I thought this belonged to the carnivorous sundews (Drosera roraimae), but none of these flowers sprung up from any visible host! I did find it among sundews, but the flower stem had always sprung up from the wet soil. I also found that the flowers of the sundews of Roraima opened up hanging face down – in contradiction to these.
Thanks to Andre I now know it’s a Bladderwort – a really small one compared to the Utricularia humboldtii.
Last updated on 3 April 2023
Uticularia sp, Utriculariaceae
sorry, its Utricularia, instead of Uticularia
A Bladderwort – that makes sense… Thanks Andre!
This Bladderwort looks like Utricularia caycifida but without the leaves and with a single photo of the flower, identification remains uncertain…
Here is some information about this species found on the net:
Distribution: Species from northern South America, present in the zone from French Guiana through Suriname and Guyana up to Venezuela, it would have been reported in eastern Colombia.
Ecology: Grows in wet habitats of bushy savannah, on the banks of streams, at altitudes of about 50-1250 m.
Diagnosis: Terrestrial carnivorous herbaceous plant, 10-20 cm high in bloom. The leaves are crushed, petiolate, spatulate, cuneiform at the base, whole, rounded at the apex. The trunk is straight, simple, rarely branched; the bracts are small, linear, spaced; the flowers appear 2–7 (–20) in the upper part, with short stems; the calyx leaves are round to almost cordate; the cap measures up to 8 mm long, pale blue with a purple and yellow pattern, the upper lip is oval, shorter than the palate of the lower lip, the lower lip is broadly oval, with marginal edges, the palate is distinctly arched, the spur is curved, as long or longer than the lower lip. The fruit is a capsule
Many thanks for your input Christophe.