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Hansen & Rahn | Family List

Euphorbiaceae A. L. Jussieu

habit
woody plants, herbaceous plants

important diagnostics
milky juice present, spiny stems or leaves, cladodes or phyllodes

hairs
glandular, stellate, stellate, 2-armed or T-shaped, non-glandular, branched, tufted, non-glandular, peltate or scale-like, stinging

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

leaf: position
opposite or verticillate, alternate

leaf: nature
not compound, compound, pinnately compound, ternately compound, palmately compound

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

margin
with entire margin, lobed or divided, dentate

leaf: epidermis
epidermis of leaf papillose

leaf: glands/ligule
with pellucid or glandular dots or lines

leaf: stipules
absent, present

inflorescence
raceme, spike, fascicle, head, simple, sympodial, compound, sympodial or monopodial

flower: sexuality
unisexual

flower: symmetry
actinomorphic, zygomorphic or irregular

flower: receptacle
small, enlarged, totally or partially free from the ovary, enlarged, conical or hemispherical

flower: disc
absent, present

flower: perianth number
0, 1, 2, 3, 4, 5, 6, 7+

flower: perianth nature
perianth of similar segments, perianth of calyx and corolla

flower: sepal number
0, 1, 2, 3, 4, 5, 6+

flower: sepal position
all free from one another, connate

flower: sepal nature
sepals imbricate or contorted, sepals valvate

flower: petal number
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11+

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

flower: petal nature
petals contorted, petals valvate

stamen: number
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11+

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

stamen: anthers
basifixed, introrse, extrorse, opening by longitudinal slits, opening by apical pores

stamen: filaments
free from the corolla, not connate, connate into 1 tube or bundle

pistil: gynophore
present

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

pistil: carpel
2, 3, 4, 6+

pistil: ovary
2-locular, 3-locular, 4-locular, 6+ locules

pistil: ovule
1 in each loculus, 2 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

fruit: type
a capsule, fleshy

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

seed: aril
arillus or arill-like organs present

seed: embryo
straight

seed: endosperm
seeds with endosperm


 

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