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Dioscoreaceae R. Brown

Habit: Terrestrial, Herbaceous, Woody, Trees or shrubs, Lianas or vines, Perennials

Roots: Rhizomes, Tubers, Sap clear

Stems: elongate, rounded, solid, swollen pseudobulbs

Leaves: Leaves - petiolate, Leaves - simple, Leaves - compound, Leaves - cauline, Leaves - basal (rosette), Leaves - alternate, Leaves - opposite, Leaves - whorled, Leaves - spiral, Leaves - blade broad, Leaves - venetion parallel, Leaves - venetion reticulate, Leaves - venetion pinnate-parallel, Leaves - venetion palmate, Leaves - soft, Leaves - margins entire

Inflorescence: terminal, lateral or axillary, scapose, cymes, racemes, spikes, panicles, umbels, Flowers pedicellate

Flowers: Flowers unisexual, Plants dioecious, Flowers bisexual, Perianth present, Flowers small, Flowers large and showy, Flowers 3 merous, Flowers actinomorphic, Floral bracteoles present

Sepals/Tepals: Tepals 6 (Sepals indistinguishable from petals), Sepals separate

Petals/Tepals: Petals 6, Petals basally united, Petals mostly separate, Petals white (to pinkish), Petals yellow, Petals greenish, Petals brownish

Stamens: Stamens 6 (3+3)

Pistil: Carpels united, Carpels 3, Ovary inferior, Styles 1, Styles 3 or 3-branched, Stigma terminal capitate or trilobed, Locules 3, Placentation axile, Placentation parietal

Fruit: Fruit - capsule, Fruit - berry, Fruit - winged

Seeds: Seeds - few (2-10) per locule, Seeds - numerous per locule, Seeds - keeled or winged, Seeds - surface +/- smooth, Seeds - surface rough or ribbed, Seeds - round or ellipsoid, Seeds - compressed or flattened


 

Related Objects  

Flora of China  
  • Dioscorea alata
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  • PDF File
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