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Basal Tricolpates

Basal Tricolpates. Finally, true dicots. Basal Angiosperms, view 1. Basal Angiosperms, view 2. Characters of Tricolpates. Tricolpate pollen Floral parts whorled, members alternating Staminal filaments slender Sieve element plastids with starch grains Nuclear & chloroplast sequence data.

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Basal Tricolpates

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  1. Basal Tricolpates Finally, true dicots

  2. Basal Angiosperms, view 1

  3. Basal Angiosperms, view 2

  4. Characters of Tricolpates • Tricolpate pollen • Floral parts whorled, members alternating • Staminal filaments slender • Sieve element plastids with starch grains • Nuclear & chloroplast sequence data

  5. Basal Tricolpates (true dicots)

  6. Basal Tricolpates – Utah View • Ranunculales, order of buttercup family, is important • Ranunculaceae, Berberidaceae, Papaveracae • Platanales of some interest • Proteales – fascinating but mostly southern hemisphere

  7. Ranunculales • Mostly herbaceous • Toothed to lobed or compound leaves • Floral parts distinct, calyx, often many stamens, ovary superior, seeds with tiny embryos and much endosperm • Alkaloid berberine • Nuclear and chloroplast DNA

  8. Papaveraceae (inc. Fumariaceae) • Deciduous sepals • Carpels 2, connate • Fruit a capsule • Nearly all have laticifers • Also has properties of Ranunculales

  9. Papaveraceae (2) • Herbs or shrubs • Laticifers present (opium), alkaloids • Lvs simple but lobed or dissected, pinnate venation • Flowers bisex, radial or bilat, Sepals 2, deciduous, petals 4 or 6 (often crumpled), sometimes united distally, stamens many to 2*3, carpels 2, united, superior ovary, placentation parietal, fruit a capsule

  10. Dendromecon Dicentra Corydalis Lump or split? Argemone

  11. A family of exceptions Mostly herbaceous, some shrubs, vines Lvs usually alt or spiral, usually simple, oft lobed or dissected, usually pinnate venation, usually no stipules Flowers usually bisex, usually radial, usually not 3-merous, tepals distinct, calyx usually distinct; stamens usually many, carpels usually 5+, US distinct, ovary superior Fruit follicles (dehiscent, >1 seed) or achenes (indehiscent, 1 seed) Ranunculaceae

  12. Many stamens No hypanthium No stipules Ranunculaceae

  13. Berberidaceae • Herbs or shrubs (ours), yellow wood (berberine) • Lv usually alt to spiral, simple to compound, entire to serrate or spinose-serrate • Flrs bisex, rad, usually 3 merous, calyx distinct, inner petals (staminodes?) nectar-producing, stamens 4-many,anthers opening by flaps, carpel 1, ovary superior; fruit usually berry

  14. Platanaceae • Trees, monoecious • Branched hairs • Lvs alt or spir, usually palmate, gland tooth, petiole covers axil bud, stipules • Flr unisex, reduced. Sep 3-7,pet 3-7, st 3-7, carp 5-9, distinct, ov sup. Fruit achene, with bristles

  15. web1.p15132387.pureserver.info/.../ Platane/ www.hope.edu/.../BasalEudicots/ Platanaceae Platanaceae www.hope.edu/.../BasalEudicots/ Platanaceae

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