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FOC | Family List | FOC Vol. 24 | Juncaceae | Juncus

40. Juncus kingii Rendle, J. Bot. 44: 45. 1906.

金灯心草 jin deng xin cao

Juncus longibracteatus A. M. Lu & Z. Y. Zhang.

Plants perennial, stoloniferous, 15--35 cm tall. Rhizome deeply buried. Stems 1--1.3 mm in diam. Cataphylls 1 or 2. Basal leaf 1; leaf sheath auricles rounded, membranous, strawlike, free portion ca. 0.8 mm; leaf blade terete, 8--15 cm × 1.2--2 mm, apex tapered to a point. Inflorescences terminal; head solitary, subglobose, 1.4--1.9 cm in diam., 8--22-flowered; bracts several, broadly ovate to ovate-lanceolate, vein 1, apex acute; basal bract leaflike, 1.5--4(--7) cm, longer than head; other bracts equaling or slightly longer than head. Perianth segments straw-colored, lanceolate, 4.8--6 × 1.2--1.5 mm, subequal or inner ones slightly longer than outer, membranous. Stamens 6; filaments 6--7 mm; anthers 2--2.5 mm. Style 2--2.5 mm; stigmas 1--2.2 mm. Capsule chestnut brown at maturity, trigonous ellipsoid, 3.2--4 mm, 3-septate, apex beaked; beak 1.2--2 mm. Seeds spindlelike, 0.5--0.8 mm; appendages 2, ca. 0.1 mm. Fl. Jul--Aug, fr. Aug--Sep.

Thickets, meadows, limestone screes, trail sides on slopes; 3600--5000 m. Qinghai, Sichuan, Xizang, Yunnan [Bhutan, Nepal, Sikkim].


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