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Hansen & Rahn | Family List

Ehretiaceae C. Martius ex Lindley

habit
woody plants, herbaceous plants

important diagnostics
spiny stems or leaves, cystoliths present

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

distribution
African, Asian, Australian and Oceanian, 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, lobed or divided, dentate

leaf: epidermis
epidermis of leaf papillose

leaf: stipules
absent

inflorescence
solitary, spike, corymb, head, simple, sympodial, compound, sympodial or monopodial

flower: sexuality
bisexual

flower: symmetry
actinomorphic

flower: receptacle
small

flower: disc
present

flower: perianth number
6, 7+

flower: perianth nature
perianth of calyx and corolla

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

flower: sepal position
connate

flower: sepal nature
sepals imbricate or contorted, sepals valvate

flower: petal number
4, 5, 6

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, 6

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

stamen: filaments
inserted on the corolla, not connate

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

pistil: carpel
2

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

pistil: ovule
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, ovules attached to the base of the ovary

fruit: type
a nut, fleshy

fruit: seed
2 seeds, 3+ seeds

seed: embryo
straight

seed: cotyledons
folded or crumpled

seed: endosperm
seeds without endosperm, seeds with endosperm


 

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