Cosmopolitan in distribution

Usage examples of utricularia.

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

Pinguicula and Utricularia, belonging to the same family, have been adapted for these two different functions.

I believe that this is the case, because the bladders of some epiphytic and marsh species of Utricularia which live embedded either in entangled vegetation or in mud, have no bristles round the entrance, and these under such conditions would be of no service as a guide.

We may therefore conclude that Utricularia cannot digest the animals which it habitually captures.

It will hereafter be seen that in three or four other species of Utricularia the quadrifid processes in contact with decaying animals likewise contained aggregated masses of protoplasm.

This remarkable genus is technically distinguished from Utricularia, as I hear from Prof.

Did the three species just named, like their close allies, the several species of Utricularia, aboriginally possess bladders on their rhizomes, which they afterwards lost, acquiring in their place utriculiferous leaves?

Moreover, several of the quadrifids, which were before empty, now contained moderately sized or very small, more or less aggregated, globules of yellowish matter, as likewise occurs under the same circumstances with Utricularia.

On the other hand, the rhizomes bear bladders resembling in essential character those on the rhizomes of Utricularia.

Utricularia nelumbifolia, 442 Gelatin, impure, action on Drosera, 80 , pure, its digestion by Drosera, 110 Genlisea africana, 451 filiformis, 451 Genlisea ornata, structure of, 446 , manner of capturing prey, 450 Glandular hairs, absorption by, 344 , summary on, 353 Globulin, its digestion by Drosera, 120 Gluten, its digestion by Drosera, 117 Glycerine, inducing aggregation in Drosera, 52 , action on Drosera, 212 Gold chloride, action on Drosera, 184 GorupBesanez on the presence of a solvent in seeds of the vetch, 362 Grass, decoction of, action on Drosera, 84 Gray, Asa, on the Droseraceae, 2 Groenland, on Drosera, 1, 5 Gum, action of, on Drosera, 77 Guncotton, not digested by Drosera, 125 H.

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.

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.