BROCCHINIA

 

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Brocchinia réducta

5 SPECIES, 2 ARE CONSIDERED AS PROTOCARNIVORES

Brocchinia hectioides et Brocchinia réducta

 

USUAL NAME

Unknown

FAMILY

Bromeliaceae

 
History and etymology

In 1830, JH Schultes assign a name to these plants, in honor of Italian naturalist G. Brocchi. Both species are recognised as carnivores through experiments conducted in 1974, 1984 for Brocchinia reducta and 1986 for Brocchinia hectioides.

Distribution
 

They are located in Venezuela in an area of the Gran Sabana, which includes a set of sandstone plateaux called "Tepuy.

Biotope
 

The Brocchinia often grow in colonies in savannas and sandy peat soils with acidic pH, and on rocks. The climate is very wet, is favored by many storms forming over the Amazon rainforest and dumping heavy rains on the Tepuys. Temperatures are undergoing major changes through the interplay of the low stability of the weather. Sometimes a plant of genus Cottendorifia, Drosera, Stegolepis, etc.. accompany them.

Description
 

They are terrestrial erected plants, 30-50 cm high. Leaves are narrow gutter-shaped, green and organised in rosette. Traps are formed by the leaves and collect water such as reservoirs. Insects are attracted by the scent given off by plants and slide to the bottom where they drow. Bacteria digest the non-chitinous parts of the prey. Absorption occurs through trichrome which are small glandular hairs.

The prey are often insects: Diptera, Hymenoptera ...

The white flowers are arranged in inflorescence of a small size, 5 mm.

Brocchinia hectioides

Brocchinia tatei

Brocchinia with Utricularia humboltii

genlisea.jpg

drosera_mod2.jpg

utricula_mod2.jpg

 

 


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