INDEX 



Acer Pseudo-Plalanus, 222 

 Acquired characters, 72 

 Aero per a, 95 

 Adianlum, 9, 21, 22 



coticinnum, 25 



emarginatum, 126 

 Africa, 145 



Agapanthiis umbellatus, 229 

 Agassiz, Louis, 85 

 Agassiz's Hypothesis, 84 

 Agalhis, 232 



auslralis, 233 



Age and Area, Hypothesis, of, 1 76 

 Aleiirites moluccar.a, 163 

 Algae, distribution of, 1 76 

 Alternation, homologous, 135 



of generations, 132 



ontogenetic hypothesis of, 136 

 Ambrosia crithmifolia, 149 

 Anaphase, 36 



Anatomy, evidence from compara- 

 tive, 127 



results of the method of com- 

 parative, 129 

 Andes, 149 

 Angiopteris, 95. 203 



evecla, 204 



Angiosperm, primitive, 225 

 Angiosperms, ancestors of the, 210 

 Anisosorus hlrsiitits, i 

 Annulus, 10 

 Antheridia, 18, 22, 23 

 Anthostrobilus, 232 

 Apical cell, 126 

 Aralia, 156 

 Archegoniates. 130 



17 2 57 



Archegonium, 18, 21, 24 



Archigymospsermce, 245 



Arthrophyta, 245 



Ascaris, 38 



Ash, 113 



Aspidium Filix-mas, n 



Autochthonous hypothesis, 142 



Azolla, 82 



Azores, 149, 150 



Bananas, 113 



Barberry family, 171 



Beagle, 145 



Bean pond, 186 



Beans, 66, 104, 105, 107 



Bennetti tales, 211 



Bcnnettites, 214 



Berberidacese, 171 



Bibliography, 252 



Biometry, 54 



Biophors, 75 



Birds, dispersal by, 149 



Blakeslee, 52 



Blue eyes, 69 



Blue rose, 73 



Bolivia, 149 



Boston fern, 16, 109, 113 



Botany, the major problem of, 84 



Botrychinm Lunaria, 128 



Boveri, 74 



Bowenia, 214 



serrulata,. 203 

 Bower, Professor, n 

 Bracken fern, 2 

 Brake, 2 

 Brassica oleracea, 113, 124 



