366 



PLANT-LIFE 



Aquatic Plants, 254, 269 



Aracese, 196 



Araucarias, 188, 233, 244, 245 



Arbor- Vitae, 187 



Arbutus, 215 



Archaean Period, 224 



Archceocalamites, 240 



radiatus, 241 

 Archangel, Yellow, 352 

 Archegoniates, 120-170, 179 

 Archegoniophore, 125 

 Archegonium, 120, 123, 135, 136, 139, 



142, 149, 150, 184 

 Archil, 118 

 Arctium Lappa, 331 

 Arenaria peploides, 264 



serpyllifolia, 361 

 Armeria, 215 

 Aroids, 196 



Arrowhead, Common, 198 

 Arum, 316 

 Arum, Common, 196 

 Arum maculatum, 196, 313 

 Arum, Wild, 313 

 Asci, 114 

 Ascomycetes, 114 

 Ascophyllum nodosum, 75 

 Ascospores, 117 

 Ash, 283, 328 

 Aspen, 211 

 Asperula odorata, 284 

 Aspidistra, 322 

 Asplenium Fabianum, 301 

 Asters, 216 



Atropa belladonna, 342 

 Auxospore, 30, 39 

 Avena sativa, 199 

 Axillary, 205 

 Azaleas, 215 

 Azolla, 156 



Bacilli, 15 



Bacillus subtilis, 16, 17 

 Bacteria, 12, 24, 26, 27, 99, 248, 268, 

 291, 296, 336, 356 



diseases due to, 13 



harmless, 13 



nitrogen -fixing, 13, 268 



position of, 18 



Purple, 15, 16 



Sulphur, 16 

 Bacterium chlorinum, 16 



viride, 16 



Badhamia ulricularis, 9 

 Balsam, 327 



Canada, 190 

 Bamboos, 199 

 Bambusa, 199 

 Banana, 202 

 Barberry, 107 

 Barley, 199, 274 

 Bartsia, 293 

 Basidia, 108, 111 

 Basidiomycetes, 108 

 Basidiospores, 111 

 Bastard Toadflax, 293 

 Beans, 329 

 Bearberries, 215 

 Bee-bread, 316 

 Beech, Common, 211 

 Beeches, 211, 346 

 Beef -steak Fungus, 96 

 Bees, 244, 316 

 Beet, 212, 257 

 Beetles, 316 

 Begonia, 298 

 Bellis perennis, 216 

 Bennettiteae, 246 

 Berberis vulgaris, 107 

 Betula alba, 211 

 Betulaceae, 211 

 Bignonia echinata, 328 

 Bilabiate flowers, 208 

 Bindweed, 209, 215 

 Bipinnate, 146 

 Birch, Common, 211 

 Birches, 210, 211, 304 

 Bird's-foot Trefoil, 361 

 Bird's-nest Orchid, 292 

 Bishopweed, 298 

 Black Bryony, 281 



Poplar, 211 

 Blackthorn, 344 

 Bladderwort, 255, 290 

 Bladder- Wrack, 74, 85 

 Bleeding Agaric, 95 

 Blewits,' 95 



" Bloom " on fruit, 349 

 Blue-Green Algae, 16, 24, 27, 114 

 Bog-Bean, 362 

 Bog-Mosses, 138 

 Bog-Pimpernel, 362 

 Bogs, 138 

 Boletus edulis, 96 

 Boragineae, 343 

 Botrychium lunaria, 155 



