Lab quiz 1 on Friday –Mosses, pteridophytes and conifers

OBE seminars today

12:10 (SB 117)Marnie Rout

4:10 (ISB 110)Lila Fishman

Major groups within Eudicots

Monocots BasalEudicots

Caryophyllids Rosids Asterids

Eudicots

Ranunculaceae - Buttercup family

Key featuresIn Montana: 14 genera, ~80 species (>30 in Ranunculus)

Habit: mostly herbs, some shrubs and vines

Leaves: alternate, basal, spirally arrangedsimple, lobed or compoundusually dentate, no stipules

Ranunculaceae - Buttercup family

Key featuresInflorescences: variableFlowers: very diverse• mostly perfect (bisexual)• some dioecious

Ranunculaceae - Buttercup family Flower characters

Symmetry: mostly radial (regular), some bilateral

Sepals: 4-merous, 5-merous, or (not 3’s)

Petals: reduced, 5-merous, or

Stamens: numerous, filaments unfused

Carpels: 3 - , sometimes 1

unfused superior ovaries

lateral placentation of ovules

Ranunculus - Buttercups Habit: perennial herbs, often found in moist areas

Ranunculus - Buttercups Leaves: alternate or basal

leaf shape variable (even within plants)simple --> lobed --> deeply divided --> compound

Inflorescences: solitary or small clusters

Ranunculus - Buttercups Flowers: regular (radially symmetric), usually yellow

Ranunculus -- Buttercups Sepals: 5, may be deciduous

Petals: 5 or 5-merous

Stamens: numerous

Carpels: numerous, unfused

Ranunculus -- Buttercups Fruit type:

achene = dry indehisent fruit w/ thin coat over 1 seed

1 achene

Aquilegia - Columbines Habit: perennial herbs, moist areas

Leaves: alternate or basal leaves ternately compound

Inflorescences: solitary or clusters

Flowers: regular, spurred

Aquilegia -- flower characters Sepals: 5, showyPetals: 5, showy w/ spursStamens: Carpels: usually 5

Aguilegia species often hybridize

photos: Scott Hodges

Delphinium - Larkspurs Ecology/distribution: open woodlands, grasslands

Delphinium - Larkspurs Habit: perennial herbs

Leaves: alternate or basal palmately lobed/compound

Delphinium - Larkspurs Inflorescence: raceme

Flowers: perfect, irregular, spurred

Delphinium -- flower characters Sepals: 5, petal-like, 1 sepal spurred Petals: 4, reduced, 1 spurred (inside sepal spur)Stamens: numerousCarpels: usually 3

Aquilegia and Delphinium fruit type follicle = dry, dehiscent carpel splitting along 1 suture

Delphinium

Aquilegia

Some other Ranunculaceae here

Aconitum

AnemoneThalictrum

Clematis

Berberidaceae - Barberry family

Key featuresIn Montana: 1 or 2 genera, <3 native species

Habit: herbs or shrubs (only shrubs here), wood yellowish

Leaves: usually alternate; simple, lobed or compound

Mahonia (now Berberis) - Oregon GrapeHabit: low shrubs

Leaves: alternate, variable, w/ spinose teethpinnately compound and evergreen in Mahonia only

Inflorescence: raceme

Flowers: perfect, regular

Mahonia/Berberis -- flower charactersSepals: 6, whorled Petals: 6, smaller than sepalsStamens: 6, touch sensitiveCarpels: 1; ovary superior

basal placentation of ovules

Mahonia/Berberis -- fruit type berry = indehiscent fruit soft inside except for seeds

Mahonia/Berberis

other true berries

Another large family in the basal eudicots

Papaver somniferum (Opium Poppy)

Papaveraceae

Argemone (Prickly Poppy)

Saxifraga

Populus tremuloides (Aspen)