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Flora of Taiwan | Family List | Primulaceae | Lysimachia

Lysimachia fortunei Maxim., Bull. Acad. Sci. St. Petersb. 12: 68. 1868; Kao & DeVol, Fl. Taiwan 4: 77. pl. 920. 1978; Chen et al., Fl. Reip. Pop. Sin. 59(1): 104. 1989; Hu & Kelso, Fl. China 15: 71. 1996.


Lysimachia fortunei

Credit: HAST

An erect perennial herb; stolons creeping; stems terete, with small black spots, 30-60 cm high, simple or with few branches above. Leaves subopposite or alternate, elliptical or lanceolate, 4-7 cm long, 1-2 cm wide, the apex acute or obtuse, entire, sessile or subsessile. Racemes terminal, densely many-flowered, 10-20 cm long, glabrous or minutely glandular hairy, the pedicels short, about 3 mm long; the bracts acicular 3-5 mm long. Flowers white, 5-6 mm across; calyx 5-parted, segments ovate-oblong, acute or obtuse, membraneous and ciliate at margine, with black glandular dots, ca. 2 mm long; corolla-lobes oblong, rounded, obtuse, ca. 3-5 mm long; stamens 5, inserted on the petals, filaments short, ca. 0.5 mm long; anthers broadovate, ca. 0.6 mm long; ovary globose, style ca. 1 mm long. Capsules globose, 2-2.5 mm in diameter, style persistent. Flowers: May-Jul.

TAIPEI: Linkou, Peng 8585; Pinghsi, Wang 1377. ILAN: Taipingshan, Suzuki s. n. 1925. TAOYUAN: Yangmei, Kuo 11119; Taoyuan, Suzuki 4638. HSINCHU: Lienhuashih, Peng 7231; Hukou, Peng 7244. NANTOU: Sun Moon Lake, Kudo & Sasaki 15399.

Distributed inJapan, Korea, the Ryukyus, Indo-China, and SE China. Taiwan, in wet places by rivers and ponds in lowlands, in northern part of the island.

Phenology: perennial

Life form: herb

Root: rooting at node or not: not rooting at node

Stem: present

Stem: type: erect

Stem: shape: terete

Stem: indumentum: glabrous

Leaf: position: cauline

Phyllotaxy: opposite

Leaf: petiole: sessile

Leaf: blade shape: elliptic, lanceolante

Leaf: blade apex: acute

Leaf: blade base: attenuate

Leaf: blade margin: entire

Leaf: blade surface: glabrous

Leaf: blade texture: herbaceous

Leaf: blade length (mm): 40-70

Leaf: blade width (mm): 10-20

Inflorescence: raceme

Inflorescence: position: terminal

Scape: absent

Peduncle: length (mm): 1.2-3

Bract: present

Bract: length (mm): 2-5

Bract: width (mm): 0

Calyx: shape: 5-parted

Sepal: shape: ovate, oblong

Sepal: margin: ciliolate

Sepal: length (mm): 1.2-1.8

Sepal: width (mm): 0.8-1.3

Corolla: color: white

Corolla: shape: rotate

Lobe: margin: entire

Lobe: length (mm): 2-5

Lobe: width (mm): 1-1.5

Filament fused into a ring or not: filament free

Filament inserted position: base of corolla lobe

Filament: indumentum: glabrous

Filament and anther relative length: filament obviously longer than anther

Stamens protruding from corolla or not: Stamens protuding from corolla

Capsule: dehiscence type: longitudinal

Distribution: wet places by rivers and ponds


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