INDEX 



Figures in heavy type indicate the page at which a detailed description 

 of the class, subclass, group or species is to be found. Numbers in 

 brackets refer to the explanations of illustrations, where also the 

 number of the illustration is given. 



Acanthus, 139 



Acer monspessulamcm, 94 



Achlamydeae, 189, 190 



Acorus Calamus, 36 1 {2^3) 



Adaptations to environment, 22, 58 



,, to function, 22, 30 



Adonis, 50 



Adventitious roots, 16, 25 

 i^stivation, 40 

 Agaves, 304, 305 

 Aizoaceae, 191 

 Ajuga, 178, 186 



ChamcBpitys, 178, 1 86 (188) 

 Ajugoideae, 178 

 Albuminous, 2 

 Alcock, 231 

 Alder, 37, 94, 253, 254 



„ thicket, 86 



„ Willow association, 84 

 Algae, 61, 89, 90 

 Alisma, 27, 369 



„ Plantago aquatica, 370 



(372) 

 Alismacese, 51, 368 

 Alismeae, 369 

 Alkanet, 114 



Allium vineale, 327 (329) 

 Aloe, 65, 319 



Alpine Bindweed, 206 



,, flora, 64 

 Alsinoideae, 191 

 Altitude, 71 



Amaranthacese, 191, 206 

 Amaranth Group, 196 

 Amaryllidaceae, 303 

 Amentiferae, 52, 246, 250, 253 

 American plants, 95 

 Ammophila arenaria, 403 (405) 

 Amoeba, 9 

 Anacharis, 283 

 Ancestral forms, 59 

 Anchusa sempervireus, I16 (118) 

 Anchusese, 114 

 Angiosperms, 19, 52,53,61,91,92, 



93. 270 

 Annual Mercury, 242 

 Annular rings, 33 

 Anther, 19 

 Anther-cells, 19 

 Antheridia, 19 

 Anthyllis, 106 

 Antipodal cells, 19, 20, 21 

 Apetalae, 51, 53, 189 

 Apocarpese, 368 

 Apocynaceae, lOO 

 Aponogetonacese, 374 



