Lentibulariaceae from the Viruá National Park in the northern Amazon, Roraima, Brazil Author Costa, Suzana M. Author Bittrich, Volker R. Mário de Nucci, 500, Cidade Universitária, 13083 - 290 Campinas, SP, Brazil. Author Do Amaral, Maria Do Carmo E. text Phytotaxa 2016 2016-04-26 258 1 1 25 http://dx.doi.org/10.11646/phytotaxa.258.1.1 journal article 10.11646/phytotaxa.258.1.1 1179-3163 13673170 9. Utricularia guyanensis Candolle (1844: 11–12) ( Fig. 4 : B–C) Marsh herbs, up to 20 cm tall.Stolons and vegetative parts glabrous. Leaves (not seen); traps lateral, without appendages. Inflorescence erect, up to 10-flowered, flowers ca. 1 cm distant from each other. Peduncle greenish or reddish; lateral spongy floats absent. Sterile bracts up to 1 mm long, basifixed, ovate, margin entire, equally distributed along the peduncle. Bract up to 1 × ca. 1.2 mm , basifixed, broadly ovate, margin entire, sometimes with a prominent nerve. Bracteoles < 1 mm long, lanceolate, apex acute, margin entire. Pedicels up to 1 mm , shorter than calyx lobes. Calyx lobes equal, margin entire, green to yellow, apex reddish, without prominent nerves; upper lobe 2 × 2 mm , lanceolate, apex acute to rounded; lower lobe 2 × 1.5 mm , lanceolate, apex acute to rounded. Corolla yellow; upper lip 2.5 × 2 mm , ovate; lower lip 4 × 4 mm , orbicular, apex obscurely bilobed; spur up to 1 × 1 mm , cuneiform (wedge-shaped), always shorter than the lower lip of corolla and not forming an angle of 90º with the latter in a lateral view. Style and filaments elongate; filaments acutely bent in the middle, more or less parallel with inner surface of spur. Capsule ellipsoid, dehiscing by a ventral pore. Seeds numerous, ovoid, with reticulate surface, testa cells isodiametric, elliptic to circular. Distribution :—We present the first record of Utricularia guyanensis for Roraima . This species occurs in northern South America and Central America ( Taylor 1989 ); in Brazil it occurs in the northern, northeastern and central-western regions ( Miranda et al. 2016 ). It grows in sandy, humid and saturated soils ( Taylor 1989 ), and in the Viruá National Park it was collected in grassy white-sand savannas with saturated soils. Taxonomic notes :—According to Taylor (1989) , the leaves of this species are filiform with acute apex, 0.3–0.4 mm wide; the peduncle is generally blackish after drying. Utricularia guyanensis differs from other species in the genus by the cuneiform (wedge-shaped) spur, elongated style and stamens, and the position of the style and stamen along the spur ( Fig. 4 : B–C). Specimens :— BRAZIL . Roraima , Caracaraí , Viruá National Park : “Estrada Perdida”, 20 January 2011 , M . C . E . Amaral 2011-27, C . F . Silva ( INPA !, UEC !) ; “Estrada Perdida”, 16 September 2010 , S . M . Costa 756, T .D. M . Barbosa , F . N . Cabral ( INPA !, UEC !) ; “ Estrada Perdida ”, 25 January 2011 , S . M . Costa 897, K . G . Cangani ( INPA !, UEC !) ; PPBio grid L4 / N4, 20 March 2011, S . M . Costa 919, T .D. M . Barbosa ( INPA !, UEC !) .