Flower and Bud Morphology Flashcards
Stamen
Male
Pistil
Female
Perfect
contains a stamen and pistil
Imperfect
either a stamen or pistil is missing
Monoecious
same plant contains both stamens and pistils in separate flowers
Dioecious
plant has either stamens or pistils but not both
Anther
pollen produced here on top of filament
Fillament
stamen stalk; holds up anther
Stigma
receives the pollen; distal end of pistil
Style
elongated area b/w stigma & ovary
Ovary
Enlarged basal portion of pistil containing the ovule
Ovule
egg bearing area of ovary which will house seed after fertilization
Petal
showy part of flower usually colored
Sepal
green leaf-like outer flower part that encloses developing bud
Receptacle
where flower parts are attached
Bract
specialized structure located on stem below flower or inflorescence, Can have leaf, petal, or scale-like texture,Offers protection, May help attract pollinators.
Inflorescence
collection of individual flowers arranged in a specific fashion, Solitary-single flower with pedicel attached to stem.
Solitary Inflorescence
single flower with pedicel attached to stem
Spiked Inflorescence
elongated unbranched with sessile flowers
Raceme Inflorescence
like spike but with flowers stalked on a pedicel
corymb Inflorescence
individual flowers attached at different points along peduncle (inflorescence axis)
Umbel Inflorescence
pedicels of individual flowers radiate from same place at peduncle top
Determinate plant
vegetative growth ceases with formation of flowers/fruits
Indeterminate Plant
vegetative growth can continue after flowers/fruits start forming
Leaf Scar
mark that remains after a leaf falls off a twig, Has distinct shape and vascular bundle scar, Lateral bud development at leaf scar .
Lenticel
raised mark on a stem made of corky tissue that aids in gas exchange with atm.
Bud Scale
modified leaf or leaves that protects the new developing bud.
