1. Family: Orchidaceae Juss.
    1. Genus: Phragmipedium Rolfe
      1. Phragmipedium pearcei (Veitch ex J.Dix) Rauh & Senghas

        This species is accepted, and its native range is Ecuador to NE. Peru.

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    Distribution

    Phragmipedium pearcei is distributed along the eastern edge of the Andes of Ecuador 132 and northern Peru, into the lowland wet Amazonian forest, from 200 to 1200 m in elevation.

    General Description

    Rhizomes stoloniferous, to 5 cm long. Roots wiry, striate, to 3mm in diam. Leaves linear, 20 - 39 cm long, 0.6 - 1.0 cm wide, up to 1.5 cm wide at base, wiry, arcuate, strongly keeled, glabrous, dark green, lighter green below; margins revolute; apex acute to apiculate, minutely trilobed, oblique. Inflorescence an unbranched, 4 - 9 flowered, spicate raceme, 10 - 45 cm tall. Peduncle dark brown to maroon, pilose with uniseriate multicellular hairs. Floral bracts ovate, 1.5 - 3.0 cm long, 1.0 - 1.6 cm wide, green with maroon veins; margins hyaline; apex acute, minutely bi- or trilobed. Sterile lower bracts 2 - 3, linear to linear-ovate, 2.5 - 10.0 cm long, 0.8 -1.2 cm wide, strongly keeled, lowest 3 - 12 cm from plant base; margins thin, often purple; apex acute, minutely bilobed. Flowers green to yellowish-green and white, with brown to maroon markings, nerves green or maroon-brown; outer surfaces mostly glabrous; inner surfaces mostly glabrous, but with some short, glandular pubescence; margins white, slightly to strongly undulate. Dorsal sepal ovate-lanceolate to elliptic, 2.7 - 3.5 cm long, 0.6 - 1.1 cm wide, white with 13 - 15 nerves, glabrous, with an occasional glandular hair; margins white, undulate; apex acute, minutely hooded. Synsepal ovate, 2.4 - 2.9 cm long, 1.0 - 1.8 cm wide, shorter than labellum, white with 20 - 21 nerves; margins white; apex obtuse.  Labellum ovate, 2.0 - 3.8 cm long, 1.2 - 1.8 cm wide at widest point, green to yellow-green with darker green veins; labellar opening entire, rounded, flared; apical labellum rim minutely pubescent, edged with a thin brown line; apical labellum lining to 0.6 cm deep; lateral labellum rim flaring and sometimes slightly bulbous, spurs absent, edged with multicellular hairs; lateral labellum lining to 0.7 cm wide; claw face white with well-defined spots of 2 - 3 sizes and colors, upper spots small and green, lower spots larger and brown to maroon; claw interior pilose. Petals linear-lanceolate, 5.5 - 8.0 cm long, 0.4 - 0.9 cm wide, white, held at 10 – 15 ͦ angle from labellum, twisting 1- 3 turns; inner surface glabrous with sparse, short multicellular glandular hairs; basal hairs velutinous, dark red; margins sparsely ciliate, undulate; apex acute, often minutely bilobed, short glandular hairs present, but not densely congested. Staminode cordate to widely cordate, 0.3 - 0.5 cm long, 0.4 - 0.8 cm wide, green; apex acute to widely acute; basal margin and lateral lobes densely edged in shaggy maroon to black multicellular hairs. Column 0.3 - 0.5 cm long, green, sparsely pubescent with short, light colored hairs . Stigmatic area 0.4 - 0.5 cm wide. Ovary, including pedicel, 4 - 5 cm long, glabrous to sparsely pilose, green to maroon-brown. Capsule brown, glabrous, apex straight to slightly curved. Seeds to 0.5 mm long. Chromosome Number 2n=22 (Karasawa, 1980).

    Habitat

    Phragmipedium pearcei is distributed along the eastern edge of the Andes of Ecuador 132 and northern Peru, into the lowland wet Amazonian forest, from 200 to 1200 m in elevation. The species is usually found clinging to rocks along streams and rivers, but plants have been found in Equisetum marshes, as well as from trees on the edge of wet forest. When found along streams, they are often growing below the high water mark, and are frequently inundated by fast moving water.

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    Use

    According to an herbarium collection made by Pinkley (R) for an ethnobotanical study of the NW Amazon basin, the Kofan tribe boils P. pearcei in water, then drinks the infusion for stomach problems. The Kofan describe the plant as being rare.

    Images

    Distribution

    Native to:

    Ecuador, Peru

    Phragmipedium pearcei (Veitch ex J.Dix) Rauh & Senghas appears in other Kew resources:

    Date Reference Identified As Barcode Type Status
    Jan 1, 1989 Spruce, R. [3955], Peru K000201507
    Ecuador 52509.000
    Harling [3624], Ecuador K000078019
    s.coll. [s.n.], Peru 57391.000

    First published in Orchidee (Hamburg) 26: 62 (1975)

    Accepted by

    • Cribb, P. & Purver, C. (2017). Slipper Orchids of the Tropical Americas: 1-281. Natural History Publcations (Borneo), The Orchid Digest Corporation, Royal Botanic Gardens, Kew.
    • Gruß, O. (2003). A checklist of the genus Phragmipedium Orchid Digest 67: 213-241.
    • Govaerts, R. (2003). World Checklist of Monocotyledons Database in ACCESS: 1-71827. The Board of Trustees of the Royal Botanic Gardens, Kew.

    Literature

    Cypripedioideae: e-monocot.org
    • Reichenbach, H.G. Original description of Phragmipedium pearcei. 26, (1975).

    Sources

    Cypripedioideae: e-monocot.org
    All Rights Reserved

    Herbarium Catalogue Specimens
    'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0