Catopsis berteroniana

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Catopsis berteroniana
Catopsis berteroniana in the Sierra de Lema

Catopsis berteroniana in the Sierra de Lema

Systematics
Commelinids
Order : Sweet grass (Poales)
Family : Bromeliads (Bromeliaceae)
Subfamily : Tillandsioideae
Genre : Catopsis
Type : Catopsis berteroniana
Scientific name
Catopsis berteroniana
( Schult. & Schult.f. ) Mez

Catopsis berteroniana is an epiphytic plant species from the bromeliad family(Bromeliaceae).

ecology

As with all funnel bromeliads, water is collected in the leaf funnels. Dust, parts of plants and animals also fall into it. Organic material is broken down with the help of bacteria and fungi. The then dissolved nutrients are absorbed through the leaves.

Catopsis berteroniana is the only Catopsis species so far that is considered to be precarnivorous. This means that it is at the beginning of a development into a carnivorous plant . The prey (insects) drowns in the water-filled funnels, but there is no digestion with enzymes, instead the plant needs bacteria to help it to extract the nutrients from preyed animals (in contrast to the carnivorous plants in the strict sense). Very low pH levels were found in the funnels, which led to the conclusion that this leads to better assimilation of the nutrients.

distribution

The distribution area extends from Florida in the southern USA through Mexico , Central America and the Caribbean islands to Ecuador and eastern Brazil (Bahia, Parana and Santa Catarina) at altitudes between 100 and 1300 m above sea level.

Systematics

The description of the plant species under the name Tillandsia berteroniana by the two Austrian botanists Joseph August Schultes and Julius Hermann Schultes (father and son) appeared in 1830 in the 16th edition of the work Caroli a Linné systema vegetabilium, jointly edited by Joseph August Schultes and Johann Jacob Römer . The German botanist Carl Christian Mez referred to this basionyma in 1896 , but assigned the species to a different genus under the name Catopsis berteroniana and thus gave the currently valid first description .

Synonyms for the species are:

  • Renealmia pendula Gaertner , 1805, non Catopsis pendula Baker , 1889
  • Tillandsia pendula Thunberg ex Gaertner , 1805
  • Tillandsia berteroniana Schultes f. , 1830
  • Pogospermum berteronianum (Schultes f.) Brongniart , 1864
  • Catopsis mosenii Mez , 1896

swell

literature

Single references

  1. ^ Johann Jakob Römer, Joseph August Schultes: Systema Vegetabilium secundum classes ordines genera species, part 2 . Cotta, Stuttgart 1830, 7 (2): 21.
  2. ↑ Casimir de Candolle: Monographiae Phanerogamarum , Vol. 9: Bromeliaceae . Masson, Paris 1896, p. 621 (in Latin).

Web links

Commons : Catopsis berteroniana  - album with pictures, videos and audio files