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Hansen & Rahn | Family List

Gentianaceae A. L. Jussieu

habit
woody plants, herbaceous plants

important diagnostics
chlorophyll absent

hairs
glandular

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

leaf: position
opposite or verticillate

leaf: nature
not compound

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

margin
with entire margin

leaf: epidermis
epidermis of leaf papillose

leaf: stipules
absent

inflorescence
solitary, simple, sympodial

flower: sexuality
bisexual, unisexual

flower: symmetry
actinomorphic, zygomorphic or irregular

flower: receptacle
small

flower: disc
absent, present

flower: perianth number
7+

flower: perianth nature
perianth of calyx and corolla

flower: sepal number
2, 3, 4, 5, 6+

flower: sepal position
all free from one another, connate

flower: sepal nature
sepals imbricate or contorted

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

flower: petal position
petals connate, petals imbricate

flower: petal nature
petals contorted

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

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

stamen: filaments
inserted on the corolla, not connate

stamen: other characters
anthers with a conspicuous appendage, staminodia present

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

pistil: carpel
2

pistil: ovary
1-locular, 2-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 with endosperm


 

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