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Appendicula topensabe

Appendicula topensabe

Appendicula topensabe Ormerod, Checkl. Papuasian Orch. (2017) 29.

Type: Schodde 1436 (holo A; iso CANB, L).

Epiphytes. Rhizome not seen. Roots terete, slender, scattered on lower half of stem. Stem terete, lower part laxly branched, near the apex densely branched, sublaxly to densely leafy, to 69 by 0.1-0.2 cm; branches to 18 cm long. Leaves on main stem absent, on branches ligulate, 0.2-0.4 cm apart, to 2 by 0.15 cm; leaf sheaths tubular, truncate and with a gap opposite the leaf axis; apex acute. Inflorescence terminal, flexuous to fractiflex, to 1.2 cm long; peduncle 0.4-0.5 cm long; rachis 0.7 cm long; floral bracts to 0.6 by 0.3 cm, entire, upper ones 3-lobed and shield-shaped, with a long lanceolate point. Flowers 6, lax, flowering in succession. Pedicel and ovary club-shaped, 0.3 cm long. Median sepal ovate, concave, 0.32 by 0.22 cm; apex obtuse; 1-nerved. Lateral sepals connate for 0.25 cm, broadly obliquely ovate; apex acute; 1-nerved, 0.35 (along upper margin) or 0.49 (along lower margin) by 0.3 cm; mentum broadly elliptic, rounded, 0.15 by, 0.22-0.25 cm. Petals oblong, 0.3 by 0.12 cm; apex acute; 1-nerved. Lip spatulate-cuneate, 0.42-0.43 by 0.3 cm; midlobe transversely oblong, 0.1 by 0.22 cm; callus spatulate-cuneate, at the base obtuse, in lower half semi-tubular; apex truncate-emarginate, with an obtuse apiculus. Column short, 0.2 cm long; column foot C-shaped, 0.2 cm long. (After Ormerod 2017)

Flowers white tipped yellow, lip tipped purple.

Epiphyte in mixed mid-montane oak forest. Altitude 2070 m.

Malesia (New Guinea, endemic).

Papua New Guinea, Southern Highlands Prov. See map

Cool growing epiphyte, keep in shade.


  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Podochileae
  • Subtribe Podochilinae
  • Genus Appendicula
  • Section Chaunodesme
  • Species Appendicula topensabe

Appendicula topensabe is similar to A. aberrans but differs in the simple lip callus which is not dilated at the base into lateral projections.

The epithet is derived from the supposed Mendi word for this plant: topensabe.

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Appendicula topensabe

Appendicula topensabe Ormerod, drawing by Paul Ormerod in Checkl. Papuasian Orch. (2017) 29.