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Appendicula hooglandii

Appendicula hooglandii

Appendicula hooglandii Ormerod, Checkl. Papuasian Orch. (2017) 25, 463 (fig.).

Type: Hoogland 9190 (holo US; iso CANB, L, LAE).

Epiphytes. Rhizome short. Roots terete, slender, pubescent, 0.03-0.05 cm thick. Stems caespitose, terete, leafy throughout, to 34.5 by c.0.2 cm. Leaves oblong-lanceolate, 2.8-3.4 by 0.7-0.82 cm; leaf sheaths tubular, with a 0.2 cm deep gap opposite the leaf lamina; upper margins minutely irregularly dentate; apex 3-dentate. lnflorescences pseudoterminal and axillary, unbranched or with 1 branch, 2.8-4.6 cm long; peduncle to 3.5 cm long, covered by lanceolate, subfoliose sheaths; rachis 1.2-1.5 cm long, branch 0.8-1.5 cm long; floral bracts ovate-lanceolate, reflexed, 0.2-0.4 cm long, with acute apex, 3-nerved. Flowers many, dense, opening in succession. Pedicel and ovary club-shaped, c. 0.3 cm long. Median sepal oblong-elliptic, concave, 0.275 by 0.13 cm; midnerve thickened toward apex; 3-nerved; apex obtuse. Lateral sepals obliquely ovate, 0.26 (along upper margin) or 0.38 (along lower margin) cm long; apex subacute; midnerve keeled; 3 nerved; mentum obtuse-subtruncate, ellipsoid, 0.12-0.13 by c. 0.13 cm. Petals oblong, 0.2 by 0.075-0.09 cm; 1-nerved; apex obtuse. Lip elliptic-rhombic, 0.375 by 0.275 cm; keels only on hypochile, diverging, triangular in profile; apex obtuse with a small subacute mucro; 5-nerved. Column semiterete, c.0.095 cm long; column foot 0.195 cm long. (After Ormerod, 2017).

Flowers when young with a pale yellow ovary, purple at apex, tepals bright yellow, when old the flowers have a green ovary with purplish ridges, and yellow green tepals.

Epiphyte in oak forest. Altitude 1480 m.

Malesia (New Guinea).

Papua New Guinea, Morobe Prov. See map

Intermediate growing epiphyte, keep in shade.


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

Appendicula hooglandii is similar to A. lutea in habit, petal- and mentum shape and the position of the callus on the lip, but differs the larger leaves (2.8-3.4 by 0.7-0.82 versus 1.5-2.5 by 0.35-0.6 cm), axillary and pseudoterminal inflorescences (versus only pseudoterminal), an oblong-elliptic median sepal (versus broadly ovate), an ovate lip lamina (versus elliptic), and a distinct rostellum with lanceolate lobes (versus rostellum abbreviated).

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Appendicula hooglandii

Appendicula hooglandii Ormerod, drawing by Paul Ormerod in Checkl. Papuasian Orch. (2017) 25, 463 (fig.).