flower
Cytoplasmic streaming actin.
Biology of Plants 6:10 Tradescantia stamens - cytoplasmic streaming
Sexual Encounters of the Floral Kind
calyx=sepals > corolla (perianth) pistil=carpels.
All
stamens=
androecium,
carpels=
gynoecium.
sunflower
Auxin in stem & bud turn; mature flowers face east; Fibonacci sunflower
5 dark anthers, curved stigma; native Central America, monecious?
Fibonacci sunflowers?
pollen_fertilization
Embryo sac=egg, synergids, central cell 2 polar nuclei, antipodals
double_fertilization
APPLE: inferior; ORANGE/PEPPER: superior; BANANA: pericarp; PEANUT: cotyledons.
Pistil: fused carpels.
FRUIT? tomato, squash, pumpkin, eggplant, sw pepper, chile, nuts.
fruit
PEANUT EMBRYO; BANANA 3, APPLE 5, ORANGE 10-13 carpels, OVARY. STRAWBERRY seeds = achenes in RECEPTACLE.
How many carpels does a banana have?
BBC-Life/9_Plants
QH 501.L544 2010. 27:00 Alsomitra seeds have flying wings
dispersal
Ants eat elaisome
growth-secondary
TOILET dead heartwood, living sapwood. Cork=outer periderm. Herbaceous: vascular bundles; LIGNIN in bamboo
growth-primary
Water pulled up a tree through xylem
Sap flow through phloem in summer
Sap flow through phloem in spring
Maple xylem sap
stem
Apical dominance -> bud scales; axillary -> shoot w its own buds
leaf_morphology
JUGLANS NIGRA, GLEDITSIA TRIACANTHOS LEAVES; fruit.
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