All Floras      Advanced Search
Login | eFloras Home | Help
Hansen & Rahn | Family List

Butomaceae Richard

habit
herbaceous plants

important diagnostics
aquatic plants, leaves floating or submerged, milky juice present

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

leaf: position
alternate

leaf: nature
not compound

leaf: venation
longitudinal in leaves or leaflets

margin
with entire margin

leaf: stipules
absent

inflorescence
solitary, umbel

flower: sexuality
bisexual

flower: symmetry
actinomorphic

flower: receptacle
small

flower: disc
absent

flower: perianth number
3, 6

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

flower: sepal number
0, 3

flower: sepal position
all free from one another

flower: sepal nature
sepals imbricate or contorted

flower: petal number
0, 3, 6

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

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

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

stamen: filaments
free from the corolla, not connate

stamen: other characters
staminodia present

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

pistil: carpel
3, 6+

pistil: ovary
1-locular

pistil: ovule
3+ in each loculus

pistil
carpels free from each other or carpel 1

fruit: type
a capsule

fruit: seed
3+ seeds

seed: embryo
straight, curved

seed: endosperm
seeds without endosperm


 

Related Objects  

Flora of China  
  • Butomaceae (PDF)
  • PDF

     |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |