IUCN Red List of Threatened Species https://www.iucnredlist.org/species/43320135/43327799
Bougainville only; 1100–1850 m altitude.
Bougainville only; 1100-1850 m altitude.
A terrestrial herb. Leaves 6-7, narrowly elliptic, obtuse and minutely tricuspidate at apex, 14-22 cm long, 2.5-4.2 cm wide, pale green, faintly lined and mottled dark green, margins erose towards apex. Inflorescence one-flowered; peduncle 10-23 cm long, pale green, purple-pubescent on outside; petals white, veined with green, purple-flushed on apical margins; lip and staminode green with darker veins; pedicel and ovary 4 cm long, green, purple-pubescent. Dorsal sepal ovate, acuminate or acute, 3.2-3.8 cm long, 3.2-4 cm wide; synsepalum concave, ovate, acute, 2.5-2.7 cm long, 1.7 cm wide. Petals falcate, narrowly elliptic, obtuse, 4.5-5 cm long, 1.5-2 cm wide, ciliolate. Lip narrowing towards apex, 4-5 cm long, 1.8-2.6 cm wide. Staminode lunate, 8-10 mm long, 12-14 mm wide, minutely pubescent.
A terrestrial herb. Leaves 5–7, narrowly elliptic, obtuse and minutely tricuspidate at apex, 14–22 cm long, 2.5–4.2 cm wide, pale green faintly lined and mottled dark green, margins erose towards apex. Inflorescence 1-flowered; peduncle 10–23 cm long, pale green, purple- and whitepubescent; bract elliptic, rounded, 2–2.6 cm long, pale green, pubescent. Flower c. 5 cm across; sepals white with green veins, purple-pubescent on outside; petals white, veined with green, purple-flushed on apical margins; lip and staminode green with darker veins; pedicel and ovary 4 cm long, green, purplepubescent. Dorsal sepal ovate, acuminate or acute, 3.2–3.8 cm long, 3.2–4 cm wide. Synsepal concave, ovate, acute, 2.5–2.7 cm long, 1.7 cm wide. Petals falcate, narrowly elliptic, obtuse, 4.5–5 cm long, 1.5–2 cm wide, ciliolate. Lip narrowing towards apex, 4–5 cm long, 1.8–2.6 cm wide. Staminode lunate, 8–10 mm long, 12–14 mm wide, minutely pubescent. 2n = 40.
