Exam 1

Question 1

What is zygomorphic?

Answer 1

bilateral floral symmetry

Question 2

What is actinomorphic?

Answer 2

radial floral symmetry

Question 3

How are the binomial names of plants written?

Answer 3

Genus, Specific epithet, authority

Genus & Species are underlined or italic

Question 4

In the taxonomic hierarchy, what is below species?

Answer 4

forma = color variant
variety = geographical variation w/morphological distinction

Question 5

Who determines a plant’s scientific name?

Answer 5

International botanical congress

Question 6

How is the “species name” determined for a new species?

Answer 6

it usually describes the plant in some way

Question 7

For a name to be legitimate/correct, what is necessary?

Answer 7

1. validity published in printed matter
2. Latin diagnosis
3. type specimen indicated - must be in a herbarium
4. intended rank - taxonomy
5. illustrated and description

Question 8

Why not use only common names?

Answer 8

a common name is not universally applied & may refer to several different species

Question 9

What is an angiosperm?

Answer 9

flowering plants

Phylum Magnoliophyta

Question 10

When did angiosperms first appear in the fossil record?

Answer 10

ca.130 m.y.b.p.

Question 11

When did angiosperms initially dominate all other plant groups?

Answer 11

70 m.y.b.p.

Question 12

What is the perianth?

Answer 12

collective term for non-reproductive floral parts

Question 13

What are gynoecium?

Answer 13

the female parts of a flower

Question 14

What are androecium?

Answer 14

The male parts of a flower

Question 15

What are all floral parts attached to?

Answer 15

the receptacle

Question 16

What does hypogynous insertion mean?

Answer 16

floral parts are attached below the base of the ovary making the ovary superior

Question 17

What does perigynous mean?

Answer 17

floral parts around edge of cup-like receptacle; making the ovary superior

Question 18

What does epigynous mean?

Answer 18

floral parts are adnate to the ovary wall, appearing to emerge above the ovary making the ovary inferior

Question 19

When petals & sepals are alike what are they called? Give an example.

Answer 19

tepals

eg) tulip

Question 20

What does connate mean?

Answer 20

when similar parts of the Perianth are fused together

eg) petals together to form a tube

Question 21

What does adnate mean?

Answer 21

unlike parts of the perianth are fused together

Question 22

How do you determine the # of carpels?

Answer 22

1. count the # of stigmas, styles or style branches
2. examine # of chambers (locules in ovary)
3. look for rows of seeds (1/2 as many carpels as rows of seeds)

Question 23

What is a couplet?

Answer 23

2 leads in a dichotomous key with the same number

Question 24

What does it mean for a flower to be perfect?

Answer 24

they have both androecium & gynoecium

Question 25

What does monecious mean?

Answer 25

both staminate & carpellate flower born on a single plant

Question 26

What does Dioecious mean?

Answer 26

staminate & carpellate flowers born on separate individual plants

Question 27

What is a pedicel?

Answer 27

stalk of the flower

Question 28

What is a peduncle?

Answer 28

stalk of a flower cluster

Question 29

What is a inflorescence?

Answer 29

groups of flowers born on the same plant

Question 30

What does it mean for a leaf to be sessile?

Answer 30

they lack petioles

Question 31

What are cauline leaves?

Answer 31

stem leaves

Question 32

What are basal leaves?

Answer 32

leaves that form “rosettes” or clusters at the base of a plant (dandelion)

Question 33

What is a bract?

Answer 33

a modified lead at the base of an inflorescence or a flower

Question 34

What parts of a flower are androecium?

Answer 34

filament & anther - male parts

these are the stalk & terminal (respectively) of the smaller

Question 35

What parts of a flower are gynoecium?

Answer 35

stigma, style, ovary - female parts

all together these are called the pistil

Question 36

What is the corolla?

Answer 36

all of the petals

Question 37

What is the ovule locule?

Answer 37

the space in the ovary btw the ovary wall & ovule

Question 38

What is the name for all the sepal?

Answer 38

calyx

Question 39

What is the difference in leaf venation between dicots & monocots?

Answer 39

dicot leaves are netted veined

monocot leaves are parallel veined

Question 40

Which has 2ndary growth: monocots or dicots?

Answer 40

dicots

Question 41

What is the difference in the # of cotyledons in the seed btw dicots and monocots?

Answer 41

dicots have 2

monocots have 1

Question 42

Which has more genera & species: monocots or dicots?

Answer 42

dicots