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Hansen & Rahn | Family List

Casuarinaceae R. Brown

habit
woody plants

hairs
stellate, branched, vescicular or bladder-like

distribution
African, Asian, Australian and Oceanian

leaf: position
opposite or verticillate

leaf: nature
not compound

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

margin
with entire margin

leaf: stipules
absent

inflorescence
spike, head

flower: sexuality
unisexual

flower: symmetry
actinomorphic

flower: receptacle
small

flower: disc
absent

flower: perianth number
0, 2, 3, 4

flower: perianth nature
perianth of similar segments

flower: sepal number
0, 2, 3, 4

flower: sepal position
all free from one another

flower: sepal nature
sepals imbricate or contorted

flower: petal number
0

stamen: number
1

stamen: anthers
basifixed, 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
2

pistil: ovary
1-locular, 2-locular

pistil: ovule
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 base of the ovary

fruit: type
a nut

fruit: seed
1 seed

seed: embryo
straight

seed: endosperm
seeds without endosperm


 

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