Abstract
Perennial rosulate herbs or diminutive winter annuals, glabrous or young petiole bases puberulent, with conspicuous tannin sacs in epidermis. Leaves alternate or subopposite, spathulate, ovate, reniform, or orbicular, entire, exstipulate, all petiolate or cauline leaf(s) appearing sessile. Flowers solitary on scapes or on lateral shoots, hermaphrodite, 5-merous, weakly zygomorphic; sepals (4)5(−7), persistent; petals (0,4)5(−7), minute or showy; stamens 5, antesepalous, anthers longitudinally dehiscent, introrse or extrorse and individually dehiscent above stigmas; staminodes antepetalous, glandular, dilated distally; ovary superior to half-inferior, 3–4(5)-carpellate, placentation axile or parietal; ovules horizontal, numerous, bitegmic or unitegmic; style terminal, short or obsolete; style branches or stylodia distinct; stigmas commissural. Fruit a membranous capsule, loculicidally dehiscent at apex. Seeds numerous, cylindrical or oblong, minute, blackish or testa transparent and embryo opaque, endosperm a single cell layer or 0.
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Simmons, M.P. (2004). Parnassiaceae. In: Kubitzki, K. (eds) Flowering Plants · Dicotyledons. The Families and Genera of Vascular Plants, vol 6. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-07257-8_33
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DOI: https://doi.org/10.1007/978-3-662-07257-8_33
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