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Hansen & Rahn | Family List

Achatocarpaceae Heimerl

habit
woody plants

important diagnostics
spiny stems or leaves

distribution
North American, South American

leaf: position
alternate

leaf: nature
not compound

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

margin
with entire margin

leaf: stipules
absent

inflorescence
raceme, compound, sympodial or monopodial

flower: sexuality
unisexual

flower: symmetry
actinomorphic

flower: receptacle
small

flower: disc
absent

flower: perianth number
4, 5

flower: perianth nature
perianth of similar segments

flower: sepal number
4, 5

flower: sepal position
all free from one another

flower: sepal nature
sepals imbricate or contorted

flower: petal number
0

stamen: number
10, 11+

stamen: anthers
basifixed, extrorse, opening by longitudinal slits

stamen: filaments
free from the corolla, not connate

pistil: style
styles absent, stigmas sessile

pistil: carpel
2

pistil: ovary
1-locular

pistil: ovule
1 in each loculus

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

fruit: type
fleshy

fruit: seed
1 seed

seed: embryo
curved

seed: endosperm
seeds with endosperm


 

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