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Hansen & Rahn | Family List

Gesneriaceae Dumortier

habit
woody plants, herbaceous plants

hairs
glandular, peltate or scale-like

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

inflorescence
solitary, raceme, umbel, head, simple, sympodial

flower: sexuality
bisexual

flower: symmetry
actinomorphic, zygomorphic or irregular

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

flower: disc
present

flower: perianth number
7+

flower: perianth nature
perianth of calyx and corolla

flower: sepal number
5

flower: sepal position
all free from one another, connate

flower: sepal nature
sepals imbricate or contorted, sepals valvate

flower: petal number
5

flower: petal position
petals connate, petals imbricate

stamen: number
2, 4, 5

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

stamen: filaments
inserted on the corolla, not connate, connate into 1 tube or bundle

stamen: other characters
staminodia present

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

pistil: carpel
2

pistil: ovary
1-locular, 2-locular, 4-locular

pistil: ovule
3+ in each loculus

pistil
ovules parietal, carpels connate, ovules axile, carpels connate, ovules attached to the central axis or ventrally in apocarpae

fruit: type
a capsule, fleshy

fruit: seed
3+ seeds

seed: embryo
straight

seed: endosperm
seeds without endosperm, seeds with endosperm


 

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