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Floral development, asterids part I
Today’s lecture
• GUEST LECTURE – Floral development – Class exercise
• Cornaceae • Polemoniaceae
Class exercise – review: land plants
Soltis et al., 2011
Monocots
ANITA grade
Magnoliids
Ranunculaceae
Caryophyllales
Saxifragales
Rosids
Asterids
Angiosperm phylogeny
�Basal eudicots�
Asterids Rosids
Eudicots (Tricolpates)
Angiosperm phylogeny
Lamiids
Asterids
Campanulids
Cornales Cornaceae
Ericales Ericaceae Polemoniaceae
Asterids
Core asterids
Tenuinucellate ovules Unitegmic ovules
Iridoid compounds
13 genera; 130 species (Cornus) Habit: Leaves:
Cornaceae
woody
Simple Opposite
Malpighiaceous hairs Spiral thickenings in veins
Cornus unalaschkensis Western bunchberry
Cornaceae
Cornaceae
Symmetry: Perianth parts: Stamens: Pistils: Ovary position: Fruit type:
radial
4 sepals, 4 petals
Cornaceae
Symmetry: Perianth parts: Stamens: Pistils: Ovary position: Fruit type:
radial
4 sepals, 4 petals
4 (or 8)
1 compound pistil (2-3 carpels)
Inferior
Drupe (or multiple fruit)
Cornaceae
Lamiids
Asterids
Campanulids
Cornales Cornaceae
Ericales Ericaceae Polemoniaceae
Asterids
Core asterids
Tenuinucellate ovules Unitegmic ovules
Iridoid compounds
Polemoniaceae
Textbook DVD KRR & DLN
Ryan Miller
Collomia grandiflora large-flowered mountain-trumpet
Ipomopsis aggregata scarlet gilia
Polemoniaceae
18 genera; 380 species
Habit: Leaves:
Polemoniaceae
Herbaceous, sometimes slightly woody
Simple to compound Variously arranged
Polemoniaceae
Symmetry: Perianth parts: Stamens: Pistils: Ovary position: Fruit type:
radial
5 sepals, 5 petals connate
5, adnate to corolla unequal insertion
1 compound pistil (3 carpels; 3-lobed stigma)
superior
capsule