Card Set Information
8 and 23
(basic parts of flowers) Sepal
are the outermost whorl of flower parts and are often green
(basic parts of flowers) Petals
are usually showy and colored, located just inside the sepals
(basic parts of flowers) Stamens
male reproductive structure.
contains: filament and anther
stalk-like structure that makes up the stamen
top most part of the stamen.
-produces pollen grains inside of the structure
(basic parts of flowers) Pistil
female reproductive structure
3 parts to it: stigma, style, and ovary
-top most part of pistil
stalk like feature of a pistil that connect to ovary and stigma
base of the pistil.
-inside it contains the ovule, immature seed
(basic parts of flowers) Tepals
term used when both sepals and petals look alike
(basic parts of flowers) Receptable
end of the stem, where the flower is attached.
flowers that have all 4 basic parts
ex) sepals, petals, stamens, pistil
lacking one or more basic flower parts
ex) sepals, petals, pistil, stamen
lacking either stamen or pistils, or both
bisexual (both gender structures)
-having both stamen and pistil
one flower on a major stalk
many flowers in one single stalk
-more energy efficient
essential flower parts? (2)
stamen and pistil, because they are used for reproduction
function of flower
bring about succesful reproduction to create new plants
why is there a diverse of flowers?
flower parts coevolved with their pollinators developing traits that attract mammals and insects.
(flower evolution) primitive traits (5)
-numerous parts and complete
-free or seperate parts
-ovary is superior
-radial or regular symmetry
(flower evolution) Advanced traits
-fewer parts or incomplete
- fused parts
-ovary is inferior
-bilateral or irregular symetry
-petals fused to form a tube for specific pollinator
Ovary that is superior...
-ovary is above other flower parts
Ovary is inferior...
ovary is below other flower parts
-sinks the ovary down and protects it
Regular symmetry flower
cut in half equally at any point
Irregular symmetry flower
cannot cut in half equally at all points
-many flowers clustered together