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FOC | Family List | FOC Vol. 14 | Apiaceae

73. Pachypleurum Ledebour, Fl. Altaic. 1: 296. 1829.

厚棱芹属 hou leng qin shu

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

Arpitium Necker & Sweet.

Herbs, perennial. Taproot stout, usually branched. Stem single or multicipital, usually short, sometimes acaulescent, base densely clothed with fibrous remnant sheaths. Basal leaves 2–3-pinnate or ternate-2–3-pinnate. Umbels compound, terminal sessile, laterals pedunculate; bracts several, lanceolate or linear-lanceolate; rays 5–40; bracteoles lanceolate or linear-lanceolate, entire or 1–2-pinnate. Calyx teeth prominent, triangular or lanceolate. Petals white or purple, oblong-ovate or cordate-ovate, base cuneate or shortly clawed, apex notched with small incurved lobule. Stylopodium conic or subglobose; styles longer than stylopodium. Fruit oblong-ovoid, ovoid or broadly ovoid, dorsally compressed; ribs all winged, subequal; vittae 1(–2) in each furrow, 2(–4) or absent on commissure. Seed face plane.

About six species: Asia, Europe; five species (four endemic) in China.

1 Plants shortly caulescent to acaulescent; bracteoles 2–3-pinnate.   (2)
+ Plants distinctly caulescent, stems erect, ascending; bracteoles lanceolate or linear-lanceolate, entire.   (3)
2 (1) Calyx teeth lanceolate, ca. equaling stylopodium; fruit oblong-ovoid; dorsal ribs adjacent; commissure vittae 2, evident.   1 Pachypleurum nyalamense
+ Calyx teeth linear, several times longer than stylopodium; fruit ovoid; all ribs evenly spaced; commissure vittae absent.   2 Pachypleurum lhasanum
3 (1) Bracteoles lanceolate, margins white membranous; leaves 2-pinnate.   3 Pachypleurum alpinum
+ Bracteoles linear-lanceolate, margins scabrous; leaves ternate-2–3-pinnate.   (4)
4 (3) Plants 10–30 cm; rays 20–40; petals white; fruit broadly ovoid; vittae 1 in each furrow.   4 Pachypleurum xizangense
+ Plants 70–120 cm; rays 5–10; petals purple; fruit oblong-ovoid; vittae 2 in each furrow.   5 Pachypleurum muliense

Lower Taxa


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