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Renanthera porphyrodesme

Renanthera porphyrodesme

Renanthera porphyrodesme (Schltr.) Kochyan & Schuit., Phytotaxa 161 (2014) 68

Type: Schlechter 14206 (holo B, lost)


  • Saccolabium porphyrodesme Schltr. in K.Schum. & Lauterb., Nachtr. Fl. Deutsch. Schutzgeb. Südsee (1905) 229
  • Porphyrodesme papuana Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 983

Epiphytic, unbranched, erect or pendent, c. 40 cm long. Stem more or less terete, glabrous, leafy, entirely covered with the tightly clasping leaf-sheaths. Leaves erect-patent, linear-lanceolate, subobtuse, minutely and unequally bilobulate, glabrous, thick-coriaceous, 10-13 cm long, in basal half 1.2-1.6 cm wide. Inflorescence with several branches, only slightly longer than the leaves, laxly many-flowered; peduncle c. 4 cm long, terete, glabrous, branches erect-patent. Floral bracts minute, ovate, acuminate, glabrous, much shorter than the ovary. Flowers usually not resupinate. Sepals oblong, obtuse, 0.2 cm long, glabrous. Lateral sepals somewhat oblique. Petals obliquely elliptic obtuse, subspathulate, a little shorter than the sepals and distinctly narrower. Lip 3-lobed, nearly as long as the sepals, glabrous, lateral lobes erect, semi-square; mid-lobe suborbicular, obtuse; spur subglobose-oblong, towards the mouth somewhat laterally flattened, 0.25 cm long, broadly obtuse. Column rather thick, short; rostellum ascending, notched. Anther rounded, in front subobtuse, acuminate; pollinia globose; stipe narrowly linear, much longer than the pollinia; viscidium as long as the pollinia, obovate, a little broader than the stipe. Ovary very shortly pedicellate, subclavate, glabrous, c. 0.2 cm long.
(After Schlechter, 1905)

Flowers and inflorescence purplish red.

Epiphyte, mainly on exposed (sometimes dead) trees in hilly country; 300 to 667 m.

Malesia (Borneo, New Guinea).

Papua New Guinea. See map

distribution map

Warm growing epiphyte, requires light position.

February, May, September, November.

  • Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 346, fig. 1334
  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Vandeae
  • Subtribe Aeridinae
  • Genus Renanthera
  • Species Renanthera porphyrodesme

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Renanthera porphyrodesme

Renanthera porphyrodesme (Schltr.) Kochyan & Schuit., habit and floral analysis, drawing N.H.S. Howcroft 249, from Wampit (Porphyrodesme papuana Schltr.)

Renanthera porphyrodesme

Renanthera porphyrodesme (Schltr.) Kochyan & Schuit., as Porphyrodesme papuana Schltr., drawing R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 346, fig. 1334