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Hansen & Rahn | Family List

Cyclanthaceae Poiteau ex A. Richard

habit
woody plants, herbaceous plants

important diagnostics
milky juice present

distribution
North American, South American

leaf: position
alternate, distichous

leaf: nature
not compound, compound, palmately compound

leaf: venation
longitudinal in leaves or leaflets, palmate in leaves or leaflets

margin
with entire margin, lobed or divided

leaf: stipules
absent

inflorescence
spike

flower: sexuality
bisexual, unisexual

flower: symmetry
actinomorphic, zygomorphic or irregular

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

flower: disc
absent

flower: perianth number
0, 4

flower: perianth nature
perianth of similar segments

flower: sepal number
0, 4

flower: sepal position
all free from one another, 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, connate into 1 tube or bundle

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

pistil: carpel
4

pistil: ovary
1-locular

pistil: ovule
3+ in each loculus

pistil
ovules parietal, carpels connate, 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 capsule, fleshy

fruit: seed
3+ seeds

seed: embryo
straight, curved

seed: endosperm
seeds with endosperm


 

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