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Hansen & Rahn | Family List

Droseraceae Salisbury

habit
herbaceous plants

important diagnostics
aquatic plants, leaves floating or submerged

hairs
glandular, stellate

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, simple, sympodial

flower: sexuality
bisexual

flower: symmetry
actinomorphic

flower: receptacle
small

flower: disc
absent

flower: perianth number
7+

flower: perianth nature
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

flower: petal number
4, 5

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

stamen: number
4, 5, 10, 11+

stamen: anthers
basifixed, extrorse, opening by longitudinal slits

stamen: filaments
free from the corolla, not connate, connate into 1 tube or bundle

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

pistil: carpel
2, 3, 4, 5

pistil: ovary
1-locular

pistil: ovule
3+ in each loculus

pistil
ovules parietal, carpels connate, ovules attached to the base of the ovary

fruit: type
a capsule

fruit: seed
3+ seeds

seed: embryo
straight

seed: endosperm
seeds with endosperm


 

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