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Bulbophyllum psilorhopalon

Bulbophyllum psilorhopalon

Bulbophyllum psilorhopalon Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 881

Type: Schlechter 19378 (holo B, lost; iso AMES 2x, BO, L)

Synonyms:

  • Epicranthes psilorhopalon (Schltr.) Garay & W.Kittr., Bot. Mus. Leafl. 30 (1985) 185 (51)

Epiphyte, pendulous, not or sparsely branched, to 60 cm long. Rhizome stem-like. Roots filiform, glabrous. Pseudobulbs cylindrical, subparallel to the rhizome, 0.7-1 by 0.3 cm; 1-leaved. Leaf elliptic, acute, 2--4.2 by 0.8-1.2 cm near the middle; base cuneate. Inflorescences 1-flowered, fascicled, developing in succession, short, with a few small peduncle-scales. Floral bracts very small, much shorter than the ovary. Sepals lanceolate, subacute, glabrous, 0.55 cm long. Lateral sepals oblique. Petals transverse; base 0.23 cm wide; in front obtusely angled, on the upper side with a short ascending arm carrying 5 stalked, subulate, acute, flexuose, glabrous appendages, in the middle with a sixth similar appendage, on the lower angular side with 4 equal, acute appendages; petals with appendages as long as the sepals. Lip fleshy, oblongoid, obtuse, 2.5 mm long; basal auricles 2, large, rounded, acute; upper side with 2 longitudinal keels; in the middle up to near the apex underneath and on the sides with large globose papillae. Column short, thick; stelidia very short, triangular, subcrenulate; column-foot somewhat incurved. Anther cucullate, umbonate, glabrous; apex notched. Ovary shortly pedicellate, glabrous, 0.3 cm long. (After Schlechter, 1913)


Sepals red, inside somewhat spotted. Petals pink with blackish-brown appendages. Lip dark red. Column white.

Epiphyte in lowland forest; 60-500 m.

Malesia (New Guinea).

Papua New Guinea; see map

Distribution of Bulbophyllum psilorhopalon in New Guinea

Warm growing epiphyte.

February, April, May.

  • Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 308, fig. 1184
  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Dendrobieae
  • Subtribe Bulbophyllinae
  • Genus Bulbophyllum
  • Section Epicrianthes
  • Species Bulbophyllum psilorhopalon

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Bulbophyllum psilorhopalon

Overview picture of Bulbophyllum psilorhopalon Schltr.

Bulbophyllum psilorhopalon

Bulbophyllum psilorhopalon Schltr., habit, photo P. Jongejan, based on Jongejan 4664

Bulbophyllum psilorhopalon

Bulbophyllum psilorhopalon Schltr., flower, photo P. Jongejan, based on Jongejan 4664

Bulbophyllum psilorhopalon

Bulbophyllum psilorhopalon Schltr., flower detail, centre of flower, oblique lateral view, photo P. Jongejan, based on Jongejan 4664

Bulbophyllum psilorhopalon

Bulbophyllum psilorhopalon Schltr., flower detail, centre of flower, oblique lateral view, photo P. Jongejan, based on Jongejan 4664

Bulbophyllum psilorhopalon

Bulbophyllum psilorhopalon Schltr., J.J. Vermeulen, sketch, flower sepal, petal and lip

Bulbophyllum psilorhopalon

Bulbophyllum psilorhopalon Schltr., J.J. Vermeulen, sketch, plant habit and flower analysis

Bulbophyllum psilorhopalon

Bulbophyllum psilorhopalon Schltr., floral analysis, R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 308, fig. 1184

Bulbophyllum psilorhopalon

Bulbophyllum psilorhopalon Schltr., herbarium sheet, Schlechter 19378 (isotype specimen BO)