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Crepidium incurvum

Crepidium incurvum

Crepidium incurvum (J.J.Sm.) Szlach., Fragm. Florist. Geobot. Suppl. 3 (1995) 127

Type: Versteeg 1070 (holo BO, BO-spirit coll.; iso L)


  • Microstylis incurva J.J.Sm., Bull. Dép. Agric. Indes Néerl. 19 (1908) 29
  • Malaxis incurva (J.J.Sm.) Ames & C.Schweinf. in Ames, Orchidaceae 6 (1920) 73
  • Pseudoliparis incurva (J.J.Sm.) Szlach. & Marg., Adansonia 21 (1999) 277

Plant erect, c. 30 cm tall. Leafy stem fusiform, tenuous, covered by leaf petioles and sheaths, 7—8 cm long; rooted base. Leaves c. 7; petiole and sheath erect, 2 3 cm long; blade oblique, oblong-ovate, attenuate, 6.5 7.5 by 2.5—2.7 cm; apex acuminate, undulate at margins, 5-nerved. Inflorescence about 23 by elongate; peduncle 11 13cm long; raceme many-flowered, dense. Sterile bract usually few, erect, elongate, linear, attenuate; apex acuminate; 1-nerved. Floral bracts recurved, linear, c. 0.47 cm long; apex acuminate; 1-nerved. Pedicel c. 0.05 cm long; ovary c. 0.35 cm long; sinuate. Flowers about 0.925 cm long and 0.47 cm wide. Median sepal c. 0.575 by c. 0.27 cm, oblong-ovate; apex obtuse; slightly convex. Lateral sepals c. 4 mm long, 2.7 mm, oblique, ovate; base slightly obcordate; apex obtuse. Petals c. 4.7 mm long, c. 0.7 mm, linear, somewhat convex; apex obtuse; usually reflexed. Lip widest at its base, elliptic in outline, c. 0.6 by c. 0.43 cm; lamina c. 0.3 cm long; distal part semiorbicular; top apiculate with reflexed tip, lamellae parallel,, simple, 0.27—0.29 by c. 0.03 cm high, c. 0.04 cm thick, enclosed area smooth, shallowly concave; lateral lobes subparallel, elongate triangular, somewhat falcate, c. 0.3 by 0.18—0.2 cm; apex obtuse. Gynostemium entire, recurved, c. 0.175 by 0.04—0.06 cm; upper half with a small, erect, distinctly turned-up, cone-like appendage c. 0.02 by 0.01—0.015cm; staminodes abbreviate, as long as the anther, c. 0.75 mm long, 0.5—0.6 mm, with truncate apex, distinctly folded back from the anther. Anther 0.05—0.06 by 0.03— 0.04 cm; top triangular, rounded, c. 0.5 mm long. Fruit oblong, clavate, c. 0.85 by c. 0.6 cm; pedicel 4—5 mm long.
(after Margonska, 2005)

Flower, orange- yellow, lip darker. Column black-brown, paler coloured near the base; staminodes darker coloured. Anther pale yellow to pale green. Fruit middle green to fawn.
(after Margonska, 2005)

Terrestrial in Metroxylon swamp. Altitude c. 450 m.

Malesia (New Guinea, endemic).

Papua (Indonesia): Asmat Regency; see map

distribution in New Guinea

Warm growing terrestrial, requires shaded position.


  • Smith, J.J., Nova Guinea 8, 1 (1909) 31, t. 10, fig. 31, as Microstylis incurva J.J.Sm.
  • Margońska, H. B., Materials towards a revision of the genus Pseudoliparis (Orchidaceae, Malaxidinae). 3. Section Pseudoliparis (2005) Ann. Bot. Fennici 42: 267—291, fig. 1-17, as Pseudoliparis incurva (J.J. Sm.) Szlach. & Marg.
  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Malaxideae
  • Genus Crepidium
  • Section Pseudoliparis
  • Species Crepidium incurvum

Crepidium incurvum is characterised by the obtuse tepals, the linear petals, the rounded distal margin of lip, the distinctly apiculate and reflexed top, and the recurved gynostemium with truncate staminodes and a minute, turned-up appendage.
(after Margonska, 2005)

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Crepidium incurvum

Crepidium incurvum (J.J.Sm.) Szlach. (as Microstylis incurva J.J.Sm.), floral analysis, drawing J.J. Smith, based on Versteeg 1070

Crepidium incurvum

Crepidium incurvum (J.J.Sm.) Szlach. (as Microstylis incurva J.J.Sm.), lip, drawing J.J. Smith, based on Versteeg 1070

Crepidium incurvum

Crepidium incurvum (J.J.Sm.) Szlach. (as Microstylis incurva J.J.Sm.), herbarium sheet, Versteeg 1070 (holotype specimen BO)