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Styloglossum habbemense

Styloglossum habbemense

Styloglossum habbemense (Ormerod & P.J.Cribb) T.Yukawa & P.J.Cribb, Bull. Natl. Mus. Nat. Sci., Tokyo, B. 40 (2014) 148.

Type: Brass 10259 (holo AMES!; iso L!).


  • Calanthe habbemensis Ormerod & P.J. Cribb, Malesian Orchid Journal 8 (2011)51, fig. 7.

Creeping rhizomatous herb. Rhizome 20 cm or more long, creeping, stem-like; roots borne at the nodes. Erect stems up to 8 cm apart on the rhizome, flexuous elongate, terete, 5—6 cm tall; shortly tomentose. Leaves up to 4, suberect, in two rows, articulate, linear-lanceolate, 6—28 by 0.6—1 cm; base narrowed in a 3—4 cm long petiole; apex acuminate; glabrous. Inflorescence basal, erect, glabrous; peduncle terete, 2 cm long, covered in basal third with tubular, acute sheathing bracts; rachis 8-12- flowered; floral bracts caducous. Flowers suberect, glabrous. Median sepal concave, oblong- elliptic, 0.7—0.75 by 0.4 cm; apex rounded. Lateral sepals obliquely elliptic, 0.75—0.8 by 0.45—0.5 cm; apex acute. Petals obliquely spatulate-elliptic, 0.7 by 0.4 cm; apex rounded. Lip adnate to the column, 3-lobed; lateral lobes oblong; midlobe ovate, 0.3 by 0.25 cm, with acute apex, its apical margins crenulate; in the mouth of the spur with a 2-ridged callus; spur almost parallel to the ovary, cylindrical, 0.5—0.55 cm long; rounded at the apex. Column slender, dilated somewhat near the apex, 0.35 cm long.
(after Cribb, Ormerod & Dudley 2011)

Flowers translucent white, with an orange spot on the lip.

Terrestrial in mossy forest in humus base of trunks and in moss hummocks. Altitude 2600 m.

New Guinea (endemic).

Papua (Indonesia): Jayawijaya Regency; see map

Cold growing epiphyte.


  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Undetermined
  • Subtribe Collabiinae
  • Genus Styloglossum
  • Species Styloglossum habbemense

Calanthe habbemensis resembles C. lancilabris Ormerod & P.J. Cribb in habit but has caducous bracts, a broader midlobe to the lip with a prominent bilobed basal callus and a somewhat conical spur.

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Styloglossum habbemense

Styloglossum habbemense (as Calanthe habbemensis Ormerod & P.J. Cribb), drawn by Juliet Beentje from the holotype: Brass 10259 in Malesian Orchid Journal 8 (2011)51, fig. 7.