Quesnelia
Quesnelia | ||||||||||||
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Upright inflorescence of Quesnelia quesneliana |
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Systematics | ||||||||||||
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Scientific name | ||||||||||||
Quesnelia | ||||||||||||
Gaudich. |
The Quesnelia are a genus of plants from the subfamily Bromelioideae in the bromeliad family (Bromeliaceae). The approximately 22 species occur only in eastern Brazil .
Description and ecology
![](https://upload.wikimedia.org/wikipedia/commons/thumb/7/72/Quesnelia_seideliana_%28TS%29_2-05064.jpg/220px-Quesnelia_seideliana_%28TS%29_2-05064.jpg)
![](https://upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Quesnelia_liboniana_%28TS%29_2-05428.jpg/220px-Quesnelia_liboniana_%28TS%29_2-05428.jpg)
Appearance and leaves
The Quesnelia species are perennial herbaceous plants . Specimens of the same species grow as epiphytes or terrestrially. These are funnel or cistern bromeliads. They are small to large species with a funnel diameter of 0.2 to 1 meter. The tough leaves end in a spike tip. The leaf margins are always reinforced at the edge (as with all representatives of the Bromelioideae). Suction scales can mainly be seen on the underside of the leaf, but are also found on the upper side of the leaf in the lower area below the water surface. Large amounts of water often collect in the leaf funnels. In many funnels there are small biotopes with several species of animals, algae and aquatic plants.
Inflorescences, flowers and fruits
In up to 1 meter long, upright to overhanging, mostly handsome, simple, spiked inflorescences (inflorescences) that can only last for a short time , the many flowers are arranged in a cylindrical, densely or loosely manner. As a specialty, Quesnelia lateralis forms additional, apparently lateral inflorescences (hence the specific epithet ), but they are Kindel, which develop hardly recognizable leaves and are immediately ripe. Scaly sit at the inflorescences, bright colored bracts (bracts); they are pink to bluish-red.
The mostly sessile, hermaphrodite flowers are radial symmetry and threefold. The flowers are compressed at the sides. The three sepals are fused at most briefly at their base. The three red, purple, blue to almost black petals are exposed above the ovary. Birds are the pollinators of the blue-flowering species . The petals have two scales (ligula) at their base. There are two circles with three stamens each. The inner stamens are fused with the petals over a large part of their length. Three carpels are at a completely constant ovary grown.
Low-juice berries are produced.
Systematics and distribution
Charles Gaudichaud-Beaupré established the genus Quesnelia in 1842 in Voyage Autour du Monde ..., Botanique , plate 54. The genus name Quesnelia honors either the French consul in French Guiana , M. Quesnel, who brought the first plant specimens to France, or François Alexandre Quesné (1742-1820). Type species is Quesnelia rufa Gaudich. Synonyms for Quesnelia Gaudich. are: Guesmelia Walp. , Lievena rule .
The distribution area of the genus Quesnelia is limited to eastern Brazil .
There are 18 (Luther 2008) to 23 (as of the end of 2014) Quesnelia types: |
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Upright inflorescence of Quesnelia arvensis with reddish bracts and bluish flowers
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Overhanging inflorescence of Quesnelia humilis
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Only in a few species of the Bromeliaceae family are the inflorescences formed laterally and terminally, as in Quesnelia lateralis
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Upright inflorescence of Quesnelia testudo with red bracts and bluish flowers
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use
Since the inflorescences do not last as long as, for example, Aechmea , these species are rarely found in private collections. But in almost all botanical gardens you can find at least one species of these relatively undemanding but decorative plants.
swell
literature
- Werner Rauh : Bromeliads - Tillandsias and other bromeliads worthy of culture. Eugen Ulmer, Stuttgart 1990, ISBN 3-8001-6371-3
- Lyman B. Smith, Robert Jack Downs: Bromelioideae (Bromeliaceae) In: Flora Neotropica , Monograph 14, Part 3, 1979. (sections description and distribution)
- Valquíria Rezende Almeida, Andrea Ferreira da Costa, André Mantovani, Vânia Gonçalves-Esteves, Rosani do Carmo de Oliveira Arruda, Rafaela Campostrini Forzza: Morphological Phylogenetics of Quesnelia (Bromeliaceae, Bromelioideae) , In: Systematic Botany , Volume 34, Issue 4, 2009 , Pp. 660-672. doi: 10.1600 / 036364409790139619
Individual evidence
- ↑ Jason R. Grant An Annotated Catalog of the Generic Names of the Bromeliaceae , In: The Marie Selby Botanical Gardens, 1998. (Origin of the generic names in the family of the Bromeliaceae in English)
- ↑ a b c d e f g h i j k l m n o p q r s t u v w x y z In “Species Index” click on Quesnelia at Eric J. Gouda, Derek Butcher, Kees Gouda: Encyclopaedia of Bromeliads , Version 3.1 (2012). last accessed on December 24, 2014
- ^ Harry E. Luther: An Alphabetical List of Bromeliad Binomials , 2008 in The Marie Selby Botanical Gardens , Sarasota, Florida, USA. Published by The Bromeliad Society International .
Web links
- Quesnelia on the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland.
- The genre with some pictures.
- Information mainly on culture from Bromeliad culture and information from the South East Michigan Bromeliad Society .