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Habenaria rumphii

Habenaria rumphii

Habenaria rumphii (Brongn.) Lindl., Gen. Sp. Orchid. Pl. (1835) 320

Synonyms:

  • Platanthera rumphii Brongn. in Duperrey, Voy. Monde, Bot. (1829) 104, t. 38, f. A
    - Type: D'Urville s.n. (holo P)
  • Habenaria stauroglossa Kraenzl. in K.Schum. & Hollr., Fl. Kais. Wilh. Land (1889) 35
    - Type: Hollrung 319 (holo B, lost)
  • Habenaria holtzei F.Muell., J. Roy. Soc. N. S. Wales 24 (1890) (1801) 128
    - Type: Holtze s.n. (Arnheim's Land) (holo MEL)
  • Habenaria dahliana Kraenzl., Orchid. Gen. Sp. 1 (1898) 466
    - Type: Dahl s.n. (Kaiser Wilhelmsland, Ralum) (holo B, lost)
  • Habenaria rumphii (Brongn.) Lindl. var. meraukensis J.J.Sm., Bull. Dép. Agric. Indes Néerl. 22 (1909) 6
    - Type: Branderhorst 301 (holo BO)
  • Habenaria rumphii (Brongn.) Lindl. var. javanica J.J.Sm., Bull. Jard. Bot. Buitenzorg, sér. 2, 14 (1914) 12
    - Type: Backer 5779 (iso L 2x); 6217

Basionym: Platanthera rumphii

Tuber oblongoid. Stem erect, 10-25 cm long, 3-4-leaved, at the base with 2-3 tubular sheaths. Leaf sheaths 2-6 cm long, tubular. Leaves erect-patent, lanceolate-linear, narrowed to the base, 9-17 by 0.9-1.1 cm, apex gradually acuminate, tip acute. Inflorescence racemose, erect; peduncle 24-32 cm long, peduncle-scales 3-6, lanceolate-linear to subulate, setaceous-acuminate, to 5.5 cm long, the lower ones sheathing, the upper ones becoming smaller; rachis 5-8 cm long, densely many-flowered. Floral bracts erect, subulate, 2 by 0.23 cm, apex long setaceous-acuminate, concave, keeled, 1-nerved. Ovary 1.35 cm long, beaked, the beak 0.3 cm long. Flowers 1.7 cm long. Median sepal erect, ovate, 0.45 by 0.23 cm, concave, 3-nerved, apex obtuse. Lateral sepals reflexed, falcate-ovate, 0.55 by 0.24 cm, 3-nerved, apex obtuse. Petals erect, falcate-oblong, narrowed to the apex, 0.45 by 0.15 cm, 2-nerved, apex obtuse. Lip 3-lobed, spurred, concave at the base; lateral lobes patent, subulate, 0.18 cm long, much narrower than the mid-lobe, rather obtuse; mid-lobe sublinear, narrowed to the apex, 0.53 cm long, at the base a little more than 0.1 cm wide, rather obtuse; spur pendent, clavate, 1.25 cm long, obtuse. Column erect, 0.2 cm long, stigmatophores appressed to the lip, carnose, obtuse, slightly longer than the anther channels; mid-lobe of the rostellum low, obtuse. Anther channels short. (After Smith, 1909, as Habenaria rumphii var. meraukensis J.J.Sm.).

Note: Normally, Habenaria rumphii has longer lateral lobes to the lip than here described for var. meraukensis. This variety is otherwise identical with H. rumphii, and we consider it to be just a local form.


Flowers white or rose red to purple.

Terrestrial in grassland at low elevations.

Peninsular Malaysia, Sumatra, Java, Borneo, Celebes, Moluccas, New Guinea, Philippines, Thailand, Laos, Cambodia, Vietnam, Australia.

Papua (Indonesia); Papua New Guinea. See map

distribution in New Guinea

Warm growing terrestrial, requires light position and a rather mineral soil.

February.

  • Family Orchidaceae
  • Subfamily Orchidoideae
  • Tribe Orchideae
  • Subtribe Orchidinae
  • Genus Habenaria
  • Section Acuiferae
  • Species Habenaria rumphii
  • Smith, J.J., Nova Guinea 8, 1 (1909) 135, t. 45, fig. 150, as Habenaria rumphii (Brongn.) Lindl. var. meraukensis J.J.Sm.
  • Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 1 (1911) 13
  • Smith, J.J., Bull. Jard. Bot. Buitenzorg, sr. 3, 5 (1922) t. 20, fig. III, as Habenaria rumphii (Brongn.) Lindl. var. javanica J.J.Sm.
  • Schlechter, R., Repert. Spec. Nov. Regni Veg. Beih. 21 (1923) t. 5, fig. 17
  • Dockrill, A. W., Austral. Indig. Orchids 1 (1969) 26, fig., as Habenaria holtzei F.Muell.

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Habenaria rumphii

overview picture

Habenaria rumphii

Habenaria rumphii (Brongn.) Lindl., inflorescence, photo P. O'Byrne, from Sulawesi

Habenaria rumphii

Habenaria rumphii (Brongn.) Lindl., drawing N.H.S. Howcroft 223, from Wipim

Habenaria rumphii

Habenaria rumphii (Brongn.) Lindl. var. meraukensis J.J.Sm., drawing J.J. Smith, from Branderhorst 301

Habenaria rumphii

Habenaria rumphii (Brongn.) Lindl., from Repert. Spec. Nov. Regni Veg. Beih. 21 (1923) t. 5, fig. 17

Habenaria rumphii

Habenaria rumphii (Brongn.) Lindl. var. meraukensis J.J.Sm., herbarium sheet, Branderhorst 301, isosyntype specimen (BO)

Habenaria rumphii

Habenaria rumphii (Brongn.) Lindl. var. meraukensis J.J.Sm., herbarium sheet, Branderhorst 301, holotype specimen (BO)