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Hansen & Rahn | Family List

Hamamelidaceae R. Brown

habit
woody plants

hairs
stellate, stellate, tufted, non-glandular

distribution
African, Asian, North American

leaf: position
opposite or verticillate, alternate

leaf: nature
not 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: stipules
present

inflorescence
raceme, spike, head

flower: sexuality
bisexual, unisexual

flower: symmetry
actinomorphic

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

flower: disc
absent, present

flower: perianth number
0, 4, 5, 6, 7+

flower: perianth nature
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

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

flower: petal nature
petals valvate

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

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

stamen: filaments
free from the corolla, not connate

stamen: other characters
staminodia present

pistil: style
styles more than 1, free

pistil: carpel
2

pistil: ovary
2-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

fruit: type
a capsule

fruit: seed
2 seeds, 3+ seeds

seed: embryo
straight

seed: endosperm
seeds with endosperm


 

Related Objects  

A Checklist for the South China Botanical Garden, Guangzhou, Guangdong Province, P. R. China  
  • Hamamelis sp. (Xiangying Wen)
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    Flora of China  
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    Interactive Keys by Xiangying Wen  
  • Corylopsis sinensis (Xiangying Wen)
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  • Hamamelis mollis (Xiangying Wen)
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  • Hamamelis sp. (Xiangying Wen)
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  • Liquidambar styraciflua (Xiangying Wen)
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