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Dimorphorchis breviscapa

Dimorphorchis breviscapa

Dimorphorchis breviscapa (J.J.Sm.) Kochyan & Schuit., Phytotaxa 161 (2014) 64

Type: Hewitt s,n. (Oct. 1908) Sarawak Quop. Holo B; iso K)

Synonyms:

  • Arachnis breviscapa (J.J.Sm.) J.J.Sm. -- Natuurk. Tijdschr. Ned.-Indië 72(1): 74. 1912
  • Arachnanthe breviscapa J.J.Sm., Bull. Dép. Agric. Indes Néerl. 22 (1909) 48
  • Arachnis breviscapa (J.J.Sm.) J.J.Sm., Natuurk. Tijdschr. Ned.-Indië 72(1912) 74
  • Vandopsis breviscapa (J.J.Sm.) Schltr., Repert. Spec. Nov. Regni Veg. 10 (1911) 195
  • Stauropsis breviscapa (J.J.Sm.) Rolfe, Gard. Bull. Straits Settlem. 2 (1918) 46
  • Vandopsis celebica Schltr., Repert. Spec. Nov. Regni Veg. 10 (1911) 195,
    - Type: Schlechter 20633 (holo B, lost)
  • Arachnis celebica (Schltr.) J.J.Sm., Natuurk. Tijdschr. Ned.-Indië 72 (1912) 74
  • Vandopsis longicaulis Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 973
    - Type: Schlechter 18420 (holo B, lost; iso BO, E, K, L, MO, NSW)
  • Arachnis longicaulis (Schltr.) L.O.Williams, Bot. Mus. Leafl. 5 (1937) 31
  • Dimorphorchis longicaulis (Schltr.) Ormerod, Malesian Orchid J. 12 35 (2013)
  • Arachnis lyonii Ames, Orchidaceae 5 (1915) 221
    - Type: Lyon 126 (holo AMES; iso AMES 2x)
  • Dimorphorchis lyonii (Ames) Ormerod, Malesian Orchid J. 12 (2013) 37
  • Dimorphorchis celebica (Schltr.) Ormerod, Malesian Orchid J. 12 (2013) 35
  • Arachnis longicaulis f. flavescens Valmayor & D.Tiu in H.L.Valmayor, Orchid. Philipp. A-V(3) (1983)16.
    - Type: Valmayor & Tiu 103 (holo CAHP)
  • Dimorphorchis lyonii f. flavescens (Valmayor & D.Tiu) Ormerod, Malesian Orchid J. 12 (2013) 37

Basionym: Vandopsis longicaulis

Epiphytic, pendent, up to 2 m long. Roots flexuose, glabrous. Stem unbranched, many-leaved, covered with tightly clasping rugulose sheaths, 1 cm diam. Leaves patent, oblong-ligulate, obtusely and unequally bilobed, 16-20 cm long, near the middle 3-4 cm wide. Racemes pendent, laxly several-flowered, as long as the leaves or a little shorter, peduncle short, with a few scales. Floral bracts oblongoid-cucullate, obtuse, slightly recurved, much shorter than the ovary. Flowers c. 4-7, patent, glabrous. Sepals broadly elliptic, obtuse, towards the base spathulate-narrowed, c. 3 cm long. Lateral sepals oblique. Petals similar to the sepals but a little smaller. Lip small, cucullate, 1.4 cm long, lateral lobes semiquadrate, broadly obtuse, mid-lobe lanceolate, acuminate, incurved, inside with raised thickened keels. Column thick, short; pollinia obliquely rhombic; stipe oblong, acuminate; viscidium triangular-transverse, in front rounded. Ovary cylindrical, glabrous, 2 cm long. (After Schlechter, 1911-1914, as Vandopsis longicaulis Schltr.).


Flower whitish with large red-brown blotches, lip in the apical part violet-pink, column violet-pink with white anther.

Epiphyte in lowland forest. Altitude 150-750 m.

Malesia (New Guinea, The Philippines).

Papua New Guinea. See map

distribution in New Guinea

Warm growing epiphyte.

January, October.

  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Vandeae
  • Subtribe Aeridinae
  • Genus Dimorphorchis
  • Species Dimorphorchis breviscapa
  • Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 343, fig. 1322, as Vandopsis longicaulis Schltr.

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Dimorphorchis breviscapa

overview picture

Dimorphorchis breviscapa

Dimorphorchis breviscapa (J.J.Sm.) Kochyan & Schuit., habit, photo N.E.G. Cruttwell, based on Cruttwell (11/83, PNG, Bulolo)

Dimorphorchis breviscapa

Dimorphorchis breviscapa (J.J.Sm.) Kochyan & Schuit., flower, photo N.E.G. Cruttwell, based on Cruttwell (1/79, PNG, Bulolo)

Dimorphorchis breviscapa

Dimorphorchis breviscapa (J.J.Sm.) Kochyan & Schuit., drawing N.H.S. Howcroft 410 (as Arachnis longicaulis (Schltr.) L.O.Williams)

Dimorphorchis breviscapa

Dimorphorchis breviscapa (J.J.Sm.) Kochyan & Schuit., drawing N.H.S. Howcroft 33, from Bulolo (as Arachnis longicaulis (Schltr.) L.O.Williams)

Dimorphorchis breviscapa

Dimorphorchis breviscapa (J.J.Sm.) Kochyan & Schuit., from Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 343, fig. 1322 (as Vandopsis longicaulis Schltr.)

Dimorphorchis breviscapa

Dimorphorchis breviscapa (J.J.Sm.) Kochyan & Schuit., herbarium sheet, Schlechter 18420, isotype specimen (L) (as Arachnis longicaulis (Schltr.) L.O.Williams)

Dimorphorchis breviscapa

Dimorphorchis breviscapa (J.J.Sm.) Kochyan & Schuit., herbarium sheet, Schlechter 18420, isotype specimen (BO) (as Vandopsis longicaulis Schltr.)