PLSC212 Quiz 1

Recap of lecture 1

Variety

naturally occurring variants within a species that have different morphological characteristics from the typical member of a species

Cultivar

Species that are bred for a chosen unique characteristic that remains constant when reproduced

Hybrid

Species that are the offspring of 2 different species

Plant types

woody or herbaceous

woody plant

plants that have stems that remain year round. Deciduous and evergreen

herbaceous plant

Annual, biennial, perennial

Plant groups

angiosperm and gymnosperm

Angiosperm

covered seeds, flowering plants

Gymnosperm

naked sperm, conifers/cone bearer

Angiosperm leaf

has a bud at its base. Simple or compound.

Simple leaf

has a bud at the base of a single leaflet

Compound leaf

leaf is located at the base of the leaf containing multiple leaflets.

Types of compound leaf:

Pinnate, bipinnate, tripinnate, palmate

Palmately compound

Odd pinnate

Even pinnate

Bipinnate

Gymnosperm leaves

• Most are conifers and have needle like foliage or evergreen foliage

Common conifer foliage types

Needle like, awl like, scale like

Awl-like

Scale-like

Needle-like

4 basic leaf arrangements

Opposite, alternate, subopposite, whorled

Opposite

• Nodes and associated buds and leaves are arranged directly opposite from each other along the stem

Subopposite

Nodes and associated buds and leaves are arranged in a pattern that is not truly alternate or opposite

Whorled

3 or more buds and leaves are arranged on a single node

Ovate shape

Lanceolate

Cordate

Elliptical

Spatulate

Obovate

Oblanceolate

Obcordate

Oblong

Linear

Peltate

Cuneate

Reniform

Hastate

Spike

Raceme

Spadix

Solitary

Umbel

Corymb

Plant phenology

flowering time, setting seed, spring emergence, senescene

Fine texture

Plants that usually have smaller leaves and appear frilly or delicate

Medium texture

Plants that fall in the middle

Coarse texture

Plants that have a larger leaf and appear bulky or tough

Round, conical, oval

Vase, weeping, open

Columnar, spreading, irregular

Mounded, pyramidal, creeping