ca plt fampapavransaxrose · petals number three to four, rarely eight, truncated-spatulate or...
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California Plant Families Santa Barbara Botanic Garden
Mary Carroll
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Vascular Plant
Cladogram
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Flowering Plants
Monosulcate pollen (1 groove))
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Tricolpate pollen (3 furrows, different orientation than monosulcate)
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Platanaceae (flowers from Wikipedia) Flowers small, inconspicuous, hypogenous, regular, unisexual, receptacle short, smooth, hypogynous disk absent, perianth reduced, sepals number three to four, rarely eight, free or basally fused, shorter than the petals, triangular. Petals number three to four, rarely eight, truncated-spatulate or vestigial, scarious, frequently absent in the female flowers, male flowers with androecium haplostemonous, isostemonous, oppositisepal, with three to four, rarely eight, stamens, gynostemium short or vestigial, anthers basifixed, not versatile, dithecous, tetrasporangiate, elongated, connectivum apically widened, peltate, dehiscence along longitudinal valves; pistillidium sometimes present, female flowers with superior gynoecium carpels apocarpous in two or three whorls, imperfectly closed apically, surrounded by petals, linear stylodious, stigmas internal, decurrent in two ridges, more or less dry, two ovules per carpel but one nearly always aborts, orthotropous, bitegmic, crassinucellated, pendulous, apical to marginal placentation, three or four staminodes 3-4, no nectaries
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Ranunculaceae
herbaceous, rarely woody
(and then a vine)
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Ranunculaceae
free perianth parts, radial
symmetry in most
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Ranunculaceae
free perianth parts,
radial symmetry in most
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Ranunculaceae
free perianth parts, bilateral symmetry in very few
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Ranunculaceae sepals some@mes absent
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Ranunculaceae
numerous free stamens
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Pis,ls = gynoecium –> 3 op,ons (unicarpellate, apocarpous, syncarpous)
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Ranunculaceae
apocarpous
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Tricolpate pollen (3 furrows, different orientation than monosulcate)
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Platanaceae (flowers from Wikipedia) Flowers small, inconspicuous, hypogenous, regular, unisexual, receptacle short, smooth, hypogynous disk absent, perianth reduced, sepals number three to four, rarely eight, free or basally fused, shorter than the petals, triangular. Petals number three to four, rarely eight, truncated-spatulate or vestigial, scarious, frequently absent in the female flowers, male flowers with androecium haplostemonous, isostemonous, oppositisepal, with three to four, rarely eight, stamens, gynostemium short or vestigial, anthers basifixed, not versatile, dithecous, tetrasporangiate, elongated, connectivum apically widened, peltate, dehiscence along longitudinal valves; pistillidium sometimes present, female flowers with superior gynoecium carpels, apocarpous in two or three whorls, imperfectly closed apically, surrounded by petals, linear stylodious, stigmas internal, decurrent in two ridges, more or less dry, two ovules per carpel but one nearly always aborts, orthotropous, bitegmic, crassinucellated, pendulous, apical to marginal placentation, three or four staminodes 3-4, no nectaries
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Poppy Family Papaveraceae
usually
herbaceous, rarely woody
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Papaveraceae
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Papaveraceae usually half the # sepals as petals
(4 or 6 petals, 2 or 3 sepals)
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Papaveraceae
4 petals
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Papaveraceae or 6 petals
and numerous stamens
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Papaveraceae
syncarpous, ovary superior, fruit a capsule
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Saxifragaceae herbaceous, with palmate leaves, oFen basal
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Saxifragaceae inflorescence with reduced leaves
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Saxifragaceae receptacle a hypanthium
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Saxifragaceae gen. 5 sepals, 5 petals, 5-‐10 stamens
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Saxifragaceae gen 2-‐3 carpels fused at base,
ovary superior to par@ally inferior
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Grossulariaceae
Always woody
Alternate palmate leaves
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Currants without nodal spines
Gooseberries (usually) with nodal spines
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Grossulariaceae
4 – 5 sepals
4-5 petals (same
number as sepals)
4-5 stamens (same
number as sepals)
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Grossulariaceae
4 – 5 sepals
4-5 petals (same
number as sepals)
4-5 stamens (same
number as sepals)
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Grossulariaceae
Hypanthium – cup to tube
shaped
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Grossulariaceae Hypanthium – cup to tube-shaped
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Grossulariaceae Ovary inferior (pedicels often pendent)
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The Rose Family -‐ Rosaceae Herbaceous to woody Hypanthium (expanded
receptacle) 5 sepals, 5 petals – separate (free), radial symmetry Numerous stamens usually Ovary superior (unicarpellate, apocarpous) or inferior (syncarpous
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Rosaceae
Numerous stamens
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Rosaceae Hypanthium
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Rosaceae
Unicarpellate = ovary superior, one ovary, one style, one s@gma, one
chamber
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Rosaceae Apocarpous = ovaries superior, more than one separate carpel per flower
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Rosaceae
Syncarpous = more than one fused carpel per flower, in this family, ovary always
inferior