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Hansen & Rahn | Family List

Bromeliaceae A. L. Jussieu

habit
herbaceous plants

important diagnostics
spiny stems or leaves

hairs
stellate, peltate or scale-like

distribution
African, 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: stipules
absent

inflorescence
solitary, raceme, spike, head, 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, enlarged, totally or partially free from the ovary

flower: disc
absent

flower: perianth number
6

flower: perianth nature
perianth of calyx and corolla

flower: sepal number
0, 3

flower: sepal position
all free from one another, connate

flower: sepal nature
sepals imbricate or contorted

flower: petal number
3, 6

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

flower: petal nature
petals contorted

flower: corona
present, or scales in the throat

stamen: number
6

stamen: anthers
dorsifixed or ventrifixed, basifixed, introrse, opening by longitudinal slits

stamen: filaments
free from the corolla, inserted on the corolla, not connate

stamen: other characters
anthers with a conspicuous appendage

pistil: style
style 1, or styles more or less connate

pistil: carpel
3

pistil: ovary
3-locular

pistil: ovule
3+ in each loculus

pistil
ovules axile, carpels connate, ovules attached to the central axis or ventrally in apocarpae, ovules attached to the apex of the ovary, ovules attached to the base of the ovary

fruit: type
a capsule, fleshy

fruit: seed
3+ seeds

seed: embryo
straight

seed: endosperm
seeds with endosperm


 

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