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Hansen & Rahn | Family List

Apocynaceae A. L. Jussieu

habit
woody plants, herbaceous plants

important diagnostics
milky juice present, spiny stems or leaves

hairs
glandular, stellate, branched

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

leaf: position
opposite or verticillate, alternate

leaf: nature
not compound

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

margin
with entire margin

leaf: epidermis
epidermis of leaf papillose

leaf: stipules
absent, present

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

flower: sexuality
bisexual

flower: symmetry
actinomorphic

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

flower: disc
absent, present

flower: perianth number
7+

flower: perianth nature
perianth of calyx and corolla

flower: sepal number
4, 5

flower: sepal position
all free from one another, connate

flower: sepal nature
sepals imbricate or contorted

flower: petal number
5

flower: petal position
petals connate, petals imbricate

flower: petal nature
petals contorted, petals valvate

flower: corona
present, or scales in the throat

stamen: number
4, 5

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

stamen: filaments
inserted on the corolla, not connate

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

pistil: carpel
2, 3, 4, 5

pistil: ovary
1-locular, 2-locular, 3-locular, 4-locular, 5-locular

pistil: ovule
2 in each loculus, 3+ in each loculus

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

fruit: type
a capsule, fleshy

fruit: seed
2 seeds, 3+ seeds

seed: aril
arillus or arill-like organs present

seed: embryo
straight

seed: endosperm
seeds without endosperm, seeds with endosperm


 

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