Stanhopea x lewisae

(Ames & Correll) Horich ex Jenny 1988

Native to Guatemala.

Edited 11 May 2007
© Nina Rach

Stan. x lewisae 'Apperson' AM/AOS; photo by Doug Pulley

Stanhopea x lewisae (Ames & Correll) Horich ex Jenny 1988
Photo at left by Doug Pulley.

Ames & Correll (1985) describe this species as a "Plant composed of a small monophyllous pseudobulb and a pendent several-flowered inflorescence ... [with] a 3- to 5-flowered raceme, drooping from the base of the pseudobulb and covered with dry hard imbricating bracts that vary from 1.5 to 4 cm. in length. ... Flowers large, showy, creamy white with purple or reddish flecks, with slightly triangular papillose pedicellate ovaries that are 6.5-9 cm. long. Dorsal sepal oblong-elliptic ... 5-5.7 cm. long, 2.5-3 cm. wide. Lateral sepals oblique, ovate-elliptic ... deeply concave, united at the base for a short distance and conforming with the basal half of the lip, 5.5-6 cm. long, 3.3-3.7 cm. wide below the middle. Petals slightly oblique, ovate-lanceolate, acute to shortly acuminate, 4-4.7 cm. long, 1.6-1.9 cm. wide near the base. Lip fleshy and rigid with a glossy wax-like appearance, 4-4.5 cm. long, complex in structure; basal half [hypochile] deep yellow with striations of purple flecks, subglobose-saccate, sulcate beneath along center, verrucose-corrugated on the interior surface, the upper front portion very fleshy-thickened and sulcate, 2.3-2.8 cm. wide, 1.5-2 cm. deep ... upper half of the lip [epichile] flat, whitish, densely flecked with red, broadly rhombic-ovate, rounded obtuse at the apex ... about 2 cm. long and 2-2.5 cm. wide. Column flat, somewhat arcuate, lightly winged above, about 3.5 cm. long and 1.2 cm. wide above the middle." Distinguished from other species by the extremely short lateral horns on the lip, about 6mm, and the rigid apical portion of the lip.

This orchid grows between 0-100 m elevation in very humid, lowland forests. It was originally identified as a species by Ames & Correll (1953), naming it for Margaret Ward Lewis, who made the original collection in Guatemala (Dept. Izabal, Los Andes District, near Entre Rios) on June 12, 1935.

It was later recognized as a natural hybrid of ecornuta with inodora.

Is this really a natural hybrid?
Doug Pulley, a stanhopea grower in central California believes this is just a pale variety of Stanhopea insignis.

See the web page on Stanhopea Natural Hybrids.

AOS award:

Stanhopea lewisae 'Apperson' AM/AOS 84pts, 7/07/84, Baton Rouge, LA
Exhibitor: John Apperson, Cantonment, FL. [photo of this cultivar at top of webpage]

Printed References:

Oakes Ames & Donovan Stewart Correll (1942) original publication in: Botanical Museum Leaflets Harvard University 10(4): 86-87, pl. 10.

Oakes Ames & Donovan Stewart Correll (September 25, 1953) Orchids of Guatemala in: Fieldiana, Botany 26(2): 399-727. Chicago Natural History Museum. = Part II of the 1985 Dover reprint. [Stanhopea Lewisae on pp. 531-532, plus Fig. 151 on p. 533- a line drawing of plant and flowers by G.W. Dillon.]

Oakes Ames and Donovan S. Correll (1985 reprint) Orchids of Guatemala and Belize. New York: Dover Press, 779 pages. [pp. 528-536, 755: Stanhopea devoniensis, S. Hernandezii, S. tigrina, S. ecornuta, S. Lewisae, S. oculata, S. quadricornis, S. saccata, S. radiosa, S. Marshii]

Margaret A. Dix and Michael W. Dix (2000) Orchids of Guatemala: A Revised Annotated Checklist. MOBOT. [p.52]

Clarence K. Horich (1964) "Stanhopea lewisae," in: Die Orchidee 15: 168-171.

Rudolf Jenny (Dec. 2003) Stanhopea monograph, Part 1 in: Caesiana.

Rudolf Jenny (1995) "The Gongorinae, 7. Stanhopea, Part 14th," in: Caesiana [Italian Journal of Orchidology] Quaderno 4: 9-28. [Stanhopea bolivarensis, Stanhopea x herrenhusana, Stanhopea x horichiana, Stanhopea x lewisae, Stanhopea x thienii]

Rudolf Jenny (1988) "Naturhybriden mit Stanhopea ecornuta," in: Die Orchidee 39: 6-9.

Web References:

International Plant Names Index [IPNI],

Stanhopea names in Index Kewensis:

Belize Botanic Gardens - Orchid List:

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