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Plants of Taiwan

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    台灣植物誌 第二版  Flora of Taiwan, 2nd edition    Vol. 3

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    台灣植物誌第二版  Flora of Taiwan, 2nd edition  3: 571

     67. POLYGALACEAE 遠志科
    HUANG, TSENG-CHIENG

    Herbs, sometimes shrubs. Leaves alternate, simple, estipulate. Flowers bisexual, zygomorphic; sepals 5, free, imbricate; petals 3-5, the outer 2 free or connate with the lowest one, the upper 2 free; stamens 4, 5 or 8, monadelphous, connate to above the middle; anthers opening by terminal pores; ovary superior, usually 2-locular; styles simple; ovules usually solitary in each locule. Fruit a capsule.
    About 10 genera, 700 species in tropical to temperate regions; two genera in Taiwan.

    KEY TO GENERA
    1. Sepals 2 large, 3 small; stamens 8; capsules entire on the margin… 1. Polygala
    1. Sepals slightly unequal; stamens 4; capsules spinulate on the margin… 2. Salomonia

    1. POLYGALA L. 遠志屬

    Herbs. Leaves subsessile to petiolate; blades ovate, elliptic to linear. Flowers in racemes, yellow, white or purple; sepals 5, unequal; petals 3, unequal; stamens 8; ovary 2-loculed, with one ovule in each locule. Capsules loculicidally dehiscent, 2-seeded. Seeds ovoid or globose.
    About 450 species, chiefly in temperate region; five species in Taiwan.

    LITERATURE

    Burtt, B. L. 1973. Polygala arvensis, chinensis, and glomerata. Royal Bot. Gard. Edinburgh 32(3): 403-404.
    Huang, T. C. 1993. Plant Taxonomy. Families of Taiwan vascular plants. SM. Pub. Inc. Taipei. F. 4-320, 321.

    KEY TO SPECIES
    1. Racemes terminal.
    2. Leaves petiolate, the blades ovate, 1-2 cm long, 1-1.5 cm wide; flowers pinkish purple… 5. P. tatarinowii
    2. Leaves subsessile, the blades linear, 0.6-1.9 cm long, 1-3 cm wide; flowers white… 4. P. paniculata
    1. Racemes axillary.
    3. Leaf-blades extremely large, 4-9 cm long, 1-3 cm wide… 1. P. arcuata
    3. Leaf-blades small, 1-3.8 cm long, 0.2-0.95 cm wide.
    4. Leaf-blades oblong; flowers sessile; filaments free at upper half portion… 2. P. glomerata
    4. Leaf-blades ovate, elliptic, linear; flowers pedicellate; filaments nearly completely connated… 3. P. japonica

    1. Polygala arcuata Hayata in Journ. Coll. Sci. Univ. Tokyo 25(19): 54. 1908; Huang in Fl. Taiwan 3: 557. 1977. 巨葉花遠志 Pl.293, Photo 36
    A subshrub, up to 30 cm high. Leaves petiolate, the petioles 1-2.5 cm long; blades narrowly elliptic, 4-9 cm long, 1-3 cm wide, acuminate at apex, cuneate at base, veins 4-5 pairs arched toward upper part. Racemes axillary, 4 cm long; pedicels 1 mm long; flowers pinkish purple, 0.5 cm long. Capsules flat,