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Habenaria dryadum

Habenaria dryadum

Habenaria dryadum Schltr., Repert. Spec. Nov. Regni Veg. 3 (1906) 80

Type: Schlechter 14175 (holo B, lost)

Synonyms:

  • Habenaria epiphylla Schltr. in K.Schum. & Lauterb., Nachtr. Fl. Deutsch. Schutzgeb. Südsee (1905) 78 nom. illeg., non Rchb.f. & Wrm.
  • Habenaria dryadum Schltr. var. major Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1911) 15

Roots swollen, fusiform. Stem erect, stout, straight, 50-80 cm long, with 6-10 leaves, arranged in a rosette about halfway the stem, lower half of the stem covered with cucullate cataphylls clasping the stem, upper half covered with short-lived, lanceolate, aristulate sheaths. Leaves lanceolate, 12-20 by 3-4 cm, apex acuminate, with a bristle-like mucro. Inflorescence racemose; rachis 10-15 cm long, densely many-flowered. Floral bracts lanceolate, apex aristate-acuminate, a little longer or a little shorter than the ovary. Pedicel with ovary 2 cm long, fusiform. Flowers resupinate, c. 2 cm across. Dorsal sepal ovate, lanceolate, 1 cm by 4 mm, concave, apex acuminate. Lateral sepals deflexed, obliquely ovate-lanceolate, 1.2 cm long, apex gradually narrowing to the acuminate apex. Petals bilobed, posterior lobe erect, narrowly linear-falcate, exceeding than the median sepal, 1.2 cm long, acute, anterior lobe filiform, ascending, 1.8 cm long, flexuose. Lip 3-lobed, spurred; lateral lobes filiform, 2 cm long, flexuose; midlobe narrowly linear, 1.7 cm long, subacute; spur cylindric, 2.3 cm long, slightly widened in apical half. Stigmatophores longer than the anther channels. Anther channels short. (After Schlechter, 1905, as Habenaria epiphylla Schltr.).


Flower greenish.

Terrestrial in rain forest near stream or in light shrubby forest. Altitude 400-500 m.

Malesia (New Guinea, endemic).

Papua (Indonesia); Papua New Guinea. See map

distribution in New Guinea

Warm growing terrestrial, keep in shade.

February, March, June.

  • Family Orchidaceae
  • Subfamily Orchidoideae
  • Tribe Orchideae
  • Subtribe Orchidinae
  • Genus Habenaria
  • Section Salaccenses
  • Species Habenaria dryadum
  • Smith, J.J., Nova Guinea 12, 1 (1913) 4
  • Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1923) t. 6, fig. 22
  • Schuiteman, A. & J.F. Wanma. New and noteworthy Orchid Species from the Arfak Mountains, West Papua Province, Indonesia. Malesian Orchid Journal 20 (2017) 87, fig. 26

Habenaria dryadum is remarkably similar to Habenaria multicaudatum Sedgw. from South India


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Habenaria dryadum

Habenaria dryadum Schltr., flower, photo André Schuiteman, from Arfak Mts., Schuiteman 2014-49

Habenaria dryadum

overview picture

Habenaria dryadum

Habenaria dryadum Schltr., drawing N.H.S. Howcroft 108, from Bulolo

Habenaria dryadum

Habenaria dryadum Schltr., drawing J.J. Smith, from Versteeg 1678

Habenaria dryadum

Habenaria dryadum Schltr., drawing J.J. Smith, from Gjellerup 453

Habenaria dryadum

Habenaria dryadum Schltr., drawing J.J. Smith, from Versteeg 1678

Habenaria dryadum

Habenaria dryadum Schltr., from Repert. Spec. Nov. Regni Veg. Beih. 21 (1923) t. 6, fig. 22