Bio Lab 7 - Leaves Flashcards
Leaf shapes
Simple Simple lobed Pennately compound Palmatly compound Bi palmatly compound
Leaf arrangements
Opposite
Alternate
Whorl
Basel rosette
Secondary growth
Cambien: secondary stem cells Secondary xylem: wood Secondary phloem: bark Pith: center core Cork: flaky outer layer of bark
Root system
Tap: stable, big, deep
Fibrous: stabilizes soil, more surface area
Aspen
All one organism with single stems Threatened because lack of fire Grows quickly Set lifetime Most diverse habitat in state
Root structure
Cap: protects, gravitational
Stem cells: differentiate and grows into roots
Region of elongation: undifferentiated cells grow and differentiate
Region of maturation: differentiation, no hairs
Ash
Pennately compound, opposite, pennate veins, flat plateaued bark,
Fruit: s
Maple
Simple lobed opposite, palmate veins
Smooth silvery bark
Semare, helicopters
Honey locus
Compound, bi pennate, pennate veins, alternate
Dogwood
Simple unlobed, pennate deep veins, opposite
Branches curve at end, flowers before leaves
Drupe, red
Sweet gum
Simple lobed, palmate veins, less jagged than maple, alternate
Ropey bark
Capsule fruit
Magnolia
Simple unlobed, thick waxy, pennate veins, alternate
Follicle fruit
Fuzzy buds at branch tips
Red oak
Simple lobed, pennate veins, pointy leaves, alternate
Nut fruit
White oak
Simple lobed rounded, pennate veins, alternate
Nut fruit
Cottonwood
Riparian dependent, need water to reproduce, dioecious
Simple unlobed,heart shaped leaves, pennate veins
Capsule fruit
