Flower Flashcards
Flower definition
Shortened shoot, modified for sexual reproduction witin angiosperms
Reproduction organs: stamen + carpels
Production and protection of embryo
Flower Parts:
Floral stalk
Pedicel
Flower Parts:
Region where other floral parts are attached
Receptacle
Flower Parts:
reduced leaf often on side of the pedicel
bract
Flower Parts:
outermost non-reproductive group of modified leaves of a flower
Perianth
Type of Perianth:
outermost floral appendage; assemblage of sepals is the calyx
Sepals
Type of Perianth:
innermost whorl of colored modified leaves for attraction; forms the corolla
Petals
Flower Parts:
refers to all male organs; microsporophyll
Andromecium/stamen
Type of Androecium/Stamen:
stalk-like
Filament
Type of Androecium/Stamen:
pollen-bearing part
Anther
Flower Part:
refers to all female organs; megasporophyll
Gynoecium/carpel
Type of Gynoecium/Carpel:
catches pollen grains
Stigma
Type of Gynoecium/Carpel:
elevates the stigma
Style
Type of Gynoecium/Carpel:
where megaspores are produced
Ovary
Flower Whorls:
With 4 whorls: sepal, petal, stamen, and carpel
Complete
Flower whorls:
flower lacking 1 ore more of the 4 major whorl parts
incomplete
Flower attachment:
With pedicel
Pedicellate
Flower attachment:
lacking a pedicel
Sessile
Flower attachment:
having a short, rudimentary pedicel
subsessile
What do you call the opening of anthers?
Anthesis
Flower maturation:
refers to stamens developing first, or pollen release occurring first
Protandry
Flower maturation:
refers to when carpels or stigmas develop first before stamens mature or pollen is released
Protogyny
Flower maturation:
Flower in which the perianth remains closed at maturity; auto-fertilization
Cleistogamy
Flower maturation:
Normal situation where the perianth opens at maturity and pollen may be dispersed
Chasmogamy