lab quiz 1 on friday – mosses, pteridophytes and conifers obe seminars today 12:10 (sb 117) marnie...
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Lab quiz 1 on Friday –Mosses, pteridophytes and conifers
OBE seminars today
12:10 (SB 117)Marnie Rout
4:10 (ISB 110)Lila Fishman
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Major groups within Eudicots
Monocots BasalEudicots
Caryophyllids Rosids Asterids
Eudicots
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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
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Ranunculaceae - Buttercup family
Key featuresInflorescences: variableFlowers: very diverse• mostly perfect (bisexual)• some dioecious
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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
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Ranunculus - Buttercups Habit: perennial herbs, often found in moist areas
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Ranunculus - Buttercups Leaves: alternate or basal
leaf shape variable (even within plants)simple --> lobed --> deeply divided --> compound
Inflorescences: solitary or small clusters
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Ranunculus - Buttercups Flowers: regular (radially symmetric), usually yellow
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Ranunculus -- Buttercups Sepals: 5, may be deciduous
Petals: 5 or 5-merous
Stamens: numerous
Carpels: numerous, unfused
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Ranunculus -- Buttercups Fruit type:
achene = dry indehisent fruit w/ thin coat over 1 seed
1 achene
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Aquilegia - Columbines Habit: perennial herbs, moist areas
Leaves: alternate or basal leaves ternately compound
Inflorescences: solitary or clusters
Flowers: regular, spurred
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Aquilegia -- flower characters Sepals: 5, showyPetals: 5, showy w/ spursStamens: Carpels: usually 5
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Aguilegia species often hybridize
photos: Scott Hodges
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Delphinium - Larkspurs Ecology/distribution: open woodlands, grasslands
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Delphinium - Larkspurs Habit: perennial herbs
Leaves: alternate or basal palmately lobed/compound
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Delphinium - Larkspurs Inflorescence: raceme
Flowers: perfect, irregular, spurred
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Delphinium -- flower characters Sepals: 5, petal-like, 1 sepal spurred Petals: 4, reduced, 1 spurred (inside sepal spur)Stamens: numerousCarpels: usually 3
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Aquilegia and Delphinium fruit type follicle = dry, dehiscent carpel splitting along 1 suture
Delphinium
Aquilegia
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Some other Ranunculaceae here
Aconitum
AnemoneThalictrum
Clematis
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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
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Mahonia (now Berberis) - Oregon GrapeHabit: low shrubs
Leaves: alternate, variable, w/ spinose teethpinnately compound and evergreen in Mahonia only
Inflorescence: raceme
Flowers: perfect, regular
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Mahonia/Berberis -- flower charactersSepals: 6, whorled Petals: 6, smaller than sepalsStamens: 6, touch sensitiveCarpels: 1; ovary superior
basal placentation of ovules
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Mahonia/Berberis -- fruit type berry = indehiscent fruit soft inside except for seeds
Mahonia/Berberis
other true berries
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Another large family in the basal eudicots
Papaver somniferum (Opium Poppy)
Papaveraceae
Argemone (Prickly Poppy)
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Saxifraga
Populus tremuloides (Aspen)
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