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Hansen & Rahn | Family List

Gyrostemonaceae Endlicher

habit
woody plants, herbaceous plants

distribution
Australian and Oceanian

leaf: position
alternate

leaf: nature
not compound

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

margin
with entire margin

leaf: stipules
absent, present

inflorescence
solitary, raceme, spike

flower: sexuality
unisexual

flower: symmetry
actinomorphic

flower: receptacle
small, enlarged, totally or partially free from the ovary, enlarged, conical or hemispherical

flower: disc
present

flower: perianth number
0, 2, 3, 4, 5, 6, 7+

flower: perianth nature
perianth of similar segments

flower: sepal number
0, 2, 3, 4, 5, 6+

flower: sepal position
connate

flower: sepal nature
sepals imbricate or contorted, sepals valvate

flower: petal number
0

stamen: number
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 more than 1, free, style 1, or styles more or less connate

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

pistil: ovary
1-locular, 2-locular, 3-locular, 4-locular, 5-locular, 6+ locules

pistil: ovule
1 in each loculus

pistil
carpels free from each other or carpel 1, ovules axile, carpels connate, ovules attached to the central axis or ventrally in apocarpae

fruit: type
a capsule, a nut

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

seed: aril
arillus or arill-like organs present

seed: embryo
curved

seed: endosperm
seeds with endosperm


 

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