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Bulbophyllum arfakianum

Bulbophyllum arfakianum

Bulbophyllum arfakianum Kraenzl., Bot. Jahrb. Syst. 34 (1904) 250

Type: Beccari 889 (holo FI)

Synonyms:

  • Hyalosema arfakianum (Kraenzl.) Rysy, J. Orchideenfreund 9 (2002) 326
  • Bulbophyllum fraudulentum Garay, Hamer & Siegerist, Lindleyana 11 (1996) 229
    - Type: Feuilletau de Bruyn 164 (holo BO)
  • Hyalosema fraudulentum (Garay, Hamer & Siegerist) Rysy, J. Orchideenfreund 9 (2002) 332

Rhizome long creeping or climbing. Roots many. Pseudobulbs 2.5 cm apart, ovate, slightly curved, more or less appressed to the rhizome, 2.5-3 by 0.6-0.8 cm at the base, thick; 1-leaved. Leaves thick coriaceous, oblong, obtuse, including the petiole 11.5-5 by 4.5 cm; petiole gradually dilated; apex somewhat bilobed. Inflorescence 1-flowered, straight, as long as the pseudobulb with leaf, with or without one peduncle-scale. Floral bract very small, cucullate. Median sepal oblong, acute, reticulate, 3.5 by 1 cm. Lateral sepals equally long, to the middle connate, dilated, very broad, somewhat narrower, acuminate, reticulate, 3.5 by 1 cm, in front 0.5 cm wide,. Petals very small, lanceolate, 0.2. by hardly 0.1 cm. Lip thick, fleshy, curved, hardly surpassing the petals, 0.2. by hardly 0.1 cm; base cordate, there pilose. Column not described. Pedicel 2.5 cm long. (After Kraenzlin, 1904)


Plant when dried black. Sepals green, densely spotted purplish-red or violet.

Epiphyte in lowland (gallery) forest; 50-550 m.

Malesia (New Guinea).

Papua (Indonesia); Papua New Guinea; see map

Distribution of Bulbophyllum arfakianum in New Guinea

Warm growing epiphyte.

April, September, October, November, December.

  • Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 742
  • Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 245, fig. 931[= B. fraudulentum, fide Garay et al.]
  • Smith, J.J., Nova Guinea 14, 3 (1929) 479, t. 79, fig. 123[B. fraudulentum is based on this description and figure]
  • O'Byrne, P., Lowland Orchid. Papua New Guinea (1994) 440, fig., pl.
  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Dendrobieae
  • Subtribe Bulbophyllinae
  • Genus Bulbophyllum
  • Section Hyalosema
  • Species Bulbophyllum arfakianum

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Bulbophyllum arfakianum

Bulbophyllum arfakianum Kraenzl., flower, lateral view, photo Ed de Vogel, based on Leiden cult. 20120677 (N. & F. Juhonewe) from PNG, Morobe Prov.

Bulbophyllum arfakianum

Bulbophyllum arfakianum Kraenzl., plant habit, photo Ed de Vogel, based on Leiden cult. 20120677 (N. & F. Juhonewe) from PNG, Morobe Prov.

Bulbophyllum arfakianum

Bulbophyllum arfakianum Kraenzl., flower, front view, photo Ed de Vogel, based on Leiden cult. 20120677 (N. & F. Juhonewe) from PNG, Morobe Prov.

Bulbophyllum arfakianum

Bulbophyllum arfakianum Kraenzl., flower, oblique front view, photo Ed de Vogel, based on Leiden cult. 20120677 (N. & F. Juhonewe) from PNG, Morobe Prov.

Bulbophyllum arfakianum

Bulbophyllum arfakianum Kraenzl., flower, oblique lateral view, photo Ed de Vogel, based on Leiden cult. 20120677 (N. & F. Juhonewe) from PNG, Morobe Prov.

Bulbophyllum arfakianum

Bulbophyllum arfakianum Kraenzl., flower, view from above, photo Ed de Vogel, based on Leiden cult. 20120677 (N. & F. Juhonewe) from PNG, Morobe Prov.

Bulbophyllum arfakianum

Bulbophyllum arfakianum Kraenzl., plant with flowers, cult. Jon Cara, photo Jon Cara

Bulbophyllum arfakianum

Bulbophyllum arfakianum Kraenzl., plant detail with flower, cult. Jon Cara, photo Jon Caradetail

Bulbophyllum arfakianum

Bulbophyllum arfakianum Kraenzl., flower, oblique lateral view, cult. Jon Cara, photo Jon Cara

Bulbophyllum arfakianum

Bulbophyllum arfakianum Kraenzl., flower detail, base of flower, oblique lateral view, cult. Jon Cara, photo Jon Cara

Bulbophyllum arfakianum

Bulbophyllum arfakianum, N. Howcroft, drawing, plant habit and flower analysis

Bulbophyllum arfakianum

Bulbophyllum arfakianum Kraenzl., J.J. Vermeulen, sketch, flower analysis, based on Beccari 889 (holo FI)

Bulbophyllum arfakianum

Bulbophyllum arfakianum, P. O'Byrne, drawing

Bulbophyllum arfakianum

Bulbophyllum arfakianum Kraenzl., floral analysis, drawing J.J. Smith, from Feuilletau de Bruyn 164

Bulbophyllum arfakianum

Bulbophyllum arfakianum Kraenzl., floral analysis, R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 245, fig. 931