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Hansen & Rahn | Family List

Corylaceae Mirbel

habit
woody plants

hairs
glandular, peltate or scale-like

distribution
African, Asian, European, North American, South American

leaf: position
alternate

leaf: nature
not compound

leaf: venation
pinnate or hardly visible in leaves or leaflets.

margin
dentate

leaf: stipules
present

inflorescence
spike, compound, sympodial or monopodial

flower: sexuality
unisexual

flower: symmetry
actinomorphic

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

flower: disc
absent

flower: perianth number
1, 2, 3, 4, 5, 6, 7+

flower: perianth nature
perianth of similar segments

flower: sepal number
1, 2, 3, 4, 5, 6+

flower: sepal position
connate

flower: sepal nature
sepals imbricate or contorted, sepals valvate

stamen: number
4, 8, 10, 11+

stamen: anthers
basifixed, introrse, extrorse, opening by longitudinal slits, 1-locular at anthesis

stamen: filaments
free from the corolla, not connate, connate into separate bundles

pistil: style
styles absent, stigmas sessile, styles more than 1, free

pistil: carpel
2

pistil: ovary
1-locular, 2-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, ovules attached to the apex of the ovary

fruit: type
a nut

fruit: seed
1 seed

seed: embryo
straight

seed: endosperm
seeds without endosperm


 

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