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Bulbophyllum macrorhopalon

Bulbophyllum macrorhopalon

Bulbophyllum macrorhopalon Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 882

Type: Schlechter 18576 (holo B, lost)

Synonyms:

  • Epicranthes macrorhopalon (Schltr.) Garay & W.Kittr., Bot. Mus. Leafl. 30 (1985) 184 (50)

Epiphyte, stout, pendulous, not or sparsely branched. Rhizome stem-like. Roots filiform, glabrous. Pseudobulbs 4-6 cm apart, cylindrical, 1.7-2.3 by 0.35-0.5 cm above the base; 1-leaved. Leaves elliptic, acuminate, 6.5-10 by 3-4 cm in the middle. Inflorescences 1-flowered, single, short, with a few small peduncle-scales. Floral bracts very small, much shorter than the ovary. Sepals elliptic, shortly acuminate, glabrous, 0.9 cm long. Lateral sepals oblique, somewhat narrower than the median one. Petals at the base obliquely elliptic, deeply split into three, towards the apex narrowing segments, each with a cylindrical, strongly acuminate, minutely and densely papillose appendage, the median appendage larger than the lateral ones, 0.65 by 0.25 cm in the middle; petals including the appendages about as long as the sepals. Lip fleshy, elliptic, 0.5 cm long; above longitudinally grooved, with 2 keels; underneath verruculose. Column short, thick; stelidia triangular, subobtuse; column-foot somewhat incurved. Anther quadrangular-cucullate, umbonate, glabrous; in front subretuse, with thickened margins. Ovary cylindrical, glabrous, including the pedicel 1.3 cm long. (After Schlechter, 1913)


Sepals green, inside with red spots. Petals white with greenish appendages with violet spots.

Epiphyte in montane forest; 1800-2300 m.

Malesia (New Guinea).

Papua New Guinea; see map

Distribution of Bulbophyllum macrorhopalon in New Guinea

Cool growing epiphyte.

February, March, April, June, November.

  • Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 309, fig. 1186
  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Dendrobieae
  • Subtribe Bulbophyllinae
  • Genus Bulbophyllum
  • Section Epicrianthes
  • Species Bulbophyllum macrorhopalon

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Bulbophyllum macrorhopalon

Overview picture of Bulbophyllum macrorhopalon Schltr.

Bulbophyllum macrorhopalon

Bulbophyllum macrorhopalon Schltr., plant habit, photo P. Jongejan, collection Royal Botanic Gardens, Kew, T.M. Reeve, cult. P. Jongejan 554

Bulbophyllum macrorhopalon

Bulbophyllum macrorhopalon Schltr., stem part with flower, oblique lateral view, photo P. Jongejan, collection Royal Botanic Gardens, Kew, T.M. Reeve, cult. P. Jongejan 554

Bulbophyllum macrorhopalon

Bulbophyllum macrorhopalon Schltr., flower, oblique front view, photo P. Jongejan, collection Royal Botanic Gardens, Kew, T.M. Reeve, cult. P. Jongejan 554

Bulbophyllum macrorhopalon

Bulbophyllum macrorhopalon Schltr., flower detail, centre of flower, oblique front view, photo P. Jongejan, collection Royal Botanic Gardens, Kew, T.M. Reeve, cult. P. Jongejan 554

Bulbophyllum macrorhopalon

Bulbophyllum macrorhopalon Schltr., flower detail, petal with appendages, lateral view, photo P. Jongejan, collection Royal Botanic Gardens, Kew, T.M. Reeve, cult. P. Jongejan 554

Bulbophyllum macrorhopalon

Bulbophyllum macrorhopalon Schltr., STEREO, stem part with flower, oblique front view and bud, photo A. Schuiteman, Leiden cult. 20030367

Bulbophyllum macrorhopalon

Bulbophyllum macrorhopalon Schltr., STEREO, flower detail, centre of flower, oblique front view, photo A. Schuiteman, Leiden cult. 20030367

Bulbophyllum macrorhopalon

Bulbophyllum macrorhopalon Schltr., flower with possible pollinators, photo T. M. Reeve, based on Reeve PNGH 542

Bulbophyllum macrorhopalon

Bulbophyllum macrorhopalon Schltr., plant habit, photo E.F. de Vogel, Leiden cult. 20030367 (de Vogel et al.) from Papua New Guinea, 2003036720030367, Central Prov.

Bulbophyllum macrorhopalon

Bulbophyllum macrorhopalon Schltr., flower, front view, photo E.F. de Vogel, Leiden cult. 20030367 (de Vogel et al.) from Papua New Guinea, 2003036720030367, Central Prov.

Bulbophyllum macrorhopalon

Bulbophyllum macrorhopalon Schltr., flower, front view, photo E.F. de Vogel, Leiden cult. 20030367 (de Vogel et al.) from Papua New Guinea, 2003036720030367, Central Prov.

Bulbophyllum macrorhopalon

Bulbophyllum macrorhopalon Schltr., centre of flower, front view, photo E.F. de Vogel, Leiden cult. 20030367 (de Vogel et al.) from Papua New Guinea, 2003036720030367, Central Prov.

Bulbophyllum macrorhopalon

Bulbophyllum macrorhopalon Schltr., flower, oblique front view, photo E.F. de Vogel, Leiden cult. 20030367 (de Vogel et al.) from Papua New Guinea, 2003036720030367, Central Prov.

Bulbophyllum macrorhopalon

Bulbophyllum macrorhopalon Schltr., flower at the end of anthesis, oblique front view, photo E.F. de Vogel, Leiden cult. 20030367

Bulbophyllum macrorhopalon

Bulbophyllum macrorhopalon Schltr., flower, oblique lateral view, photo A. Schuiteman, Leiden cult. 20030367

Bulbophyllum macrorhopalon

Bulbophyllum macrorhopalon Schltr., flower with possible pollinators, probably fungus gnats, photo T. M. Reeve, based on Reeve PNGH 542

Bulbophyllum macrorhopalon

Bulbophyllum macrorhopalon Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 882, A. Walsmit Sachs, drawing, plant habit and flower analysis, based on Schlechter 18576 (holo B, lost)

Bulbophyllum macrorhopalon

Bulbophyllum macrorhopalon Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 882, A. Walsmit Sachs, drawing, anther, pollinia and petal appendages, based on Schlechter 18576 (holo B, lost)

Bulbophyllum macrorhopalon

Bulbophyllum macrorhopalon Schltr., floral analysis, R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 309, fig. 1186