Victoria cruziana

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Victoria cruziana
Santa Cruz Giant Water Lily (Victoria cruziana)

Santa Cruz Giant Water Lily ( Victoria cruziana )

Systematics
Class : Bedecktsamer (Magnoliopsida)
Order : Water lilies (Nymphaeales)
Family : Water lily family (Nymphaeaceae)
Subfamily : Nymphaeoideae
Genre : Giant Water Lilies ( Victoria )
Type : Victoria cruziana
Scientific name
Victoria cruziana
ADOrb.

Victoria cruziana , also known as the Santa Cruz giant water lily , is a species of the water lily family(Nymphaeaceae). In South America it is nativeto Argentina (Chaco, Corrientes, Entre Rios, Formosa, Santa Fe) and Paraguay . It is one of the largest freshwater aquatic plants inthe worldin the quiet bays of large, slow-flowing rivers.

It is a popular tropical pond plant in botanical gardens . It also grows in cooler waters than its close relative, the better-known Amazon giant water lily ( Victoria amazonica ).

blossom

Description and ecology

Victoria cruziana is an herbaceous plant . Its extremely large leaves reach a diameter of 120 cm to 170 cm. Its 25 cm large flower blooms for 2 days after its appearance, initially pure white, which changes to a rich pink on the second and last day of flowering. Victoria cruziana is a thermogenic or heat producing plant. The stigmas of the flower are in a calyx, which is protected by spines. The calyx begins to warm up as a bud, and when the flower opens it releases a strong, sweet scent to attract pollinating beetles and also continues to produce heat during the pollination phase.

The number of chromosomes is 2n = 24.

Taxonomy and Botanical History

The first description of Victoria cruziana was made in 1840 by Alcide d'Orbigny in Annales des Sciences Naturelles; Botanique , Ser. 2, 13, p. 57. Synonyms for Victoria cruziana A.D. Orb. are: Victoria argentina Burmeist. nom. nud., Victoria cruziana var. malmei F. Henkel et al. , Victoria cruziana f. matogrossensis Malme , Victoria cruziana f. trickeri F. Henkel ex Malme , Victoria cruziana var. trickeri F. Henkel et al. , Victoria regia var. Cruziana (ADOrb.) C.Lawson , Victoria trickeri (F.Henkel ex Malme) hort. ex Mutzek .

Victoria cruziana was discovered in Bolivia on one of several expeditions through the country of Alcide d'Orbigny , with financial support from Andrés de Santa Cruz . The first collected samples were shipped to France , where they were named in his honor by Alcide d'Orbigny's brother Charles Henry Dessalines d'Orbigny Santa Cruz Victoria cruziana .

gallery

  • Floating leaves of the giant Santa Cruz water lily

  • Underside of the leaf with supporting ribs

  • Victoria cruziana in the Nancy Botanical Gardens

swell

Individual evidence

  1. ^ A b Victoria cruziana in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved January 18, 2014.
  2. ↑ Data sheet of the Botanical Garden in Halle. Last accessed on January 18, 2014
  3. ^ A b I. Lamprecht, E. Schmolz, S. Hilsberg, S. Schlegel: A tropical water lily with strong thermogenic behavior - thermometric and thermographic investigations on Victoria cruziana . In: Thermochimica Act . Volume 382, ​​Issues 1–2, 2002, pp. 199–210 , doi : 10.1016 / S0040-6031 (01) 00734-1 (English).
  4. ↑ Helen Nash, Steve Stroupe: Complete guide to water garden . Sterling Publishing, New York 2003, ISBN 1-4027-0954-4 (English, limited preview in Google Book Search).
  5. ^ I. Lamprecht, E. Schmolz, L. Blanco, CM Romero: Flower ovens: thermal investigations on heat producting plants . In: Thermochimica Act . Volume 391, Issues 1–2, 2002, pp. 107-118 , doi : 10.1016 / S0040-6031 (02) 00168-5 (English).
  6. ↑ Victoria cruziana at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
  7. ↑ Victoria cruziana at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed January 18, 2014.

Web links

Commons : Victoria cruziana  - Collection of images, videos and audio files