Catasetum Rich. ex Kunth
  • Syn. Pl. 1: 330–331. 1822. (14 Dec 1822)


Cite taxon page as 'WFO (2020): Catasetum Rich. ex Kunth. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-4000006981. Accessed on: 17 Feb 2020'

General Information

CATASETUM Rich. ex Kunth

Epífitas o terrestres; pseudobulbos carnosos, homoblásticos, más o menos fusiformes, cuando jóvenes con varias hojas en el ápice, articuladas, grandes y longitudinalmente nervadas, en la porción basal con varias vainas, cuando las láminas caen persisten los ápices más o menos espinosos de las vainas, finalmente cuando las vainas también se desintegran, los pseudobulbos quedan desnudos y anillados. Inflorescencias racimos paucifloros hasta multifloros, erectos hasta péndulos, emergiendo lateralmente (cerca de la base) de los pseudobulbos, las flores generalmente grandes y vistosas, unisexuales o hermafroditas, algunas veces resupinadas; sépalos generalmente similares a los pétalos, libres, angostos o anchos, membranáceos hasta carnosos, los pétalos y el sépalo dorsal por lo general algo coherentes y formando una especie de casco inclinado por encima de la columna; labelo de textura y forma variables.

Género neotropical con ca 100 especies distribuidas desde México hasta Brasil, Perú, Bolivia y Paraguay, también en las Antillas; 2 especies en Nicaragua.

  • Provided by: [C].Flora de Nicaragua
    • Source: [
    • 1
    • ]. 

    Epiphytic herbs. Pseudobulbs fleshy, fusiform, or subconic; roots often with many secondary, slender, erect, spinous rootlets which form dense mats about the base of the plants. Leaves plicate, strongly nerved, the blades deciduous; the per- sistent imbricating bases closely enveloping the pseudobulbs, armed at the apex with short, sharp spines. Inflorescences arching or pendulous racemes from the base of the pseudobulbs. Flowers few or many, often large and showy, unisexual or perfect. Sepals aud petals in all forms free, subequal, fleshy or membranaceous, part or all of them spreading or reflexed and connivent at the base. The genus is divided by Mansfeld into two distinct sections. In CLOWESIA: flowers perfect (containing both a functional stigmatic surface and a fertile anther); column without elongate antenna-like processes; lip membranaceous or fleshy. In ORTHOCATASETUM: flowers unisexual, the staminate and pistillate forms strikingly dissimilar and usually produced on separate scapes; staminate flowers (those most frequently seen) usually many, often conspicuously colored, on an arching or pendent raceme; lip membranaceous, fleshy, spreading, concave or galeate, the margins entire, lobulate, emarginate, crenate, fimbriate or dentate; column erect, footless, the under-side usually with two elongate antenna-like processes which are extremely sensitive when touched, ejecting the pollinia with considerable force. Anther terminal, operculate, incumbent, convex, 1-celled or imperfectly 2-celled; pollinia 4, waxy, in 2 pairs, or 2-lobed or 2-sulcate. Pistillate flowers less frequently produced, usually few, on short, erect or arching racemes. Lip usually very fleshy and galeate, with or without a thickened margin. Column short and stout, without antennae; functional stigmatic surface present.

  • Provided by: [D].Flora de Panama
    • Source: [
    • 3
    • 2
    • ]. 

    Included Species

     Information From

    MBG Floras Images
    http://www.tropicos.org/ImageSearch.aspx
    Flora images. Missouri Botanical Garden. Accessed on Jun. 2018.
    • A Missouri Botanical Garden
    • B Missouri Botanical Garden
    Flora de Nicaragua
    http://www.tropicos.org/projectwebportal.aspx?projectid=7&pagename=Home&langid=66
    WD Stevens, CU Ulloa, A Pool and OM Montiel. Missouri Botanical Garden Press, 2001
    • C Missouri Botanical Garden
    Flora de Panama
    http://www.tropicos.org/Project/PAC
    Robert E. Woodson, Jr. and Robert W. Schery Annals of the Missouri Botanical Garden Vol. 67, No. 4 (1980), pp. ii-xxxiii
    • D Missouri Botanical Garden
    Orchidaceae
    • E CC0 1.0 Universal (CC0 1.0).
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • F CC0 1.0 Universal (CC0 1.0).