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This genus is accepted, and its native range is Borneo to Papuasia.

[A-EM]
General Description

Epiphytic herbs. Roots from basal part of the stem opposite the leaves. Stem spreading to pendent, sometimes erect, leafy. Leaves distichous, conduplicate, linear, apex unequally bilobed or sometimes acute. Inflorescence pendent, racemose, sometimes erect and paniculate, axillary, 1–4; peduncle and rachis glabrous or covered by stellate hairs, few- to many-flowered. Flowers dimorphic or not; basal flowers, when different from the others, 2–4, yellow, highly scented, unspotted or lightly spotted with red-purple dots; upper flowers (or all flowers in non-dimorphic taxa) blotched or heavily spotted with red-purple or maroon, labellum white to pale yellow, marked with red-purple or maroon. Labellum fleshy, hinged with base of column, trilobed, side lobes erect, oblong to subquadrate, midlobe with a raised, laterally flattened callus and an erect callus at base of larger callus. Column papillose-pubescent or glabrous, with a column foot; anther papillose or not, pollinia four in two appressed pairs, transversely oblong to rounded-obdeltoid, stipe oblong to pandurate, about as long as the pollinia, viscidium elliptic.

Ecology

Species are epiphytes in forests from 0 to 1300 m. Dimorphorchis lowii and D. rossii Fowlie are mainly found in riverine forests overhanging the water, whereas D. beccarii usually grows as a lithophyte (or semi-terrestrial) on exposed rocky outcrops.

Distribution

Dimorphorchis is a genus of seven species from Borneo, the Philippines, Sulawesi, New Guinea, and the Solomon Islands. It probably also occurs in the Moluccas. Dimorphorchis s.s., comprising taxa with dimorphic flowers, is endemic to Borneo, with five species and one variety.

[A-EM]
Use

No uses have been reported for Dimorphorchis; it is occasionally cultivated.

Native to:

Bismarck Archipelago, Borneo, New Guinea, Philippines, Solomon Is., Sulawesi

Dimorphorchis Rolfe appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Julia, S. et al. [S 98271], Sarawak K000718145

First published in Orchid Rev. 27: 149 (1919)

Accepted by

  • Govaerts, R. (2003). World Checklist of Monocotyledons Database in ACCESS: 1-71827. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Pridgeon, A.M., Cribb, P.J., Chase, M.C. & Rasmussen, F.N. (2014). Genera Orchidacearum 6: 1-544. Oxford University Press, New York, Oxford.

Aeridinae: e-monocot.org
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Herbarium Catalogue Specimens

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. 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 2021. 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