Abstract
Herbs, sometimes shrublets or shrubs, occasionally with succulent stems, sometimes geophytic. Leaves alternate or opposite, mostly palmately or pinnately lobed or compound, lobes deeply serrate or lobulate; stipules present or (Hypseocharis) absent. Inflorescences pseudoumbellate, or flowers solitary. Flowers perfect, actinomorphic or zygomorphic, pentamerous; sepals free or united at base, imbricate with valvate tips, persistent; petals 5 (4, 2 or 0), free, imbricate; stamens 5 or 10 and 15, then in two whorls, sometimes a few sterile, filaments free or more or less connate at base; gynoecium of 5(4) carpels; style with 5 stigmatic branches (unbranched with capitate stigma in Hypseocharis); ovary 5-lobed, with 1-2(-12)pendulous, anatropous ovules in each locule; placentation axile. Fruits schizocarps with five 1-seeded awned mericarps which separate elastically from a central beak (rostrum), or (Hypseocharis) with five 1-few-seeded mericarps not connected by a central column or loculicidal capsules; seeds with a more or less curved embryo with green cotyledons or (Hypseocharis) with a cochlear embryo with spirally folded cotyledons; endosperm absent or scanty.
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Albers, F., Van der Walt, J.J.A. (2007). Geraniaceae. In: Kubitzki, K. (eds) Flowering Plants · Eudicots. The Families and Genera of Vascular Plants, vol 9. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-32219-1_19
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DOI: https://doi.org/10.1007/978-3-540-32219-1_19
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