The New Refugium Botanicum. Chaubardiella pacuarensis

Abstract

Chaubardiella pacuarensisJenny, Orchideen (Hamburg) 40:91. 1989. Type: Costa Rica. [Turrialba]: road by Río Pacuare near Turrialba, R. Jenny3 (holotype, G). Epiphytic, caespitose herbs to 25 cm tall. Roots thick, about 2 mm in diameter. Stem completely hidden by the imbricating sheaths. Sheaths strongly conduplicate, the basal ones provided with scarious margins, to 2 cm long, the upper one foliaceous. Leaves 3–5, the conduplicate base 1.5–2.0 cm long, the blade elliptic-oblanceolate, acuminate, strongly carinate abaxially, 10– 21 x 1.2–2.8 cm, dark green. Inflorescence basal, 1–3 per shoot, unifloral, peduncle to 4 cm long, provided with 2–3 triangular, acute bracts. Floral bracts in pairs, the outer one infundibular, broadly ovate, acute, to 8 × 7 mm, the inner lanceolateelliptic, 10 × 3–4 mm. Ovary and pedicel terete-subclavate, to 5 mm long. Flower nonresupinate, pendent, translucent white to greenish cream.