Pinguicula - flower and fruit

Pinguicula moranensis     

Pinguicula vulgaris

     Pinguicula flowers are, like the other genera in the bladderwort family (Lentibulariaceae), 5-numbered and zygomorphic, i.e. they have only one plane of symmetry, the lip being slightly longer or differently shaped than the other petals and provided at the back with a nectar-producing spur. The color of the crown is white, red, blue or purple depending on the species. There are two stamens and the anther is divided into two lobes, of which the lower one is the largest. Visiting insects that stick their proboscis into the spur push their forehead against the lower lobe of the trap and deposit the pollen they have brought with them, after which the lobe rolls up around the pollen. The flower thus only needs a single insect visit if the insect brings pollen. The length of the spur varies considerably. In the European species, it is from approx. 3 mm in Pinguicula lusitanica to a maximum of 30 mm in P. corsica. – The fruit is a capsule with two valves and many small seeds.

H. S. Heide-Jørgensen, Nov. 2020. Translated Jan. 2024.

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