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Hansen & Rahn | Family List

Iridaceae A. L. Jussieu

habit
woody plants, herbaceous plants

important diagnostics
bulb present

distribution
African, Asian, Australian and Oceanian, European, North American, South American

leaf: position
opposite or verticillate, alternate, distichous, ensiform

leaf: nature
not compound

leaf: venation
longitudinal in leaves or leaflets

margin
with entire margin

leaf: stipules
absent

inflorescence
solitary, spike, simple, sympodial, compound, sympodial or monopodial

flower: sexuality
bisexual

flower: symmetry
actinomorphic, zygomorphic or irregular

flower: receptacle
small, enlarged, completely united with the ovary, totally or partially covering it

flower: disc
absent

flower: perianth number
3, 6

flower: perianth nature
perianth of similar segments

flower: sepal number
0

flower: petal number
3, 6

flower: petal position
all free from one another, petals connate, petals imbricate

flower: corona
present, or scales in the throat

stamen: number
3

stamen: anthers
basifixed, introrse, extrorse, opening by longitudinal slits

stamen: filaments
free from the corolla, not connate, connate into 1 tube or bundle

pistil: style
style 1, or styles more or less connate

pistil: carpel
3

pistil: ovary
1-locular, 3-locular

pistil: ovule
1 in each loculus, 2 in each loculus, 3+ in each loculus

pistil
ovules axile, carpels connate, ovules attached to the central axis or ventrally in apocarpae

fruit: type
a capsule

fruit: seed
1 seed, 2 seeds, 3+ seeds

seed: aril
arillus or arill-like organs present

seed: embryo
straight

seed: endosperm
seeds with endosperm


 

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