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Hansen & Rahn | Family List

Cabombaceae A. Richard

habit
woody plants, herbaceous plants

important diagnostics
aquatic plants, leaves floating or submerged, milky juice present

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

leaf: position
alternate

leaf: nature
not compound, compound, palmately compound

leaf: venation
palmate in leaves or leaflets

margin
with entire margin, lobed or divided

leaf: stipules
absent

inflorescence
solitary

flower: sexuality
bisexual

flower: symmetry
actinomorphic

flower: receptacle
small

flower: disc
absent

flower: perianth number
6

flower: perianth nature
perianth of similar segments, perianth of calyx and corolla

flower: sepal number
0, 3

flower: sepal position
all free from one another

flower: sepal nature
sepals imbricate or contorted

flower: petal number
3, 6

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

stamen: number
3, 4, 5, 6, 7, 8, 9, 10, 11+

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

stamen: filaments
free from the corolla, not connate

pistil: style
styles absent, stigmas sessile, style 1, or styles more or less connate

pistil: carpel
1, 2, 3, 4, 5, 6+

pistil: ovary
1-locular

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

pistil
carpels free from each other or carpel 1

fruit: type
a nut

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

seed: embryo
straight

seed: endosperm
seeds with endosperm


 

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