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Coryanthes


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A friend just sent me an image of Coryantes picturata in flower in situ. It jogged my memory...

 

I have attached an excellent 2011 article on perhaps the most fascinating ant-associated orchid genus. I would draw everyone's attention to Figure 1, which should be of particular interest to members of this forum.

 

J

11_Lankesteriana 11(3) Gerlach.pdf

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Coryanthes William Jackson Hooker.

Published in Botanical Magazine 58, 1831.  All of the 41 Coryanthes species are found growing in very acid conditions on ant-gardens.

 

Coryanthes macrantha [Hooker] William Jackson Hooker published in Botanical Magazine 58, 1831.  Basionym Gongora macrantha Hooker published in Botanical Miscellany 2, 1831. Synonym Panstrepis paradoxa Rafinesque 1836.  Common names Bucket Orchid; in Trinidad called the Monkey Throat Orchid.  Always associated with ant gardens.

  Description: A large epiphyte with narrowly ovoid, sulcate, (having narrow, deep furrows) bifoliate (two leafed)  pseudobulbs with lanceolate (lance shaped), plicate (pleated) and ribbed leaves with a channeled petiole which blooms on basal, pendant, 30 cm  (12") long, bracteate, 1 to 2 flowered, racemose inflorescences arising on mature pseudobulbs with large, waxy, short lived, fragrant 13cm. (5") summer flowers, smelling strongly of mint and held well below the plant.

  Habitats: Wet lowland rainforests.  Range: Caribbean (Trinidad,) northern South America (Colombia, Venezuela, Guyana, Suriname, French Guiana, Brazil & Peru.

  Requires warmth.

Image here. http://en.wikipedia.org/wiki/File:Coryanthes_macrantha_Orchi_02.jpg

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Coryanthes speciosa (Hook.) William Jackson Hooker published in Botanical Magazine 58, 1831. Basionym Gongora speciosa Hooker published in Botanical Magazine 54, 1827.

  A true ant-garden epiphyte species (Orivel & Leroy 2011.)  Habitats: Epiphytic in low-lying, hot, humid regions, usually below 1000 m (3300 ft.)  Range: Mexico, Caribbean (Trinidad Tobago) Central America (Belize, Guatemala, Honduras, Costa Rica) South America (Colombia, Venezuela, Guyana, Surinam, French Guiana and Brazil.)

Image. http://en.wikipedia.org/wiki/Coryanthes_speciosa

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