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Orchid Species: Humboltia racemiflora

Kew currently accepted name is Stelis quadrifida

Humboltia racemiflora is an orchid species identified by Kuntze in 1891. Culture information and photos for this orchid are commonly detailed under the currently accepted name of Stelis quadrifida.
Genus
Humboltia (Humboltia.)
Grex
racemiflora
Parents
Species
Author
Kuntze
Year
1891
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ORIGIN: Found in the Jamaica, Mexico, Guatemala, El Salvador, Honduras, Nicaragua, Costa Rica, Panama, Colombia and Venezuela at altitudes up to 1800 meters in wet, exposed locations often in scrub forest.

DESCRIPTION: This small to just medium sized, hot to cool growing epiphytic or occasional lithophytic species has erect, terete, ramicauls carrying a single, apical, coriaceous, linear to oblong-elliptic or oblanceolate, retuse and obtuse apically, gradually narrowing below into the conduplicate, petiolate base leaf that blooms mostly in the summer on an apical, erect, simple, to 15 [38 cm] long, simultaneously opening, many flowered inflorescence subtended by a compressed sheath carrying sweetly scented flowers held all to one side of the inflorescence which extends well above the leaves.

FLOWER SIZE: 1/4 to 1/2 inch [7 to 9 mm] -- information provided by Jay Pfahl, author of the Internet Orchid Species Encyclopedia (IOSPE).
Other Names
Genus Name Genus Grex Name Year Author
Add+ Stelis Ste quadrifida 2003 (Lex.) Solano & Soto Arenas
Add+ Anathallis Anat racemiflora 2001 Pridgeon & M.W.Chase
Add+ Physosiphon Psn nicaraguensis 1853 Liebm.
Add+ Pleurothallis Pths ghiesbreghtiana 1845 A.Rich. & Galeotti
Add+ Pleurothallis Pths incompta 1854 Rchb.f.
Add+ Pleurothallis Pths longissima 1859 Lindl.
Add+ Pleurothallis Pths lyroglossa 1910 Schltr.
Add+ Pleurothallis Pths nicaraguensis 1861 (Liebm.) Rchb.f. in W.G.Walpers
Add+ Pleurothallis Pths niederleinii 1918 Schltr.
Add+ Pleurothallis Pths racemiflora 1825 (Sw.) Lindl. ex Hook.
Add+ Pleurothallis Pths tricostata 1912 Cogn. in I.Urban
Add+ Stelis Ste nicaraguensis 2003 (Liebm.) Solano & Soto Arenas
Add+ Stelis Ste racemiflora 1839 (Pridgeon & M.W.Chase) Pridgeon & M.W.Chase
Add+ Pleurothallis Pths quadrifida 1842 (Lex.) Lindl.
Add+ Dendrobium Den quadrifidum 1825 Lex. in P.de La Llave & J.M.de Lexarza
Add+ Humboltia Humboltia incompta 1891 (Rchb.f.) Kuntze
Add+ Humboltia Humboltia longissima 1891 (Lindl.) Kuntze
Add+ Humboltia Humboltia nicaraguensis 1891 (Rchb.f.) Kuntze
Add+ Humboltia Humboltia quadrifida 1891 (Lex.) Kuntze
Add+ Specklinia Spe quadrifida 2004 (Lex.) Luer
Most awarded/recent cultivars: Pths. ghiesbreghtiana 'Babette' (2 awards from 1980 to 1987) Pths. racemiflora 'Panther Creek' (2 awards in 1980) Pths. quadrifida 'Halcyon' (2 awards from 1970 to 1971) Ste. quadrifida 'Brennan' (2010) Ste. quadrifida 'Esplendor' (2005) Pths. racemiflora 'Judy' (2004) Pths. quadrifida 'Wappingers Falls' (2000) Pths. racemiflora 'Jardin Botanique de Montreal' (1998) Pths. racemiflora 'E & W' (1995) Pths. racemiflora 'Annette' (1992) Pths. ghiesbreghtiana 'Surprise' (1977) Pths. ghiesbreghtiana 'Bruce' (1975) Pths. quadrifida 'Amanda K' (1969)
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