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Crepidium brachycaulos

Crepidium brachycaulos

Crepidium brachycaulos (Schltr.) Szlach., Fragm. Florist. Geobot. Suppl. 3 (1995) 124

Type: Schlechter 18158 (holo B, lost)


  • Microstylis brachycaulos Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1911) 117
  • Malaxis brachycaulos (Schltr.) P.F.Hunt, Kew Bull. 24 (1970) 78
  • Pseudoliparis brachycaulos (Schltr.) Szlach. & Marg., Adansonia 21 (1999) 276

Epiphyte, sometimes terrestrial, 6—25 cm tall, slender, erect. Rhizome very short. Stem 1.5—3 by 0.8—1 cm diam., fusiform, covered by leaf petioles and sheaths. Leaves 2—3; leaf sheath (0.8)1.5—2.5(2.8) by 0.4—1.1 cm; petiole erect, 0.7-1.5 by 0.5—0.9 cm when spread; blade obliquely ovate, oblong-ovate to broadly lanceolate, 3.5—7 by 2—4.3 cm; apex attenuate, acuminate to apiculate; 3—5-nerved. Inflorescence 9—12 cm long; raceme 8—20-flowered, dense, rather delicate, c. 2 cm long. Sterile bract erect, lanceolate, attenuate, c. 0.4 by 0.08—0.1 cm; apex acuminate; 1-nerved. Floral bracts lanceolate, recurved, 0.25—0.38 by 0.06—0.08 cm; apex acuminate; 1-nerved. Flowers 0.55—0.7 by 0.35—0.56 cm wide. Median sepal ovate to oblong-ovate, attenuate, 0.4—0.46 by 0.2—0.26 cm; apex subacute to acute; 3-nerved. Lateral sepals obliquely ovate, 0.35—0.45 by 0.23—0.3 cm, base slightly obcordate; apex obtuse to subacute. Petals obliquely lanceolate, 0.48—0.52 by 0.12—0.15 cm; apex obtuse, usually bent backwards. Lip sagittate, widest slightly above its base, 0.4—0.5 by 0.26—0.3 cm; blade semi-orbicular in distal part, 2—2.5 mm long; top subapiculate; callus lamellae curved, continuing almost to lamina apex, simple, 0.16—0.2 by 0.02—0.04 cm high, 0.02—0.03 cm wide, lamina between lamellae flat and narrow; auricles elongate, oblique oblanceolate, obtuse to subacute at apices, parallel, 0.2—0.25 by 0.08—0.12 cm wide. Column erect, minutely papillose, 0.1—0.15 mm long, 0.4—0.6 mm; upper half with a small, erect, cone-like appendage 0.15-0.25 by 0.03—0.04 cm; stelidia folded back from anther, oblong, obliquely truncate; apex, 0.04—0.06 by 0.025—0.032 cm wide. Anther 0.04—0.05 by 0.03—0.04 cm wide. Fruit, oblong-elliptic to oblong-obovate, c. 0.08 by c. 0.04 cm.
(after Margońska, 2005)

Leafy stem, grey-green. Leaf sheath green; blade above green to bluish- green, below paler grey-green. Peduncle light green. Flowers, brownish flesh-coloured, olive-green towards the centre. Lip lamellae, darker coloured, particularly at distal margins. Column pale greenish-yellow. Stelidia dark- green. Anther pale-yellow to whitish-green; rostellum greenish to dark-green. Fruit green to greenish fawn.
(after Margońska, 2005)

Epiphyte on tree-trunks in forest, also in Castanopsis regrowth area near road, amongst leaf mould on bank, in shaded places. Altitude 1100—1200 m.

Malesia (New Guinea, endemic).

Papua New Guinea. Madang and Morobe Provinces; see map

distribution in New Guinea

Intermediate growing epiphyte, requires shaded position.


  • 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 brachycaulos (Schltr.) Szlach. & Marg.
  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Malaxideae
  • Genus Crepidium
  • Species Crepidium brachycaulos

Crepidium brachycaulos differs from Crepidium breviscapa in the shape of upper part of dorsal sepal, length of lip auricles, and especially in the shape of gynostemium append age. (after Margonska 2005)

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Crepidium brachycaulos

Crepidium brachycaulos (Schltr.) Szlach. (as Pseudoliparis brachycaulos). Drawing by Hanna B. Margońska in Szlach. & Marg., Adansonia 21 (1999) 276;

Crepidium brachycaulos

Crepidium brachycaulos (Schltr.) Szlach. (as Microstylis brachycaulos Schltr.), drawing R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1923) t. 45, fig. 155