Utricularia triloba Benjamin (1847: 248)

Costa, Suzana M., Bittrich, Volker & Do Amaral, Maria Do Carmo E., 2016, Lentibulariaceae from the Viruá National Park in the northern Amazon, Roraima, Brazil, Phytotaxa 258 (1), pp. 1-25 : 22

publication ID

https://doi.org/ 10.11646/phytotaxa.258.1.1

DOI

https://doi.org/10.5281/zenodo.13673236

persistent identifier

https://treatment.plazi.org/id/03B487D2-FFEE-5862-FF0A-FF35FE35FCCF

treatment provided by

Felipe

scientific name

Utricularia triloba Benjamin (1847: 248)
status

 

21. Utricularia triloba Benjamin (1847: 248) View in CoL ( Fig. 6 View FIGURE 6 : G)

Marsh herbs, up to 15 cm tall. Stolons and vegetative parts glabrous. Leaves ca. 3 mm wide, linear. Traps lateral, one pair of dorsal appendages branched. Inflorescence erect, up to 10-flowered, flowers up to 1.5 cm distant from each other. Peduncle greenish; lateral spongy floats absent. Sterile bracts up to 1 mm long, peltate, elliptic, apex acute, margin entire or ciliate, equally distributed. Pedicels ca. 5 mm, longer than the calyx lobes. Bract 1 × 1 mm, peltate, elliptic, apex and base acute to rounded, margin entire. Bracteoles absent. Calyx lobes equal, 1–1.5 × 1–1.5 mm, lanceolate, apex acute, margin entire, with 5 prominent nerves extending to the apex. Corolla yellow; upper lip ovate to lanceolate; lower lip deltoid, trilobed to obscurely trilobed; spur ca. 6 × 1.5 mm, conical, apex acute or 2–3-fid, slightly longer than the lower lip of corolla and not forming an angle of 90º with the latter in lateral view. Style and filaments short. Capsule globose, dehiscing by a ventral pore. Seeds numerous, ellipsoid, testa cells elongated.

Distribution:— Utricularia triloba occurs in Central and South America ( Taylor 1989) and throughout Brazil ( Miranda et al. 2016). It grows in humid sandy savannas, margins of gallery forest and wet open grasslands ( Taylor 1989). In VNP this species occurs in an area of grassy white-sand savanna.

Taxonomic notes:— Utricularia triloba differs from other similar species by the calyx with five prominent nerves that extend to the acute apex of each lobe.

Specimens:— BRAZIL. Roraima, Caracaraí, Viruá National Park: PPBio grid, 12 September 2010, S.M. Costa 709, T.D.M. Barbosa (INPA!).

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