 3 

 Eutrophic Lakes. See Lakes 

 Excentrosphaera, 241, also 234, 579 



viridis, 241; PI. 46 



Fertilizers and production in lakes, 47 

 Fischerella, 549, also 543, 547, 594 



ambigua, 549 



muscicola, 549; PI. 130 

 Fish, 44, 46, 47 



Death, 39, 44 



Food chain, 45, 49 

 Florideae, 564, also 562 

 Food chain, 45, 49 

 Franceia, 251, also 234, 576, 578 



Droescheri, 251; PI. 56 



ovalis, 251; PI. 56 



Geminella, 99, also 94, 102, 582 



crenulatocoUis, 100; PI. 6 



interrupta, 100; PI. 6 



minor, 100; PI. 6 



mutabihs 101, also 100; PL 6 



ordinata, 101, also 100; PL 24 

 Geology, 7, 8, 10, 12 

 Glaciation, 5, 6, 8, 9, 14 

 Glaucocystis, 473, also 444, 475, 586, 591 



cingulata, 474 



duplex, 474; PL 108 



Nostochinearum, 474, also 475; PL 108 



oocystiforniis, 475, also 474; PL 108 

 Glenodiniaceae, 427 

 Glenodinium, 427, also 425, 590 



annatum, 428; PL 90 



Borgei, 428; PL 90 



Gymnodinium, 429, also 428; PL 90 



Kulczynskii, 429, also 428; PL 90 



palustre, 429, also 428; PL 90 



Penardiforme, 429, also 428; PL 90 



pulvisculus, 429, also 428; PL 90 



quadridens, 429, also 428; PL 90 

 Gloeobotrydaceae, 355, also 348 

 Gloeobotrys, 356, also 355, 588 



limneticus, 356; PL 93 

 Gloeocapsa, 451, also 445, 446, 592 



aeruginosa, 451; PL 101 



aurata, 452 



calcarea, 452, also 451 



punctata, 452, also 451; PL 101 



rupestris, 452, also 451; PL 107 

 Gloeochaete, 475, also 444, 586 



Wittrockiana, 475; PL 108 

 Gloeocystis, 83, also 69, 82, 86, 573, 574, 

 580, 586 



ampla, 84; PL 3 



gigas, 84; PL 3 



major, 84; PL 52 



planctonica, 85, also 84; PI. 3 



vesiculosa, 85, also 84; PL 3 

 Gloeocystopsis limneticus, 249 

 Gloeotaenium, 247, also 234, 577, 580 



Loitelsbergerianum, 248; PL 54 

 Gloeothece, 461, also 445, 465, 466, 591, 

 592 



fusco-lutea, 461 



linearis, 461; PL 102 



var. composita, 462; PL 103 



rupestris, 462, also 461, 466; PL 103 

 Gloeotrichia, 557, also 514, 515, 550, 559, 

 593 



echinulata, 557, also 5, 13, 15, 43, 471, 

 514, 515, 559; PL 134 



longiarticulata, 558, also 557; PL 134 



natans, 559, also 557; PL 134 



Pisum, 559, also 557; PL 134 

 Glycogen, 443 



Golenkinia, 213, also 211, 577, 578 



paucispina, 213; PL 45 



radiata, 213; PL 45 

 Gomphosphaeria, 472, also 445, 592 



aponina, 472; PL 106 



var. cordiformis, 472; PL 106 

 var. delicatula, 472; PL 106 

 var. gelatinosa, 473; PL 106 

 var. multiplex, 473 



lacustris, 473, also 472; PL 106 

 var. compacta, 473; PL 106 

 Gongrosira, 132, also 584 



DeBaryana, 132; PL 19 



lacustris, 133, also 132 

 Goniochloris, 351, also 349, 588 



sculpta, 351; PL 95 

 Goniotrichaceae, 563 

 Gonium, 74, also 572 



formosum, 7 4 



pectorale, 75, also 74; PL 1 



sociale, 75, also 74; PL 1 

 Gonyaulax palustris. See Glenodinium 



palustre 

 Gonyostomum, 421, also 585 



semen, 422, also 1; PL 99 

 Gymnodiniaceae, 425 

 Gymnodiniales, 425 

 Gymnodinium, 425, also 590 



caudatum, 426; PL 90 



fuscum, 426; PL 89 



palustre, 426; PL 107 



Haematochrome, 80, 133, 389 

 Haematococcus, 80 



lacustris, 80, Pis. 2, 3 

 Hapalosiphon, 543, also 547, 594 



aureus, 544, also 545, 546; PL 128 



brasihensis, 545, also 544 



confervaceus, 545, also 544; PL 128 



flexuosus, 545, also 544; PL 128 



hibernicus, 545, also 544; PL 128 



intricatus, 546, also 544; PL 129 



pumilus, 546, also 25, 544, 545; PL 129 

 Hard water lakes. See Lakes 

 Harpochytrium Hyalothecae, 357; PL 93 

 Hemidinium, 430, also 425, 427, 590 



nasutum, 431; PL 90 

 Herposteiron. See Aphanochaete 

 Heterocapsales, 346, also 343 

 Heterochloridales, 343 

 Heterocloniales, 365 

 Heterococcales, 347, also 343 

 Heterocystineae, 509, also 477 

 Heterolagynion Oedogonii, 383 

 Heterosiphonales, 368, also 343 

 Heterotrichales, 365, also 343 

 Holopedium, 460, also 445, 592 



Dieteh, 460 



irregulare, 460; PL 107 

 Homocystineae, 478, also 477 

 Hormidiopsis, 101, also 94, 582 



crenulata, 101 



ellipsoideum, 101; PL 7 

 Hormidium, 97, also 95, 582 



Klebsii, 98; PL 6 

 Hormogonales, 477, also 444 

 Hormogoneae, 477 

 Hormothamnion, 541 

 Hyalobryon, 380, also 376, 589 



mucicola, 380; PL 98 

 Hyalotheca, 345, 359 

 Hydra, 233, 235, 579 

 Hydrocoleum, 504, also 479, 593 



oligotrichum, 504; PL 136 

 Hydrodictyaceae, 219, also 210 

 Hydrodictyon, 219, also 576 



reticulatum, 219; PL 47 

 Hydrographic features, 4 

 Hydroxylamine, 44 



Ineffigiatus. See Botryococcus 

 Isochrysidineae, 374, also 369 



[969] 



