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Hansen & Rahn | Family List

Boraginaceae A. L. Jussieu

habit
woody plants, herbaceous plants

important diagnostics
cystoliths present

hairs
glandular, stellate, stellate, 2-armed or T-shaped, non-glandular, branched

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, lobed or divided

leaf: epidermis
epidermis of leaf papillose

leaf: glands/ligule
with pellucid or glandular dots or lines

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
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

flower: petal nature
petals contorted

flower: corona
present, or scales in the throat

stamen: number
1, 5

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

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, style gynobasic

pistil: carpel
2, 4

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

pistil: ovule
1 in each loculus, 2 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, ovules attached to the base of the ovary

fruit: type
a nut

fruit: seed
1 seed, 3+ seeds

seed: embryo
straight, curved

seed: endosperm
seeds without endosperm, seeds with endosperm


 

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