definitions

Question 1

Hypanthium

Answer 1

structure derived by adnation of the bases of the perianth elements and stamens. Disc-like to cup-shaped to flask like or long-tubular.

Question 2

hypogynous

Answer 2

a condition in which the perianth elements and stames are inserted directly on the receptacl and are wholly free from the gynoecium, no hypanthium present

Question 3

perianth

Answer 3

The collective term for all of the outer sterile parts of a flower, comprising the calyx and the corolla when both whirls are present.

Question 4

perigynous

Answer 4

a condition in which the perianth and stamens are adnate, forming a hypanthium that is free from the ovary; all perigynous flowers have a superior ovary.

Question 5

epigynous

Answer 5

a condition in which the perianth and stamens are adnate to the top or sides of the ovary; all flowers with an inferior ovary are epigynous.

Question 6

actinomorphic

Answer 6

radially symmetric, regular

2 or more lines of symmetry

Question 7

zygomorphic

Answer 7

Bilaterally symmetric, irregular, divisible into equal halves.

one plane

Question 8

nectary

Answer 8

a glandular structure that secretes a fluid containing sugars or amino acids

Question 9

staminode

Answer 9

a sterile stamen that does not produce pollen. It may be vestigial or variously modified.

Question 10

hemiparasite

Answer 10

a parasitic plant that is green and photosynthetic, manufacturing its own carbohydrates but drawing moisture or other substances from its host

Question 11

apopetalous

Answer 11

a corolla of distinct petals

Question 12

sympetalous

Answer 12

a corolla of petals that is connate, at least at the base

Question 13

urceolate

Answer 13

urn-shaped, used for corollas, involucres, that are short and broad but narrow both at the apex and the base

Question 14

campanulate

Answer 14

used to describe a corolla with the shape of a bell, the tube very short or absent and the throat greatly expanded

Question 15

bilabiate

Answer 15

shape of sympetalous corrola or calyx with only one line of symmetry

Question 16

stipule

Answer 16

the basal appendages borne in pairs by leaves of some plants

Question 17

umbel

Answer 17

an indeterminate inflorescences with pedicels arising from a common central point of attachment

Question 18

catkin

Answer 18

a spike-like or racemelike inflorescence of apetalous staminate or pistillate flowers, often with scaly bracts and wind pollination. Catkins are often lax and drooping.

Question 19

head

Answer 19

short dense inflorescence of sessile flowers attached to a receptical

Question 20

capitulum

Answer 20

a short dense inflorescence of sessile flowers, a head

Question 21

Brassica oleracea

Answer 21

the species that has bee bred so that only single characteristics are produced. Kale=leaves
brocoli= inflorescences
cauliflower= inflorescences bred without chlorophyll
brussel sprouts= stem with lots of lateral buds.

all Brassica oleracea