ovalis, 97 



parvula, 98 

 Halidrys, 192, 194, 334 



siliqiiosa, 193, 388 

 Halimeda, 96, loi, 102, 297, 306, 307, 



324* 432 

 Halimeda cuneata, 430 



discoidea, 102 



opuntia, 102 



scabrQi 102 



simulans, 102 



tuna, 430 

 Halimione portulacoides, 356 

 Halopteris, 139, 140 



filicinai 126 



funicularisy 140 



hordacea, 126, 140 



scoparia, 139 

 Halosaccion, 325, 335 

 Halosphaera, 259, 261 



viridiSi 262 

 Halosphaeraceae, 261 

 Hamel, Go 132, 135 

 Hammerling, J., 104 

 Hantschia amphroxys, 376 

 Hapalosiphon laminosum, 360 

 Haplobionts, 314 

 Haplodiplonts, 321 

 Haplonts, 314, 321 

 Haplospora, 141 



globosa, 141, 142 

 Haplostichineae, 122, 316, 320 

 Haptera, 124 

 Harpenden, 363, 365, 366 

 Harder, R., 15 

 Hartmann, M., 104, 144 

 Harvey, W. H., 13, 241 

 Harvey ella, 222, 241, 242, 406 



mirabiliSi 241, 242, 428 

 Haustoria, 241 

 Hawaii, 11, 449, 450 

 Helicion pellucidum, 406 

 Heliophiles, 440 

 Heliophobes, 440 

 Helminthocladia, 218 



hudsonii 231, 234 

 Helminthocladiaceae, 227, 231 

 Hemicryptophyceae, 441 

 Hemiphanerophyceae, 441 

 Heribaudiellay 123 

 Herpopytes, 440 

 Hermella, 336 

 Herpostphonia, 337 

 Heterocapsaceae, 260 

 Heterochloridaceae, 260 

 Heterochloridales, 260 

 Heterochloris, 324 

 Heterococcales, 260 

 Heterocyst(s), 279, 280, 287, 288, 289 

 et seq. 



INDEX 463 



Heterogeneratae, 122, 127, 142, 193, 



316,320 

 Heterokontae, 5, 14 

 Heterosiphonales, 260, 264, 266 

 Heterosiphonia plumosa, 405 

 Heterotrichales, 260 

 Heterotrichy, 124, 136, 216, 312 

 Hijikia fusiforme, 336, 450 

 Hildenbrandt, F. E., 238 

 Hildenbrandtia, 222, 238, 323, 325, 

 359, 360, 441 



prototypus, 238 



rivularis, 238 

 Hildenbrandtiaceae, 238 

 HiLL,T.G., 387,411 

 Himanthaliaceae, 206 

 Himanthalia, 194, 200, 206, 207, 215, 

 316,332,342,438,440 



lorea, 207, 388 

 Hindhead Heath, no 



HOLDEHEIDE, W., 396, 397, 4II 



Holland, 453 



Holmsella, 220, 222, 241, 242 



pachyderrna, 241, 242 

 Hormidium, 51, 281, 360, 363, 380 



flaccidum, 5 1 

 Hormogone(s), 280, 287, 288, 290 

 Hormosira, 159, 192, 194, 212, 214, 

 306, 331, 333, 336, 342, 352, 389* 

 390, 397j 411^436 



banksii, 158, 213, 214, 349, 390, 393, 

 408, 409, 410, 425, 426 

 Hormosiraceae, 212 

 Hormothamnion, 429 

 Howland, L. J., 78 

 HusTEDT, F., 273 

 Hyde, M.B., 402, 411 

 Hydrobia ulvae, 406 

 Hydrodictyaceae, 43, 44 

 Hydrodictyon, 12, 31, 39, 40, 44, 45, 

 46, 49, 308, 309, 359, 426, 438 



africanum, 44 



patenaeforme, 44, 45, 46 



reticulatum, 44, 45, 46 

 Hydrurus, 8, 359 



foetidus, 274 

 Hymenoclonium serpens, 230 

 Hypnea, 448 

 Hypnea musciforme, 448 

 Hypnophyceae, 441 

 Hypnospore(s), 19 

 Hypotheca, 269 



Iceland, 434, 435 



Ilea, 162 



Indiana, 364 



Indian Ocean, 429, 431 



Indo-Pacific, 429 et seq. 



Iodine, 174, 217, 425, 444 et seq., 450 



Ireland, 328, 348, 349, 357, 436, 45° 



