One species waterwheel plant

Usage examples of aldrovanda.

Dionaea and Aldrovanda, through the closing of the blades of the leaf.

In Aldrovanda it appears to be the basal parts alone which contract and carry with them the broad, thin margins of the lobes.

The three varieties or closely allied species of Aldrovanda, like so many waterplants, have a wide range from Central Europe to Bengal and Australia.

The parent form of Dionaea and Aldrovanda seems to have been closely allied to Drosera, and to have had rounded leaves, supported on distinct footstalks, and furnished with tentacles all round the circumference, with other tentacles and sessile glands on the upper surface.

Aldrovanda, and of the several species of Utricularia, by my son Francis.

The transverse rows of hairs are so numerous that they seem superfluous merely for the sake of preventing the escape of prey, and as they are thin and delicate, they probably serve as additional absorbents, in the same manner as the flexible bristles on the infolded margins of the leaves of Aldrovanda.

Darwin, Francis, on the effect of an induced galvanic current on Drosera, 37 , on the digestion of grains of chlorophyll, 126 , on Utricularia, 442 Delpino, on Aldrovanda, 321 , on Utricularia, 395 Dentine, its digestion by Drosera, 106 Digestion of various substances by Dionaea, 301 by Drosera, 85 by Drosophyllum, 339 by Pinguicula, 381 , origin of power of, 361 Digitaline, action on Drosera, 203 Dionaea muscipula, small size of roots, 286 , structure of leaves, 287 , sensitiveness of filaments, 289 , absorption by, 295 , secretion by, 295 , digestion by, 301 , effects on, of chloroform, 304 , manner of capturing insects, 305 , transmission of motor impulse, 313 , reexpansion of lobes, 318 Direction of inflected tentacles of Drosera, 243 Dohrn, Dr.

Drosera, 1 , on sensitiveness of backs of leaves of Drosera, 231 , on direction of inflected tentacles in Drosera, 244 , on Aldrovanda, 322 Nourishment, various means of, by plants, 452 Nuttall, Dr.

Drosera, 5 Spectroscope, its power compared with that of Drosera, 170 Starch, action of, on Drosera, 78, 126 Stein, on Aldrovanda, 321 Strontium, salts of, action on Drosera, 183 Strychnine, salts of, action on Drosera, 199 Sugar, solution of, action of, on Drosera, 78 , , inducing aggregation in Drosera, 51 Sulphuric ether, action on Drosera, 219 , on Dionaea, 304 Syntonin, its action on Drosera, 102 T.

Aldrovanda, 321 , on contractile tissues in plants, 364 , on movements of stamens of Compositae, 256 , on Utricularia, 395 Colchicine, action on Drosera, 204 Copper chloride, action on Drosera, 185 Crystallin, its digestion by Drosera, 120 Curare, action on Drosera, 204 Curtis, Dr.

The circumferential part of the leaf of Aldrovanda thus differs greatly from that of Dionaea.