Utricularia
-
Authority
Maguire, Bassett. 1967. The botany of the Guayana Highland--Part VII. Mem. New York Bot. Gard. 17: 1-439.
-
Family
Lentibulariaceae
-
Scientific Name
-
Description
Deprecated: mb_convert_encoding(): Handling HTML entities via mbstring is deprecated; use htmlspecialchars, htmlentities, or mb_encode_numericentity/mb_decode_numericentity instead in /home/emu/nybgweb/www-dev/htdocs/science-dev/wp-content/themes/nybgscience/lib/VHMonographsDetails.php on line 179
Genus Description - The genus Utricularia is widely distributed in the tropics with a few species in the temperate regions of the northern hemisphere. The areas in which the greatest concentrations of species occur appear to be those where savanna types of vegetation are frequent or predominate and associated with high or fairly high rainfalls—northern Australia, south-east Asia, south-central Africa and northeastern South America. In the Guayana area there are more species than in any other region of comparable size or indeed in any other continent, and here also the genus shows a greater morphological diversity than in any other part of the world. Of the 41 species recognized in this account 16 appear to be confined to the region; 5 of these occur at high altitudes only, the remaining 11 either have wide altitudinal ranges or are restricted to low altitudes. A further 5 species extend elsewhere only to Brazil and, in a different category, 3 species with distributions centered in southern Brazil extend into the Guayana region, in some cases only very marginally. The remaining species nearly all have wider American distributions, and 5 of them extend to the Old World, though one of these (V. benjaminiana) though wide-spread in tropical Africa and Madagascar is apparently restricted in America to low altitude Suriname, French and British Guiana.