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Hansen & Rahn | Family List

Eucommiaceae Engler

habit
woody plants

important diagnostics
milky juice present

distribution
Asian

leaf: position
alternate

leaf: nature
not compound

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

margin
dentate

leaf: stipules
absent

inflorescence
solitary, raceme, spike, head

flower: sexuality
unisexual

flower: symmetry
actinomorphic

flower: receptacle
small

flower: disc
absent

flower: perianth number
0

flower: sepal number
0

flower: petal number
0

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

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

stamen: filaments
free from the corolla, not connate

pistil: style
styles absent, stigmas sessile

pistil: carpel
2

pistil: ovary
1-locular, 2-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

fruit: type
a nut

fruit: seed
1 seed

seed: embryo
straight

seed: endosperm
seeds with endosperm


 

Related Objects  

A Checklist for the South China Botanical Garden, Guangzhou, Guangdong Province, P. R. China  
  • Eucommia ulmoides (Xiangying Wen)
  • Image/JPEG
    Flora of China  
  • PDF
  • PDF
    Interactive Keys by Xiangying Wen  
  • Eucommia ulmoides (Xiangying Wen)
  • Image/JPEG

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