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Trichotosia atroferruginea

Trichotosia atroferruginea

Trichotosia atroferruginea (Schltr.) P.F.Hunt, Kew Bull. 24 (1970) 92


  • Eria atroferruginea Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1912) 675
    - Type: Schlechter 19604 (holo B, lost; iso L)

Basionym: Eria atroferruginea

Epiphytic, patent, up to 100 cm long. Rhizome very short, roots filiform, elongated, flexuose, minutely puberulous. Stems unbranched, elongated, terete, leafy, 0.7cm diam., with the leaf-sheaths only at the base villose, otherwise glabrous, closely appressed, entirely covering the stem. Leaves erectligulate, unequally and obtusely bilobulate, glabrous, 15cm long, near the middle 23.3 cm wide, glabrous, coriaceous. Inflorescences lateral, curved-pendent, rather laxly 10flowered, very densely villose, carrying flowers to near the base, to 13 cm long. Floral bracts recurved, elliptic, obtuse, as long as the flowers or somewhat shorter. Flowers outside densely villose. Sepals ovate-oblong, apiculate, inside glabrous, 1 cm long. Lateral sepals oblique, at the base along the anterior margins lobed; mentum oblongoid, obtuse c. 0.5 cm long. Petals obliquely linearligulate, obtuse, with sparsely ciliate margins, otherwise glabrous. Lip in outline long cuneate, 1.1 cm long, near the apex 0.6 cm wide, at the base oblongligulate, near the middle 3-lobed, inside below the middle with two linearminutely papillosecalli, from the middle to near the apex with a median, linear, minutely papillosepuberulous callus; lateral lobes minute, tooth-like; mid-lobe subreniform, notched, with an obtuse apicule. Column short, column-foot ligulate; clinandrium lobes subcrenulate, short, the dorsal one triangular and somewhat longer. Anther reniformapiculate, glabrous. Ovary sessile, villose, 0.6 cm long. (After Schlechter, 1911-1914)

Hairs very dark rust-brown. Flowers brown-red, petals and lip brownish white.

Epiphyte in lower montane forest; 1200 m.

Malesia (New Guinea).

Papua New Guinea. See map

distribution map

Intermediate growing epiphyte.


  • Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 225, fig. 852, as Eria atroferruginea Schltr.
  • Family Orchidaceae
  • Subfamily Epidendroideae
  • Tribe Podochileae
  • Subtribe Eriinae
  • Genus Trichotosia
  • Species Trichotosia atroferruginea

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Trichotosia atroferruginea

overview picture

Trichotosia atroferruginea

Eria atroferruginea Schltr., drawing R. Schlechter in Repert. Spec. Nov. Regni Veg. Beih. 21 (1928) t. 225, fig. 852

Trichotosia atroferruginea

Eria atroferruginea Schltr., herbarium sheet, Schlechter 19604 (isotype specimen L)