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Bulbophyllum acropogon

Bulbophyllum acropogon

Bulbophyllum acropogon Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 776

Type: Schlechter 18561 (holo B, lost; iso BO, K)

Epiphyte, small, 12-19 cm high. Rhizome short. Roots filiform, flexuose, glabrous. Pseudobulbs ovoid, 1-2 by 0.6-0.9 cm below the middle; 1-leaved. Leaf erect, elliptic, acuminate, glabrous; base abruptly narrowed into a 2.5-6.5 cm long petiole; blade 6-11 by 1.8-4 cm near the middle. Inflorescence 1-flowered, 2-2.5 cm long, with a few small peduncle-scales. Floral bracts small, cucullate, apiculate, many times shorter than the pedicel. Flower erect. Sepals oblong, subobtuse, 1.2 cm long. Lateral sepals oblique, lower margin towards the base somewhat dilated. Petals oblique, at the base subtriangular, ligulate, obtuse, 0.38 cm long; front margin densely and shortly finely ciliate; apex shortly barbate. Lip oblong-ligulate, obtuse, 0.8 cm long; in the basal half on the upper side very minutely papillose-puberulous and with swollen margins. Column medium-sized; stelidia very small, falcate-subulate, dorsally with a denticulate additional lobule. Anther trapezoid-cucullate, in front slightly emarginate, umbonate, glabrous. Pedicel and ovary glabrous, 3.8 cm long. (After Schlechter, 1913)


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Epiphyte in lower montane forest; 1400-1600 m.

Malesia (New Guinea).

Papua New Guinea; see map

Distribution of Bulbophyllum acropogon in New Guinea

Intermediate growing epiphyte.

January, October.

  • Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 259, fig. 989
  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Dendrobieae
  • Subtribe Bulbophyllinae
  • Genus Bulbophyllum
  • Section Papulipetalum
  • Species Bulbophyllum acropogon

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Bulbophyllum acropogon

Overview picture of Bulbophyllum acropogon Schltr.

Bulbophyllum acropogon

Bulbophyllum acropogon Schltr., plant habit, photo E.F. de Vogel, Leiden cult. 20030395

Bulbophyllum acropogon

Bulbophyllum acropogon Schltr., flowers, oblique front view, photo E.F. de Vogel, Leiden cult. 20030395

Bulbophyllum acropogon

Bulbophyllum acropogon Schltr., flowers, oblique lateral view, photo E.F. de Vogel, Leiden cult. 20030395

Bulbophyllum acropogon

Bulbophyllum acropogon Schltr., flower, oblique lateral view, photo E.F. de Vogel, Leiden cult. 20030395

Bulbophyllum acropogon

Bulbophyllum acropogon Schltr., floral analysis, drawing J.J. Smith, from Mayr 977

Bulbophyllum acropogon

Bulbophyllum acropogon Schltr., floral analysis, R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 259, fig. 989

Bulbophyllum acropogon

Bulbophyllum acropogon Schltr., herbarium sheet, Schlechter 18561 (isotype specimen BO)

Bulbophyllum acropogon

Bulbophyllum acropogon Schltr., herbarium sheet, Schlechter 18561 (isotype specimen K), photo copyright the Board of Trustees of the Royal Botanic Gardens, Kew