Please enable JavaScript.
Coggle requires JavaScript to display documents.
Seed Plants II: Angiosperms (Concepts (Angiosperm carpels (Known as closed…
Seed Plants II: Angiosperms
Concepts
Magnoliophyta
Refers to angiosperms
Angiosperm carpels
Edges of sporophyll grow shut
Known as closed carpel
Grows into fruit
Double fertilization
Universal in flowering plants
Second sperm cell fuses with megagametophyte
Primitively vesselless
Have wood that lack vessels
Secondarily vesselless
Wood had vessels but lost them
Pistils
Fusion of carpels
Sympetally
Fusion of petals
Zygomorphy
Flowers are bilaterally symmetrical
Changing Concepts About Early Angiosperms
Ranalean Flower
Hypothesized to be relictual to magnolias
Generalized
All parts are arranged spirally
Classification of Flowering Plants
Monocots and Eudicots
Classification of most angiosperms
Basal angiosperms
Early angiosperms diverged into several clades
Basal Angiosperms
Uniaperturate
Pollen grains have a single germination pore
Monocots
Tepals
Perianth members
Alismatales
Aquatic plants
Liliales
Monocots with ordinary nectaries at base of stamens
Asparagales
Septa
Fused sides of carpels
#
Septal nectaries
Open septa that secrete nectar
Dioscoreales
Important food crop
Have petiolate and mistaken for dicots
#
Commelinoid monocots
Arecales
Palms
Poales
Grass family that also includes
Bromeliads and sedges
Zingiberales
House plants: canna lillies and gingers
Eudicots
Tricolpate
Three germination pores
Basal eudicots
Caryophyllalis
Anthocyanin pigments
Pigments in other flowering plants
Betalains
Water soluble pigments in caryophyllalis
Perisperm
Nutritive tissue in nucleus cells
Santalales
Sandalwood family, parasitic
Rosid clade
Made up of diverse families
Two main clades of roses
Fabids (eurosids I)
Malvids (eurosids II)
Asterid Clade
Sunflowers, periwinkle, petunia, and morning glory.
Distinguishable by three characteristics
Sympetalous flowers
#
Few stamens
Stamens alternate with petals
Iridoid compounds
Found only in asterids
Two orders
Lamiids (euasterids I)
Campanulids
