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Monocot Plants | Family List

Orchidaceae A. L. Jussieu

Orchidaceae
Orchidaceae sp.

Credit: Hong Song

Habit
Terrestrial, Lianas or vines, Pseudostem from leaf bases, Epiphytes, Saprophytes (lack chlorophyll), Perennials

Roots
Rhizomes, Corms, Roots aerial (adventitious), Roots velamen, Sap clear

Stems
elongate, contracted, rounded, solid, swollen pseudobulbs

Leaves
Leaves - sheathing at base, Leaves - sheath open, Leaves - simple, Leaves - cauline, Leaves - basal (rosette), Leaves - alternate, Leaves - whorled, Leaves - 2-ranked (distichous), Leaves - spiral, Leaves - linear or filiform (grass-like), Leaves - venetion parallel, Leaves - dense and fibrous, Leaves - soft, Leaves - succulent, Leaves - margins entire

Inflorescence
lateral or axillary, flowers solitary, cymes, racemes, spikes, panicles, umbels, Flowers pedicellate

Flowers
Flowers bisexual, Perianth present, Flowers small, Flowers large and showy, Flowers 3 merous, Flowers resupinate (180 degree twist), Flowers zygomorphic, Floral bracteoles present

Sepals/Tepals
Tepals 6 (Sepals indistinguishable from petals), Sepals colored (not green), Sepals separate, Sepals united

Petals/Tepals
Petals 3, Petals 6, Petals united into tube, Petals mostly separate, Petals white (to pinkish), Petals yellow, Petals greenish, Petals blue to purple, Petals orange to red, Petals brownish

Stamens
Stamens 1, Stamens 2, Stamens united with style in a column, Pollen in large waxy pollinia

Pistil
Carpels united, Carpels 3, Ovary inferior, Styles 1, Stigma terminal capitate or trilobed, Stigma lateral, Locules 1, Placentation parietal

Fruit
Fruit - capsule

Seeds
Seeds - numerous per locule, Seeds - minute dust-like


 

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