狭叶豆蔻 xia ye dou kou

Plants ca. 1.3 m tall. Ligule entire, 2--4 mm; petiole absent on proximal leaves, 5--10 mm on distal ones; leaf blade linear-lanceolate, 13--50 × 1.5--3(--3.5) cm, glabrous, base cuneate, apex long acuminate. Spikes 5--6 × 2.5--4 cm, 10--20-flowered; peduncle 1.5--4.5 cm; bracts elliptic, 2--3.5 × 1--1.5 cm, apex obtuse; bracteoles purple, tubular, ca. 2.5 cm, split on 1 side, apex 2-lobed. Flowers yellow. Calyx purplish red, ca. 3 cm, apex 3-toothed. Corolla tube ca. 1.7 cm; lobes oblong, ca. 3 cm × 8 mm, central one hoodlike, wider than lateral ones. Lateral staminodes ca. 1 mm. Labellum purple lined, obovate, ca. 3.2 × 1.5 cm, papillose toward throat, base adnate to filament forming a tube ca. 3 mm, margin crisped. Filament ca. 5 mm; anther ca. 1.3 cm; connective appendage ca. 5 × 8 mm, margin crenulate. Ovary glabrous. Capsule ellipsoid, 1.7--1.9 × 1.1--1.2 cm, striate. Fl. Apr, fr. Sep--Oct.

* Forests; ca. 1300 m. W Guangxi (Jingxi Xian).