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FOC | Family List | FOC Vol. 15 | Primulaceae

1. Lysimachia Linnaeus, Sp. Pl. 1: 146. 1753.

珍珠菜属 zhen zhu cai shu

Herbs erect or procumbent, rarely suffruticose, glabrous or pubescent, often with internal glands appearing as pustulate dots or stripes. Leaves alternate, opposite, or whorled, usually entire. Flowers solitary in axils of upper leaves or in terminal and axillary panicles or racemes, often shortened into capitate clusters, with bracts. Calyx usually 5(or rarely 6--9)-parted. Corolla white or yellow, rarely pink, homomorphic, rarely heteromorphic, subrotate or campanulate, deeply 5(or rarely 6--9)-parted; lobes contorted in bud. Filaments free or connate into a ring or tube at base and ± adnate to corolla tube; anthers basifixed, dorsifixed or versatile opening by apical pores or by lateral slits. Capsule subglobose, usually dehiscing by valves, rarely indehiscent.

Approximately 180 species in temperate and subtropical parts of the northern hemisphere, but with a few species in Africa, Australia, and South America; 138 species occur in China.

List of Keys

1 Flowers usually 6- or 7-merous, in pedunculate, dense capitate, or spikelike racemes   138 Lysimachia thyrsiflora
+ Flowers 5-merous, in terminal racemes, or inflorescences not racemose.   (2)
2 (1) Flowers heteromorphic, with anthers and stigma at 2 levels; corolla tubular, parted scarcely to middle   137 Lysimachia crispidens
+ Flowers homomorphic; corolla rotate or campanulate, parted below middle.   (3)
3 (2) Corolla white to pink; filaments free, adnate to middle of corolla   See Link for Key 3 below in List of Keys
+ Corolla yellow, rarely white; filaments connate into a thin ring or tube, adnate to base of corolla tube.   (4)
4 (3) Anthers large, longer than filaments, distinctly basifixed, usually opening by apical pores, occasionally by lateral slits; plants not colored glandular punctate or striate   See Link for Key 1 below in List of Keys
+ Anthers small, shorter than filaments, ± dorsifixed, rarely indistinctly so, to versatile, opening by lateral slits (except L.albescens); plants often colored glandular punctate or striate   See Link for Key 2 below in List of Keys

List of Keys

  • List of lower taxa


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