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Aristolochiaceae Jussieu

马兜铃科

Aristolochiaceae
Aristolochia grandiflora

Credit: Xiangying Wen

Habit: tree, shrub, herb, liana

Important diagnostics: with gynostemium

Taxon group: dicots

Leaf: position: alternate, basal, cauline, spiral

Leaf: nature: simple

Leaf: venation: pinnate, palmate

Leaf: blade: margin: entire, lobed, cleft, parted or divided

Leaf: stipules: absent

Flowers: inflorescence: solitary, raceme, corymb, cyme

Flowers: sexuality: bisexual

Flowers: symmetry: actinomorphic, zygomorphic

Flowers: perianth nature: perianth of similar segments

Corolla: campanulate, terete, urceolate

Stamen: number: 5, 6, 7, 8, 9, 10+

Stamen: anthers: opening by longitudinal slits, 2-celled

Pistil: style: styles more than 1

Pistil: ovary: 4-loculed, 5-loculed, 6-loculed

Pistil: ovule: 1 per locule, 2 per locule, 3 per locule, 4+ per locule

Pistil: pistil: ovules parietal placentation, ovules attached to the central axis

Ovary: position: half-inferior, inferior

Fruit: types and characters: a capsule (incl. pod, follicle, etc.)

Seed: endosperm: seeds with endosperm

Google Image Search: Link

Dictionary of The Families & Genera of Chinese Seed Plants: Link

Vascular Plant Type Catalog at NYBG: Link


 

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