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Hansen & Rahn | Family List

Celastraceae R. Brown

habit
woody plants

important diagnostics
milky juice present, spiny stems or leaves

hairs
stellate, 2-armed or T-shaped, non-glandular

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

leaf: stipules
absent, present

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

flower: sexuality
bisexual, unisexual

flower: symmetry
actinomorphic

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, present

flower: perianth number
4, 5, 7+

flower: perianth nature
perianth of similar segments, 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, sepals valvate

flower: petal number
0, 4, 5

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

flower: petal nature
petals valvate

stamen: number
4, 5, 6, 7, 8, 9, 10

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

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

pistil: style
styles absent, stigmas sessile, 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
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 apex of the ovary, ovules attached to the base of the ovary

fruit: type
a capsule, a nut, 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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