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Octarrhena aporoides

Octarrhena aporoides

Octarrhena aporoides (Schltr.) Schuit., Blumea 48 (2003) 512

Type: Schlechter 18713 (holo B, lost; iso AMES, BO)

Synonyms:

  • Chitonanthera aporoides Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 899
    - Type: Schlechter 18713 (holo B, lost; iso AMES, BO)
  • Chitonanthera oberonioides Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 900
    - Type: Schlechter 18695 (holo B, lost; iso AMES, L)

Epiphytic, pendulous, up to 25 cm long, several-stemmed. Rhizome very short; roots filiform, glabrous. Stem flexuose, thin, densely leafy, entirely covered by the equitant leaf-sheaths, unbranched. Leaves erect-patent, falcate-linear, acute, equitant, including the sheath 1.5-2.5 cm long, at the base [0.2] 0.25-0.35 cm wide. Inflorescences short, including the short peduncle 0.7-1 cm long, laxly 2-3-flowered. Floral bracts ovate, acute, somewhat surpassing or equalling the ovary. Flowers minute. Sepals oblong, subobtuse, glabrous, [0.2] 0.28 cm long. Lateral sepals oblique. Petals oblong, obtuse, very minutely papillose, about [one eighth to one seventh] one sixth as long as the sepals. Lip ligulate, gradually somewhat narrowed towards the apex, glabrous, obtuse, about as long as the sepals. Column thick, short, very minutely papillose, clinandrium abruptly bent backwards, dorsally deeply bifid. Anther reniform-cucullate, apiculate; pollinia 4, obliquely oblongoid; stipe distinct; viscidium linear, minute. Ovary cylindrical, glabrous, c. [0.1] 0.2 cm long.
After Schlechter, 1911-1914, as Chitonanthera aporoides Schltr.; measurements between square brackets taken from the description of C. oberonioides)


Flowers brownish, lip and column green (type specimen of Chitonanthera aporoides), or flower yellow-brown with dark brown lip and column (type specimen of C. oberonioides).

Epiphyte in upper montane forest; 1800 to 2400 m.

Malesia (New Guinea, endemic).

Papua New Guinea. See map

distribution in New Guinea

Cool growing epiphyte.

May, October, November.

  • Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 314, fig. 1206, as Chitonanthera aporoides Schltr.
  • Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 314, fig. 1207, as Chitonanthera oberonioides Schltr.
  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Podochileae
  • Subtribe Thelasiinae
  • Genus Octarrhena
  • Species Octarrhena aporoides

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Octarrhena aporoides

overview picture

Octarrhena aporoides

Chitonanthera aporoides Schltr., drawing R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 314, fig. 1206

Octarrhena aporoides

Chitonanthera oberonioides Schltr., drawing R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 314, fig. 1207

Octarrhena aporoides

Chitonanthera oberonioides Schltr., herbarium sheet, Schlechter 18695 (isotype specimen L)

Octarrhena aporoides

Chitonanthera aporoides Schltr., herbarium sheet, Schlechter 18713 (isotype specimen BO)