INDEX 



Acacias, 39, 100, 101, 103, 108, 



113-116, 131 

 Acclimatisation, 35 

 Achillea, 54 

 Acrogens, 15, 1 8 

 Aerenchyma, 40 

 Africa, 108, 109, 112-114 

 Africa, South, 112-114, 125 

 Afro-South-American Bridge, 84 

 Agathis, 19, 120, 121 

 Agrology, 45 

 Alder- swamps, 123 

 Algae, 90, 92-94 

 Algarob, 112 

 Aliens, 67, 68, 81 

 Alluvium, 46 

 Alpine plants, 29, 40, 126 

 Altitudinal zones, i, 7o-73, 88, 89 

 Amazon forests, 38, in 

 America, Tropical, no 

 American flora, 83 

 American, North, Desert, 104 

 Andine Region, 112, 116 

 Anemochores, 60, 65, 66 

 Anemophilous plants, 43, 60 

 Angiosperms, 15, 20 

 Antarctic connections, 84, 85 

 Antarctic Forest-region, 118 

 Anti-trades, 41 

 Ants and dispersal, 66 

 Aquatic plants, 33 

 Arch-Helenis, 84 

 Archinotis, 121 

 Arctic- alpine flora, 97 

 Arctic Region, 95-97 

 Arctis, 9 



Area of distribution, 75 

 Armorican flora, 114 

 Ascension, 45, 114 

 Asian, Central, Desert, 103, 104 

 Asturian flora, 114 

 Atlantic Bridge, 83 

 Atlantic flora, 99, 114 

 Atlantis, 83 



Atmospheric moisture, 35-39 

 Australia, 39, 114-116, 125 



Bacteria, 50-52 

 Bad lands, 104 

 Ballast-plants, 61 



Balsam-bogs, 39, 119 



Bamboos, 72 



Baobab, 39, 107, 108, 112 



Barriers, n, 74-78 



Barrigudos, 112 



Bathymetricaldistribution,93,94 



Beeches, 72, 85, 118 



Beech- wood, 129, 130 



Bennettites, 20 



Benthos, 90, 92, 123 



Birds and dispersal, 66, 70 



Bolochores, 63 



Brazil, 105-107, ni, 112 



Bridges, 82-86 



Britain united to Continent, 10 



British flora, 80 



Brongniart, 15 



Buffon, 13 



Burs, 66 



Bush, 113 



Bush- swamp, 123 



Caatinga, 36, 105, 107, 125 



Cacti, 39 



Calcicole plants, 126 



Calcifuge plants, 53, 126 



Calciphobe plants, 53 



Californian Region, 101, 102 



Campos, 112 



Cape Colony, 39 



Carboniferous flora, 12, 1 8 



Cardinalpoints of temperature, 32 



Cardoon, 61 



Censer- action, 63 



Chanar region, 118 



Chapparal, 101, 125, 130 



Chasmophytes, 125 



Chile, 116 



Chino- Japanese Region, 98, 99 



Chomophytes, 125 



Cinchona, 112 



Clay, 49 



Climate, 2, 10, 27, 75 ; insular, 31 



Climates, Continental, 31 



Climatic regions, 5,4! 



Close associations, 130 



Cloud-girdle, 72, 89 



Club-mosses, 14-19 



Commensalism, 56 



Complementary associations, 57 



133 



