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

Cornaceae

Cornaceae

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