Utricularia


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Related to Utricularia: genus Utricularia, Nepenthes

Utricularia

 

(bladderwort), a genus of insectivorous plants of the family Lentibulariaceae. The plants live in water and swamps; some are epiphytes. Bladderworts have no roots owing to their insectivorous mode of feeding and, for many of them, their aquatic life. The leaves are divided into thin threadlike lobes that end in small bladders for trapping small aquatic animals. On the free end of each bladder there is an opening with a valve that only opens inward; bristles are situated along the edge of the opening. Even the slightest pressure on the valve exerted by an animal will cause the valve to open. The insect enters the bladder and is digested there through the action of enzymes secreted by the bladder walls. Aquatic bladderworts flower, and their racemes are above water. Bladderworts develop winter buds, which serve for overwintering. There are approximately 250 species. Of the four species growing in the USSR, the best known are the greater bladderwort (U. vulgaris) and the intermediate bladderwort (U. intermedia). Some species have medicinal value.

References in periodicals archive ?
Utricularia foliosa: sub-representado en el espectro polinico de la cienaga Mata de Lata (T: 9 y R: 0.
Material examinado LPC Sitio Tipo de muestra Fecha 9938 Cienaga de Paticos Epifiton en Eichhornia 01/03/2007 azurea (Swartz) Kunth 9943 Cienaga de Ayapel Epifiton en Paspalum 01/09/2006 repens Bergius 9944 Cienaga de Paticos Epifiton en Utricularia 01/08/2006 repens Bergius 9953 Cienaga de Playa Epifiton en Eichhornia 01/12/2006 Blanca crassipes (Martius) Solms-Laubach 9969 Cienaga de Ayapel Epifiton en Eichhornia 01/01/2008 crassipes (Martius) Solms-Laubach 9972 Quebrada Quebradona Epifiton en Eichhornia 01/09/2006 heterosperma Alexander 9975 Cano Barro Epifiton en Eichhornia 01/09/2006 heterosperma Alexander 9976 Cienaga de La Miel Epifiton en Eichhornia 01/08/2006 heterosperma Alexander
Effects of zooplankton and conductivity on tropical Utricularia foliosa investment in carnivory.
Habitat partitioning among size classes of larval southern leopard frogs, Rana utricularia.
For example, the widespread aquatic genus Utricularia sets traps underwater, but flowers above the water surface.
Interference and exploitation competition among tadpoles of Rana utricularia.
Dentro de los analisis de seleccion en ecosistemas acuaticos, se ha documentado la macrofita carnivora Utricularia vulgaris, que selecciona mas frecuentemente a los copepodos ciclopoideos, en lugar de cladoceros del genero Polyphemus, (Harms, 1999; Harms & Johansson 2000).
Utricularia macrorhiza Leconte (2) BCS, COAH, DF, MEX, MICH, PUE.