Species Information - Trachoma papuanum

Trachoma papuanum (Schltr.) M.A.Clem., J.J.Wood & D.L.Jones, Austral. Orchid Res. 1 (1989) 145

Type: Schlechter 17962; 19120 (B, lost)

Synonyms:

• Saccolabium papuanum Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 978
• Parapteroceras papuanum (Schltr.) Szlach., Ann. Bot. Fennici 40 (2003) 67
• Tuberolabium papuanum (Schltr.) J.J.Wood ex B.A.Lewis & P.J.Cribb, Orchids Vanuatu (1989) 150
• Sarcochilus societatis J.Moore, Bernice P. Bishop Mus. Bull. 102 (1933) 24
  - Type: Moore 411 (holo BISH; iso BISH)
• Trachoma societatis (J.Moore) N.Hallé, Orchidophile 40 (1980) 1481
• Saccolabium subluteum Rupp, N. Queensland Naturalist 21, 105 (1953) (1)
  - Type: Cairns cult. (Goessling-St. Cloud) s.n. (Australia, Q., Daraqdgee, Johnstone R.) (not found by *
• Trachoma subluteum (Rupp) Garay, Bot. Mus. Leafl. 1 (1972) 23, 4 (1972) 208

Basionym: Saccolabium papuanum

Epiphytic, very small; roots filiform, glabrous. Stem short, to 3 cm long, densely leafy, covered with the leaf-sheaths. Leaves patent, ligulate, obtuse, gradually somewhat narrowed towards the base, 3-6 cm long, at or above the middle 0.8-1 cm wide. Inflorescence very short, gradually few-flowered; peduncle and rachis very short, somewhat fleshy. Floral bracts very small, deltoid, acute, much shorter than the subsessile ovary. Flowers glabrous, opening in succession. Sepals oblong, obtuse, 0.55 cm long. Lateral sepals subapiculate, oblique. Petals obliquely oblong-ligulate, obtuse, somewhat narrowed towards the base, almost as long as the sepals. Lip in outline oblong, a little shorter than the sepals, near the centre longitudinally deeply grooved; lateral lobes hardly developed, apex fleshy, obtuse, outside slightly conical-elongated; spur oblongoid, obtuse, turned upwards. Column short, rather thick; rostellum short, bidentate. Anther reniform-cucullate; pollinia globose; stipe linear, almost twice as long as the pollinia, in the middle slightly dilated; viscidium suborbicular, very small. Ovary cylindrical, subsessile, glabrous, c. 0.5 cm long. (After Schlechter, 1911-1914)

---