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FOC | Family List | FOC Vol. 25 | Orchidaceae | Neottia

25. Neottia wardii (Rolfe) Szlachetko, Fragm. Florist. Geobot., suppl. 3: 119. 1995.

大花对叶兰 da hua dui ye lan

Listera wardii Rolfe, Notes Roy. Bot. Gard. Edinburgh 8: 127. 1913; L. grandiflora Rolfe; Neottia grandiflora (Rolfe) Szlachetko (1995), not Hooker (1830), nor (A. Richard) Kuntze (1891), nor Schlechter (1912).

Plants autotrophic, 15-25 cm tall. Rhizome with a few elongate, filiform roots. Stem cylindric, slender, with 1 membranous sheath toward base. Leaves 2, opposite, borne above middle of plant, subsessile, green, broadly ovate or ovate-cordate, 2.5-4 × 2.5-4.2 cm, base broadly cuneate or shallowly cordate, margin slightly crisped or sometimes irregularly denticulate, apex subacute or mucronate. Peduncle 3.5-5 cm, pubescent, with 1 or 2 sterile, ovate bracts to ca. 8 mm; rachis 3-7 cm, pubescent, laxly 2-7-flowered; floral bracts ovate-lanceolate, 5-7 mm, apex acute to acuminate. Flowers rather large, resupinate, green or greenish yellow, lip with a thin white margin; pedicel 5-6 mm, almost glabrous; ovary narrowly conic, ca. 6 mm, glabrous; sepals and petals spreading widely. Dorsal sepal rhombic-elliptic or elliptic, 6-7 × ca. 2.2 mm, 1-veined, apex subacute; lateral sepals elliptic-lanceolate, oblique, 6-7 × ca. 2 mm, apex acute. Petals linear, 6-7 × ca. 1 mm, apex acuminate; lip spreading forward, obovate-cuneate, 16-19 × 7-13 mm, much narrower at base, apex deeply 2-lobed; lobes divergent or sometimes almost parallel, subovate, 5-6 × 4-6 mm, margins minutely papillose-ciliate, apices obtuse-rounded; disk with 2 longitudinal lamellae connected to base of column, midvein slightly thickened. Column arcuate above middle, ca. 7 mm; anther inclined toward rostellum; rostellum large, nearly as long as anther. Fl. Jun-Jul.

● Damp places in scrub and coniferous forests; 2300-3500 m. W Hubei, N and W Sichuan, SE Xizang, NW Yunnan.


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