INDEX 



423 



Araguay, River, 295 



Argentine, 55 



Aroideae, 316 



Arrowgrass. See Aponogeton 



Arrowhead, See Sagittaria sagitti folia 



Asia, 295, 298 



Astrakhan, 303 



Auricula, polystely in, 180, 181, 182 



AustraHa, 295, 305 



Awlwort. See Subularia aquatica 



Azores, 295, 333 



Bacteria, 142 



Baltic, 123 



Baltimore, 253 



Bananas, 143 



Band leaves, 11 (Fig. 3), 12, 13 (Fig. 4), 



^4 (Fig. 5), 19, 20. 22, 23, 140, 141 



(Fig. 90), etc. 

 Barclaya, 33 



Bateson, W., on evolution, 334 

 Batrachian Ranunculi. See Ranunculus 



sect. Batrachium, Ranunculus aqua- 



tilis, etc. 

 Batrachospermum, 155 

 Bean, 249 

 Beetles, as pollinators of Lemnaceae, 



80; in utricle of Uiricularia, 93 

 Begonia hydrocotylifolia, 256 

 Belgium, 303 

 Bellis perennis, 165 

 Bengal, no 

 Bermudas, 298 

 Bidens Beckii, 151, 313 

 Biological classification of hydrophytes, 



4-8, 42 

 Birds and dispersal, 35, 298-302 

 Bittersweet. See Solanum dulcamara 

 "Bitter-sweet," Grew on heterophylly 



Jn, 155 

 Black Sea, 302 



Bladderwort. See Uiricularia 

 Bladderwort, Common. See Uiricularia 



vulgaris 

 Blue Nile, 192 

 Bodensee, 322 

 Booiiia, 57 



Bostrychia Moritziana, 114 

 Brasenia peliaia. See B. Schreberi 

 Brasenia Schreberi, 38 (Fig. 20), 205, 



272 

 Brazil, 206, 207, 243, 295 

 Brent Geese, 302 

 Broads, 288 



Brocchinia cordylinoides, 109 

 Bromeliaceae, 108, 109 

 Bruch-Eicheln, 17 

 Brunfels, Otto, 27 

 Bull Nut. See Trapa nutans 

 Bulliarda(Tillaea). affinities, 310; aqua- 

 tic with xerophilous ancestry, 310; 



cleistogamy, 234 

 Bulliarda (Tillaea) aquaiica, 234, 310 



Burton-on-Trent, 211 



Butler, Samuel, 347 



Butomaceae, 157, 248, 313 



Buiomus, 314 



Buttercup, Water. See Ranunculus 



aquatilis. Ranunculus sect. Baira- 



chium, etc. 



Cabomba, anatomy, 37, 38 ; heterophylly, 

 29 (Fig. 14), 146; polystely, 37; re- 

 duced leaves, 338 



Cabomba caroliniana, 338 



Cabomboideae, 38, 309 



Caddice worms, 217 



Calcareous substratum, 286, 287 



Caldesia, heterophylly, 23; turions, 22, 

 225 (Figs. 148, 149) 



Caldesia parnassifolia, 22, 23, 224, 225 

 (Figs. 148, 149) 



California, 123 



Calla palusiris, 167 (Fig. 107) 



Callitrichaceae, 134, 311, 318 



Calliiriche, affinities, 311, 312; altitude, 

 290; annual and perennial forms, 215, 

 216; as coloniser, 299; chlorophyll, 

 absence in epidermis, 164; distribu- 

 tion, 306, 307; flowers, 237 (Fig. 154); 

 fruit, 242, 243; germination, 280; 

 heterophylly, 146, 147 (Fig. 94); land 

 form, 170 (Fig. in), 195; leaf 

 anatomy, 163, 169, 170 (Fig. in); 

 local races, 330; mucilage trichomes, 

 271; pollination, 236, 237; roots, air 

 spaces in, 187; root anatomy, 208, 

 209 (Fig. 138); seeds, 297; stomates, 

 166; vascular strand of axis, 175, 176 

 ^Fig. 114); vegetative reproduction, 

 216; water pores, 267, 268 (Fig. 163) 



Calliiriche auiumnalis, 6, 134, 169, 237, 

 268 (Fig. 163), 307 



Calliiriche stagnalis, 176 (Fig. 114), 208, 

 209 (Fig. 138). 271 



Calliiriche verna, 6, 146, 147 (Fig. 94), 

 163, 166, 169, 170 (Fig. Ill), 187,236, 

 237 (Fig. 154), 306 



Caliha palusiris, 198, 199 (Fig. 129) 



Cam, River, 150, 211, 263 



Cambridge, 150 



Cambridge Botanic Garden, 211 



"Camichi," 300 



"Cammomili," 144 



Campanulaceae, 313 



Canadian Waterweed. See Elodea 

 canadensis 



Canary Islands, 295 



Canna, 244 



Carbon dioxide, derived from sub- 

 stratum, 254; excess of, available for 

 hydrophytes, 254; proportion of, in 

 free and dissolved air, 253 



Cardamine, adventitious budding from 

 leaves, 216, 217 (Fig. 141); land and 

 water forms, 201, 202 (Fig. 133) 



