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Hansen & Rahn | Family List

Juncaceae A. L. Jussieu

habit
woody plants, herbaceous plants

important diagnostics
aquatic plants, leaves floating or submerged

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

leaf: position
alternate, distichous

leaf: nature
not compound

leaf: venation
pinnate or hardly visible in leaves or leaflets., invisible or leaves 1-nerved, longitudinal in leaves or leaflets

margin
with entire margin, dentate

leaf: glands/ligule
with a ligule

leaf: stipules
absent

inflorescence
solitary, corymb, head, simple, sympodial, compound, sympodial or monopodial

flower: sexuality
bisexual, unisexual

flower: symmetry
actinomorphic

flower: receptacle
small

flower: disc
absent

flower: perianth number
3, 6

flower: perianth nature
perianth of similar segments

flower: sepal number
3, 6+

flower: sepal position
all free from one another

flower: sepal nature
sepals imbricate or contorted

flower: petal number
0

stamen: number
3, 6

stamen: anthers
basifixed, introrse, opening by longitudinal slits

stamen: filaments
free from the corolla, not connate

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

pistil: carpel
3

pistil: ovary
1-locular, 3-locular

pistil: ovule
1 in each loculus, 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 base of the ovary

fruit: type
a capsule

fruit: seed
3+ seeds

seed: aril
arillus or arill-like organs present

seed: embryo
straight

seed: endosperm
seeds with endosperm


 

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