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This species is accepted, and its native range is Bolivia.


Toscano de Brito, A.L.V. Kew Bull (2012) 67: 495.

IUCN (2001) category Data Deficient (DD).
Bolivia: Cochabamba.
Epiphytic in montane wet forest; alt. 1840 m.
Morphology General Habit
Plant caespitose, to c. 60 mm tall including inflorescence
Morphology Leaves
Apical leaf similar to the lateral ones, lacking a leaf-sheath Lateral leaves few (c. 3), slightly petiolate, articulate, sheathing at base, the leaf-sheaths to 5 mm long, the blade narrowly elliptic, rigid, slightly twisted towards the base, acute, green, 15 – 25 × 3 – 4 mm
Morphology Reproductive morphology Flowers
Flower resupinate, yellow
Morphology Reproductive morphology Flowers Calyx
Lateral sepals somewhat oblique, broadly elliptic, obscurely falcate, abaxially, obscurely keeled, spreading, their main axis more or less perpendicular with respect to that of the dorsal sepal, flat or slightly concave towards the obtuse apex, c. 3 × 1.8 mm Dorsal sepal slightly obovate, abaxially, obscurely keeled, the margins obscurely erose towards the obtuse apex, c. 3 × 1.8 mm
Morphology Reproductive morphology Flowers Column
Column sigmoid, lacking lateral appendages at base, c. 1 mm long (excluding the rostellum), the base swollen, terete and bearing a rounded stigmatic cavity above, the mid-portion slender, dorsiventrally flattened and pronouncedly bent forward; rostellum conspicuous, c. 2 mm long, markedly curved forwards and upwards, sulcate, caudate, acute; anther operculate, slightly shorter than the rostellum when placed on the column, clavate in outline, markedly beaked, c. 2 mm long, the beak long, recurved and parallel to the rostellum, acute; pollinia arranged in two superposed subequal pairs, subobovoid; stipe elongate, slightly dilated near the point of attachment of the pollinia, c. 2 mm long; viscidium oblong, slightly concave
Morphology Reproductive morphology Flowers Corolla
Petals obovate-suborbicular, shortly unguiculate, spreading to slightly recurved, margins erose from near the base to about near the apex, c. 3 × 2.5 mm Lip deeply concave, laterally compressed, somewhat ovate in outline, c. 4 × 2 mm, smooth, glabrous, except for a tuft of minute, glandular trichomes near the base (possibly a trichomalelaiophore), the base laterally provided with two very small, uncinate, tooth-like appendages, c. 0.5 mm long, the apex obtuse but provided with a short acuminate, incurved tip
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary slightly ridged in cross-section, c. 1 mm long
Morphology Reproductive morphology Flowers Pedicel
Pedicel twisted, angular in cross-section, c. 3 mm long
Morphology Reproductive morphology Fruits
Capsule not seen.
Morphology Reproductive morphology Inflorescences
Inflorescence 7 – 9-flowered, racemose, erect, lateral, emerging from the base of the pseudobulb, to c. 50 mm long; peduncle terete, obscurely angular in cross-section, c. 25 mm long, bearing to 4 triangular sterile bracts to c. 3 mm long; rachis somewhat flexuous, slightly angular in cross-section, to c. 25 mm long; floral bracts similar to the sterile ones, shorter and decreasing in size towards the apex of inflorescence
Morphology Roots
Roots several, terete, flexuous, glabrous
This new species is closely related to Zygostatesmorenoi, a Bolivian species recently described from the department of Santa Cruz. Nevertheless, Z. chaparensis is readily distinguished from Z. morenoi by its erect inflorescence, the uniform yellow flowers, and mainly by the deeply concave and laterally compressed lip, which possesses two lateral, uncinate, tooth-like appendages at the base. Z. morenoi possesses a pendent inflorescence and flowers with light yellow tepals and a greenish maroon lip, which is also concave but not as deep nor laterally compressed. Sepals, petals and column shapes are otherwise very similar in both species.
Vegetative Multiplication Pseudobulbs
Pseudobulb unifoliate, ovoid, 3 – 5 × 2.5 – 3 mm

Native to:


Zygostates chaparensis Toscano & R.Vásquez appears in other Kew resources:

First published in Kew Bull. 67: 495 (2012)

Accepted by

  • Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. Scientific Data 8: 215.


Kew Bulletin

  • Chase, M. W. & Toscano de Brito, A. L. V. (2009). Zygostates. In: A. M. Pridgeon, P. J. Cribb, M. W. Chase & F. N. Rasmussen (eds), Genera Orchidacearum, Volume 5: Epidendroideae (Part Two), pp. 391 – 394. Oxford University Press, Oxford.
  • Dodson, C. H. & Vásquez, R. (1989). Orchids of Bolivia. Icon. Pl. Trop. 2: t. 213.
  • IUCN (2001). IUCN Red List Categories and Criteria Version 3.1. Prepared by the IUCN Species Survival Commission. IUCN, Gland and Cambridge.
  • Senghas, K. (1997). Two new orchids from amateur’s collections. Caesiana 8: 21 – 26.
  • Senghas, K. (2003). ZweiweitereneueOrchideenartenaus der Kurpfalz. J. Orchideenfreund 10: 255 –261.
  • Toscano de Brito, A. L. V. (2001). Systematic review of the Ornithocephalus group (Oncidiinae; Orchidaceae) with comments on Hofmeisterella. Lindleyana 16: 157 – 217.
  • Toscano de Brito, A. L. V. (2007). A new species and a new combination in the Ornithocephalus group of subtribeOncidiinae (Orchidaceae). Selbyana 28: 109 – 111.
  • Vásquez, R. (2003). Zygostatesriefenstahliae (Orchidaceae) – a new species from an isolated dry inter-Andean valley in Bolivia. Revista Soc. Boliv. Bot. 4: 41 – 44.
  • Williams, N. H., Whitten, M. W. & Dressler, R. L. (2005). Molecular systematics of Telipogon (Orchidaceae: Oncidiinae) and its allies: nuclear and plastid DNA sequence data. Lankesteriana 5: 163 – 184.

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at and
© Copyright 2017 World Checklist of Selected Plant Families.

Kew Bulletin
Kew Bulletin

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at and
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families.