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Bulbophyllum hapalocodon

Bulbophyllum hapalocodon

Bulbophyllum hapalocodon J.J.Verm., Schuit. & de Vogel, Males. Orchid J. 21 (2018) 66

Type: Mendum 92653 (holo E)

Epiphytes. Rhizome 0.15–0.2 cm diam.; rhizome scale leaves not long persistent, only few thin fibers remaining. Pseudobulbs 0.3–0.6 cm apart, (obliquely) erect, ovoid, 0.6–1.3 by 0.3–0.5 cm. Leaf petiole 0.4–0.7 cm long; blade elliptic(-oblong) to obovate, 1.5–2.6 by 0.4–0.6 cm, index 3.3–3.8; apex subacute. Inflorescences 11–12 cm long, solitary to few in a fascicle, 1-flowered; peduncle 6.5–7.0 cm long; scale leaves 3, the longest 0.3–0.4 cm long; floral bracts 0.35–0.4 cm long. Pedicel and ovary 0.2–2.6 cm long; basal node 0.28–0.3 cm above the floral bract attachment. Flower pendulous. Median sepal at the very base adnate to the laterals, towards the apex somewhat recurved, c. porrect, ovate, c. 2.4 by 0.53 cm, index 4.5–4.6, very thin; margins entire; glabrous; apex acuminate-caudate; 3-nerved. Lateral sepals as the median sepal but slightly oblique, c. 2.7 by 0.62 cm, index 4.3–4.4. Petals free, porrect, c. triangular, c. 0.04 by 0.07 cm, index 0.5–0.6, thin; margins entire; apex truncate; glabrous; 1-nerved. Lip in outline obovate-rhombiform, c. 0.24 by 0.3 cm, index c. 0.8 (without spreading), rather thick; near its base slightly recurved; margins entire; above with a rather inconspicuous basal cavity, basal teeth converging, leaving a depression in between, and then widening into a convex, flat-topped, median callus of obovate outline along the length of the lip, with 2 inconspicuous, slightly diverging ridges close together towards its base, with a deep median furrow in between which slightly widens towards the apex of the lip; below with a median ridge with an c. flat crest with a wide, shallow median groove towards the base of the lip; apex broadly rounded and slightly emarginate; glabrous. Column including rostellum c. 0.23 cm long; column-foot with a small, conical, obtuse central callus above the lip attachment; stigma elliptic, distinctly protruding at its base; rostellum distinctly protruding; stelidia absent; anther on underside with a narrow, rounded ridge, front drawn out into a thin, concave, triangular, c. acute beak, its surface glabrous; pollinia 4.
(after Vermeulen, Schuiteman & de Vogel 2018)

Sepals pale lemon yellow. Lip yellow

‘In moss’. Altitude 2600–2700 m

Malesia (New Guinea), endemic, see map

Indonesia (Papua Prov., Jayawijaya Regency)

Cool growing epiphyte


  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Dendrobieae
  • Subtribe Bulbophyllinae
  • Genus Bulbophyllum
  • Section Peltopus
  • Species Bulbophyllum hapalocodon

Bulbophyllum hapalocodon is similar to Bulbophyllum scutiferum but differs in the much longer sepals (median sepal c. 2.4 versus 0.45–1.15 cm long) which are acuminate-caudate (versus acute), and by the distinctly protruding lower margin of the stigma

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Bulbophyllum hapalocodon

Bulbophyllum hapalocodon J.J. Verm., Schuit. & de Vogel, drawing Jaap Vermeulen in Vermeulen, Schuiteman & de Vogel, Malesian Orchid Journal 21 (2018) 66, fig. 44