418 



SUBJECT INDEX 



Holsteinsborg 290, 292 

 Honckenya 195 



diffusa 196 

 Hops Island 99 

 Hordeiim 363 

 Hornafjordur 16,83,319 

 hornbeam 112 

 Hornsound 112 

 horsetails 200 



hot desert belt, in Paleozoic 13 

 hot springs, in Svalbard 101, 102, 104 

 Howascolex 1 38 

 Hredavatn 5 

 Hreppar 360 

 Hriitafjordur 362 

 Hvalbiarfjordur 37 

 Hvalfjordur 306, 307, 311, 314, 319 

 Hvalvatn 384 

 Hvannhagi 37 

 Hverfjall 381 

 Hudson Bay 122 

 Hudson Bay Lowlands 118 

 Hudson Strait 338, 343, 347 

 human traffic and dispersal 173 

 humic soil 227 

 humid climate 227, 229 

 humid and dry periods 226 

 humus and postglacial survival 229 

 humus-free soil 227 

 Hunavatnssysia 311 

 Huperzia Selago 214 

 Huronian Glaciation 12 

 hydrobiotite 279, 343 

 hydrochlorous dispersal 76, 162, 177,224, 



304 

 Hydrocotyle vulgaris 66 

 hydrophytes 224 

 Hydroporus nigiita 82 

 Hyla arboiea 212 

 Hypnuin cuspidal uiu 192 

 Hypshhermal Period 168, 169, 181, 203, 



223, 226, 230, 251, 270 



Ice Ages 12, 13, 201, 209, 215, 216, 228, 



229, 231, 303, 305, 367 

 ice divide 326, 357 

 icefloe transport 229 

 icefree refugia 17, 18, 105, 234, 251, 263, 



269, 305, 320, 321, 323, 342, 347, 349, 



391 

 ice islands 72 

 ice regression 209 

 icesheets, thickness 322, 358 

 ice surface slope 323 

 Iceland Iff, 16, 29, 30, 46, 173, 179, 185, 



190, 193, 195, 217, 243, 282, 290, 294, 



337, 395, 396 



Iceland, climate 14 



dispersal of flora 211,304 



extension of glaciation 303, 304 



fauna 74, 81, 174, 181. 194, 195, 304 



flora 45, 46, 54, 66, 72, 74, 79, 8 1 , 89, 96, 

 174, 181, 194, 195, 233, 236, 298, 304, 

 306; cf. Icelandic flora 



geographical position 75, 189, 190, 363 



geology Iff", 80, 187, 358, 359 



impact of Norse colonists on flora 1 74 



Interglacials 17, 188, 305, 377fl" 



marine transgression 360, 361 



Mid-Ocean Ridge in 21,22 



Pleistocene deposits 5, 188, 377fT 



pollen species 9 



pollen zones 364 



raised beaches 360, 361 



refugia 168, 304, 306, 357 



soil erosion 362 



Tertiary history Iff", 14, 357, 394 

 Iceland-Faeroe Ridge 26, 243 

 Iceland-Greenland Palearctic elements 81 

 Iceland-Greenland Ridge 25 

 Icelandic flora 



apocrats 371 



cytological investigations 303 



its distribution 306,313,314 



its elements 1 79, 1 86, 297, 298, 299, 300, 

 301, 302, 303, 304, 306 



its history 299 



its species number 297, 303, 355 

 Ilex 15, 117, 127 

 Ilyogenia 138, 144 

 immigrant weeds 222, 224 

 immigration 



of Icelandic flora 304 



of Scandinavian flora 221 



speed 226 

 interglacial deposits in Iceland 17, 81, 



188, 305, 377, 386 

 interglacial flora 245, 261 

 introduced plants 



in Iceland 301 



in Newfoundland 174 



in North Atlantic area 45, 66 



occasional 72 

 introgressive hybridization 225 

 intrusions, in Faeroes 31, 36 

 Iphigera 1 67 



Irano-Turanian distribution 212 

 Iraqi Kurdistan 211,212 

 Ireland, basalt 80 

 Iron Age agriculture 225 

 irregular meiosis 280 

 Isachsen Island 202 

 Isafjordur 318 

 Isfjord 101, 102 



