Twoleaf Hoodshaped Orchid

  • Scientific Name: Ponerorchis cucullata
  • Ref: (L.) X.H.Jin, Schuit. & W.T.Jin, Molec. Phylogen. Evol. 77: 51, 2014.
  • English Common Name: Twoleaf hoodshaped orchid
  • Chinese Common Name: 二叶兜被兰 èryè dōubèilán
  • Family: Orchidaceae
  • Genus: Ponerorchis
  • Distribution: Forests, thickets, grassy slopes, alpine grasslands; 400-4500 m. Anhui, N Fujian, Gansu, NE Guizhou, Hebei, Heilongjiang, Henan, W Hubei, Jiangxi, Jilin, Liaoning, Nei Mongol, Qinghai, Shaanxi, Shanxi, Sichuan, Xizang, NW Yunnan, Zhejiang [Bhutan, N India, Japan, Korea, Mongolia, Nepal, Russia; E Europe].
Plants (4-)8-24 cm tall. Tubers subglobose to ovoid, 8-15 mm. Stem erect or ascending, with 1 or 2 tubular sheaths at base, (1 or)2-leaved. Leaves basal, subopposite, dark green, adaxially often with purple spots, ovate, elliptic, oblanceolate-spatulate, or narrowly oblong, 2.2-9 × (0.5-)1-3 cm, apex acute to obtuse. Peduncle ebracteate or with 1-4 sterile bracts; rachis 1.5-8 cm, laxly to subdensely 4-22-flowered; floral bracts lanceolate, 5-12 mm, lower ones exceeding ovary, apex acuminate. Flowers often secund, rose-pink to deep purple; ovary and pedicel slightly arcuate, 5-7 mm. Sepals connivent and forming a hood; hood 5-8 × 3-5 mm; dorsal sepal oblong-lanceolate to lanceolate, (4-)5-7 × 1.5-2.7 mm, 1-veined, apex acute; lateral sepals lanceolate, oblique, 5-8 × 1.5-2.8 mm, 1-veined, apex acute to acuminate. Petals appressed to dorsal sepal, linear-lanceolate, 4-7 × 0.5-1.2 mm, 1-veined, apex acute to acuminate; lip spreading, narrowly oblong, 5-10 × 1.8-3 mm, base cuneate, 3-lobed near middle; lateral lobes linear-lanceolate, 2-6 × 0.3-0.5 mm, 1-veined, apex acute; mid-lobe linear-lanceolate, 4-8 × 1-2 mm, 3-veined, apex obtuse; spur pendulous, straight to strongly curved forward, cylindric-conic, 4-6 mm, ca. 1 mm in diam. at base, apex obtuse. Fl. Jul-Oct. (Flora of China)

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