Species Information - Phaius robertsii

Phaius robertsii F. Muell., S. Sci. Res. 3 (1883) 263

Type: Layard s.n. (New Caledonia) (holo MEL)

Synonyms:

• Phaius monticola Guillaumin, Nohil. Syst. (Paris) 10: 71 (1941). Type : New Caledonia , Koghis, Le Rat 2742 (holo. P)
• Phaius pictus T.E.Hunt, Victorian Naturalist 69 (1952) 27
  - Type: Wilkie (Hunt) 513 (Australia, Queensland, Cook Distr., Bellenden Ker Ra.) (holo BRI)

Stem erect, stout, to 21 by 0.4 cm. Stem erect, at the base the internodes largely covered by tubular leaf sheaths without developed leaf blade. Leaves apical on the stem, 4- 6, suberect,, lanceolate-elliptic; sheaths tubular; blade shortly petiolate 9- 30 by 2- 6.5 cm, with acuminate apex. Inflorescence axillary, from the upper third of the stem, 2-6-flowered, to 30 cm long. Flowers 4.5 cm across. Pedicel and ovary curved, 2.3 cm long. Median sepal 2.4 by 5 cm, oblong-lanceolate; apex acuminate. Lateral sepals 2.4 by 0.6 cm, oblong-lanceolate; apex, acuminate. Petals 2.4 by 0.4 cm, lanceolate; apex acute. Lip shallowly 3-lobed, 18 by 16 mm; hypochile with lateral lobes not entirely enveloping the column, oblong; their base adnate to the column for c. 0.3 cm, inside hairy, with a very short, conical, 0.16 m long spur; epichile oblong, in front rounded, with shortly apiculate apex, upper surface densely pubescent but median only between the keels; margins undulate, keels at the base 2, fleshy, ridge-like, straight. somewhat apart, near the apex with 2 short verrucose. Column 1.4 cm long, in front near the base densely pubescent, its apex hood-like, erose; anther 0.2 cm across, densely long papillose
(after Stone & Cribb, 2017)

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