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Hansen & Rahn | Family List

Petrosaviaceae Hutchinson

habit
herbaceous plants

distribution
Asian

leaf: position
alternate

leaf: nature
not compound

leaf: venation
pinnate or hardly visible in leaves or leaflets., invisible or leaves 1-nerved

margin
with entire margin

leaf: stipules
absent

inflorescence
raceme, corymb

flower: sexuality
bisexual

flower: symmetry
actinomorphic

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

flower: disc
absent

flower: perianth number
3, 6

flower: perianth nature
perianth of calyx and corolla

flower: sepal number
3, 6+

flower: sepal position
all free from one another

flower: sepal nature
sepals imbricate or contorted, sepals valvate

flower: petal number
0, 3

flower: petal position
petals imbricate

flower: petal nature
petals valvate

stamen: number
6

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

stamen: filaments
not connate

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

pistil: carpel
3

pistil: ovary
1-locular, 3-locular

pistil: ovule
3+ in each loculus

pistil
carpels free from each other or carpel 1, ovules axile, carpels connate, ovules attached to the central axis or ventrally in apocarpae

fruit: type
a capsule

fruit: seed
3+ seeds

seed: embryo
straight

seed: endosperm
seeds with endosperm


 

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