展苞灯心草Juncus thomsonii Buchen.
展苞灯心草Juncus thomsonii Buchen.
40. 展苞灯心草（中国高等植物图鉴）
Juncus thomsonii Buchen. in Bot. Zeit. 25: 148. 1867; N. E. Brown in Journ. Linn. Sco. Bot. 36: 166. 1903; Buchen. in Engl. , Pflanzenr. 25 (IV. 36) : 224. 1906; Satake in Journ. Jap. Bot. 43: 382. 1968 et in Ohashi, Fl. E. Himal. 3: 131. 1975; 中国高等植物图鉴5: 412. 图7654. 1976. ——J. leucomelas auct. non Royle: Hook. f., Fl. Btir. Ind. 6: 397. 1894, p. p.
《Flora of China》 Vol. 24 (2000)
Juncus thomsonii Buchenau
展苞灯心草 zhan bao deng xin cao
Juncus thomsonii var. fulvus K. F. Wu.
Plants perennial, tufted in tussocks, (5--)10--20(--30) cm tall. Rhizome short. Stems terete, 0.6--1 mm in diam. Leaves all sub-basal, usually 2; leaf sheath reddish brown, margin scarious, auricles acute, membranous, free portion ca. 0.5 mm; leaf blade linear, 1--10 cm, apex with a callus. Inflorescences terminal; head solitary, 5--10 mm in diam., 2--8-flowered; bracts 3 or 4, spreading, ovate-lanceolate, 3--8 × 1--3 mm, shorter than head, apex obtuse. Perianth segments yellowish white, straw-colored, or chestnut brown, oblong-lanceolate, 4.5--5 × 1.2--1.6 mm, equal or inner ones slightly shorter than outer, apex obtuse. Stamens 6; filaments 4.3--6 mm; anthers linear, 1.6--2 mm. Style short; stigmas 1.1--2.2 mm. Capsule reddish brown to dark brown when mature, trigonous ellipsoid, 4--5 mm, 3-septate, apex beaked; beak 0.5--1.5 mm. Seeds oblong, 0.7--1 mm; appendages 2, whitish, 0.8--1 mm. Fl. Jul--Aug, fr. Aug--Sep.
Wet places in forests, swamps, pond margins, alpine meadows; 2800--5000 m. Gansu, Qinghai, Shaanxi, Sichuan, Xizang, Yunnan [Bhutan, Nepal, Pakistan, Sikkim; C Asia].
别名：青藏灯芯草;展苞灯芯草;殿苞灯心草;
科名：灯心草科 Juncaceae
属名：灯心草属 Juncus
40. 展苞灯心草（中国高等植物图鉴）
Juncus thomsonii Buchen. in Bot. Zeit. 25: 148. 1867; N. E. Brown in Journ. Linn. Sco. Bot. 36: 166. 1903; Buchen. in Engl. , Pflanzenr. 25 (IV. 36) : 224. 1906; Satake in Journ. Jap. Bot. 43: 382. 1968 et in Ohashi, Fl. E. Himal. 3: 131. 1975; 中国高等植物图鉴5: 412. 图7654. 1976. ——J. leucomelas auct. non Royle: Hook. f., Fl. Btir. Ind. 6: 397. 1894, p. p.
《Flora of China》 Vol. 24 (2000)
Juncus thomsonii Buchenau
展苞灯心草 zhan bao deng xin cao
Juncus thomsonii var. fulvus K. F. Wu.
Plants perennial, tufted in tussocks, (5--)10--20(--30) cm tall. Rhizome short. Stems terete, 0.6--1 mm in diam. Leaves all sub-basal, usually 2; leaf sheath reddish brown, margin scarious, auricles acute, membranous, free portion ca. 0.5 mm; leaf blade linear, 1--10 cm, apex with a callus. Inflorescences terminal; head solitary, 5--10 mm in diam., 2--8-flowered; bracts 3 or 4, spreading, ovate-lanceolate, 3--8 × 1--3 mm, shorter than head, apex obtuse. Perianth segments yellowish white, straw-colored, or chestnut brown, oblong-lanceolate, 4.5--5 × 1.2--1.6 mm, equal or inner ones slightly shorter than outer, apex obtuse. Stamens 6; filaments 4.3--6 mm; anthers linear, 1.6--2 mm. Style short; stigmas 1.1--2.2 mm. Capsule reddish brown to dark brown when mature, trigonous ellipsoid, 4--5 mm, 3-septate, apex beaked; beak 0.5--1.5 mm. Seeds oblong, 0.7--1 mm; appendages 2, whitish, 0.8--1 mm. Fl. Jul--Aug, fr. Aug--Sep.
Wet places in forests, swamps, pond margins, alpine meadows; 2800--5000 m. Gansu, Qinghai, Shaanxi, Sichuan, Xizang, Yunnan [Bhutan, Nepal, Pakistan, Sikkim; C Asia].