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Seed Plants II: Angiosperms (Concepts (Magnoliophyta (flowering plants,…
Seed Plants II: Angiosperms
Concepts
Magnoliophyta
flowering plants
greatest number of living species
Angiosperm Carpels
the edges of sporophyll primordial crowd each other
grow shut
Closed Carpel
develops into a fruit that encloses the embryo
Figure 23-2
Figure 23-1
Double Fertilization
universal in flowering plants
Primitively Vesselless
lack vessels because their ancestor lacked them
Secondarily Vesselless
vesselless
P
**
'
fusion of carpels into a single structure
Sympetally
fusion of petals into one structure
Zygomorphy
flowers that are bilaterally symmetrical
Classification of Flowering Plants
Monocots
Eudicots
Basal Angiosperms
early angiosperms
Changing Concepts About Early Angiosperms
Ranalean Flower
relictual
Generalized
it has all parts and is arranged spirally
Monocots
Tepals
perianth members
Commelinoid Monocots
differ due to unique wax
Basal Eudicots
Anthocyanin Pigments
Betalains
water-soluble pigments
Perisperm
surrounds the developing embryo
Eudicots
Basal Eudicots
Anthocyanin Pigments
Betalains
water-soluble pigments
Perisperm
surrounds the developing embryo
Rosid Clade
Fabids
"erosids I"
Malvids
"Eurosids II"
Asterid Clade
most derived large clade
sunflowers and morning glory
Irdoid Compounds
rare
