Midterm 1 Part 1 Flashcards
This section goes up to and stops before fruit
Morphologically distinct identities
Morphological species concept
Linnaeus believed species were created by God
Morphological species concept
Based on ability of two organisms to sexually interact and produce a viable offspring
Biological species concept
Mayr
Biological species concept
Species evolving lineages
Evolutionary species concept
Darwin
Evolutionary species concept
Plant Life-cycle duration = One Year
Annual
Plant Life-cycle duration = Two Year
Biennial
Plant Life-cycle duration = Three+ Years
Perennials
Annual
they germinate, grow vegetatively, form flowers, and produce fruits and seeds.
Biennial
vegetative in the 1st year and produce flowers/fruit/seeds in the 2nd year.
Perennial
live for three or more years and usually flower and fruit yearly once they reach to sexual maturity.
Where are leaves and axillary buds produced?
Nodes
If plant is cut at ______, the closest bud will start growing a new stem
Internode
horizontal underground stems, with distinct internodes bearing scale-like leaves
Rhizomes
Underground and resemble rhziomes via elongated internodes
Stolons
above ground, thinner than rhizomes with less obvious scale like leaves
Runners
when root of runner breaks it forms
2 separate plants
very swollen & fleshy tip of a stolon
Tuber
very short, disk-like, underground stem surrounded by thick, fleshy (modified) leaves
Bulb
the bulb leaves cover entirely each other
Layered bulbs
the bulb leaves cover only partially each other
Scaly Bulbs
short, erect, underground, fleshy stem covered with thin, dry (modified) leaves called tunics
Corm
all the leaves at the base of the stem forming a rosette
Basal Leaves