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68. Cnidium Cusson, Mém. Soc. Méd. Emul. Paris. 280. 1782.

蛇床属 she chuang shu

Pu Fading (溥发鼎 Pu Fa-ting); Mark F. Watson

Herbs, perennial or biennial, rarely annual. Stems usually solitary, sometimes several, branches slender. Basal and lower leaves 2–3-pinnate or 1–2-pinnate; ultimate segments obovate, linear-lanceolate or linear. Upper leaves reduced, smaller, sessile on expanded sheaths. Umbels compound, terminal and lateral; bracts several, usually persistent, linear to lanceolate, rarely caducous; rays 6–15(–20); bracteoles several, linear. Calyx teeth usually obsolete, occasionally minute. Petals white or pinkish, base cuneate, apex notched, with narrow incurved lobule. Stylopodium conic or low-conic; styles longer than stylopodium, reflexed after flowering. Fruit oblong-ovoid or subglobose, slightly compressed dorsally; ribs 5, narrowly corky-winged, lateral ribs a little broader than the others, or ribs subequal; vittae 1 in each furrow, 2 on commissure. Seed face plane, rarely slightly concave. Carpophore 2-parted.

Six to eight species: Asia, Europe; five species (one endemic) in China.

The following species have been described from Chinese material, but are imperfectly known as no specimens have been seen or the specimens are inadequate.

Cnidium affine H. Wolff (Repert. Spec. Nov. Regni Veg. Beih. 12: 451. 1922, not C. A. Meyer, 1849), described from Jilin (“Hsiau Wutai Shan” [Xiaowutai Shan], W. Limpricht 545, holotype, ?B).

Cnidium limprichtii H. Wolff (Repert. Spec. Nov. Regni Veg. Beih. 12: 451. 1922; Tilingia limprichtii (H. Wolff) Leute), described from Shanxi (“Yimaling to Lingtsiu,” 1600 m, W. Limpricht 637, holotype, ?B).

Cnidium warburgii H. Wolff (Repert. Spec. Nov. Regni Veg. 19: 310. 1924), described from C and S Taiwan (O. Warburg 9792 & 10686, syntypes, unlocalized).

1 Bracteoles oblong or oblong-ovate, broadly white membranous-margined; fruit oblong-ovoid, 3–5 × 2–3 mm.   1 Cnidium dauricum
+ Bracteoles linear, narrowly or hardly membranous-margined; fruit ovoid, oblong-ovoid or subglobose, 1.5–3.5 × 1–3.5 mm.   (2)
2 (1) Fruit subglobose, 2–3.5 × 2–3.5 mm; stems several; leaves 1–2-pinnate.   2 Cnidium japonicum
+ Fruit ovoid or oblong-ovoid, 1.5–3 × 1–2 mm; stem solitary; leaves 2–3-pinnate.   (3)
3 (2) Bracts persistent; bracteole margin very finely ciliate.   3 Cnidium monnieri
+ Bracts caducous; bracteole margin slightly scabrous, without cilia.   (4)
4 (3) Ultimate leaf segments linear-lanceolate or falcate, 5–30 × 1.5–3 mm.   4 Cnidium salinum
+ Ultimate leaf segments linear, 4–15 × 0.5–1 mm.   5 Cnidium sinchianum

Lower Taxa


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