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Hansen & Rahn | Family List

Agavaceae Endlicher

habit
woody plants, herbaceous plants

important diagnostics
spiny stems or leaves

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

leaf: position
alternate

leaf: nature
not compound

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

margin
with entire margin, lobed or divided, dentate

leaf: stipules
absent

inflorescence
raceme, spike, compound, sympodial or monopodial

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
6

flower: perianth nature
perianth of similar segments

flower: sepal number
0

flower: petal number
6

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

stamen: number
6

stamen: symmetry
the same number as and opposite the petals or alternate with the sepals

stamen: anthers
basifixed, introrse, opening by longitudinal slits

stamen: filaments
inserted on the corolla, not connate

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

pistil: carpel
3

pistil: ovary
1-locular, 3-locular

pistil: ovule
1 in each loculus, 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 capsule, fleshy

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

seed: embryo
straight

seed: endosperm
seeds with endosperm


 

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