Marine Botany Practical

Front 1

Name the genus.

Back 1

Microcystis

Front 2

Name the genus.

Back 2

Oscillatoria

Front 3

Name the genus.
What is distinctive about this genus?

Back 3

Lyngbya
Sheath is visible under a light microscope for Lyngbya.

Front 4

Packet of cells that slide out of sheaths for reproduction

Back 4

Hormogonia

Front 5

Name the genus.

Back 5

Spirulina

Front 6

What are the structures indicated by the arrows called?
What is genus of the image A? image B?

Back 6

Heterocysts
A - Nostoc
B - Calothrix

Front 7

Name the genus.

Back 7

Stigonema

Front 8

Label parts of the seagrass

Back 8

A - Leaves
B - Shoots
C - Roots
D - Nodes
E - Rhizome

Front 9

What is this?

Back 9

A spathe enclosing a spadix with alternating male and female flowers

Front 10

How do you tell the difference between Heterozostera and Zostera?

Back 10

Heterozostera has 4-12 cortical vascular bundles while Zostera only has 2 cortical vascular bundles.

Front 11

Name the genus.
It is notable for its very large _________.

Back 11

Amphibolis
pollen.

Front 12

What is this and what is it used for?

Back 12

"grappling hooks" to aid in dispersal and settlement

Front 13

Name the genus.

Back 13

Ulva

Front 14

What are the structures indicated by the arrow called?

Back 14

pyrenoids

Front 15

What form of cell division is shown?

Back 15

segregative cell division

Front 16

What genus do these images belong to?

Back 16

Cladophora

Front 17

What genus do these images belong to?

Back 17

Codium

Front 18

What is this an image of? What do you call the pointy tip?

Back 18

utricle
mucronate

Front 19

What is the arrow pointing to? What is the inwardly growing material called?

Back 19

gametangium
trabeculae

Front 20

What are the blue arrows pointing to?

Back 20

a hair and hair scar

Front 21

Name the genus and label the parts.

Back 21

Caulerpa
A - assimilators
B - stolon
C - rhizoids

Front 22

What is this image and what is its function?

Back 22

trabeculae
internal structural support

Front 23

Name the genus and species.

Back 23

Caulerpa cactoides

Front 24

Name the genus.

Back 24

Halimeda

Front 25

A type of reproductive among Caulerpa wherein the cytoplasm rounds up then releases anisogametes via extrusion papillae leaving an empty "shell".

Back 25

holocarpy

Front 26

Name the genus. What are the circles on the surfaces called?

Back 26

Acetabularia
cysts on gametangial rays

Front 27

What is this alga and it's epiphyte (red arrow) called?

Back 27

Hormosira banksii with its epiphyte, Notheia

Front 28

What structure is the red arrow pointing to?

Back 28

plurilocular sporangium

Front 29

What are the red arrows pointing to?

Back 29

unilocular sporangia

Front 30

What are the red arrows pointing to?
Name the genus.

Back 30

vegetative propagules
Sphacelaria

Front 31

What kind of growth is displayed?

Back 31

trichothallic growth

Front 32

What order does this alga belong to? How do you know?

Back 32

Sporochnales because of its hair tufts

Front 33

Name the genus. What is characteristic of it in terms of growth?

Back 33

Dictyota. Dichotomous branching of apical cells.

Front 34

Name the genus.

Back 34

Zonaria

Front 35

Name the genus.

Back 35

Dictyopteris

Front 36

Name the genus.

Back 36

Padina

Front 37

What order does this alga belong to?
Which image is the gametophyte?

Back 37

Scytosiphonles. Image A.

Front 38

What are these epiphytes (brown spots) on Ulva and what are the structures indicated by the red arrows?

Back 38

Myrionema strangulans; unilocular sporangia

Front 39

What is unusual about Splachnidium?

Back 39

Its phaeophycean hairs and unilocs are located in conceptacles.

Front 40

What is this image and how would you describe it?

Back 40

Holdfast that is haptera

Front 41

Name the genus and species.

Back 41

Ecklonia radiata

Front 42

Name the genus and species. What are the bulb-like structures and their function?

Back 42

Macrocystis pyrifera
pneumatocysts for floatation

Front 43

Name the genus and specie. What are the two major features that helps distinguish it from another genus?

Back 43

Undaria pinnatifida
Midrib and basal sporophyll

Front 44

In what order do Ecklonia radiata, Macrocystis pyrifera, and Undaria pinnatifida belong to? Where are their reproductive structures located?

Back 44

Laminariales
Unilocs in sori among paraphyses

Front 45

On Hormosira banksii, what are the protrusions on the bulbs called?

Back 45

conceptacles

Front 46

This brown alga grow in Point Lonsdale tide pools. Name the genus, species, and the family it belongs to. Where are their receptacles located?

Back 46

Xiphophora chondrophylla in the Family Fucaceae. Their receptacles are located at swollen tips.

Front 47

Name the genus. What is distinctive about brown alga in this family?

Back 47

Sargassum. They have basal leaves.

Front 48

Name the genus. What can you say about its growth?

Back 48

Cystophera. It has sympodial growth.

Front 49

The Order Durvillaeales includes bull kelps. Which genus ha a spongy texture and air chambers when glycerised?

Back 49

Durvillaea antarctica

Front 50

What are these images showing?
Describe the shape in each image.

Back 50

tetrasporangia
A - cruciate
B - tetrahedral
C - zonate

Front 51

What is this image? What are its parts?

Back 51

cystocarp
ostiole - terminal pore
pericarp - outer case
carposporangia each containing a single carpospore

Front 52

What are the red and blue arrows pointing to?

Back 52

Red - carpogonium
Blue - trichogyne

Front 53

What are the deciduous colourless hairs called on Polysiphonia?

Back 53

trichoblasts

Front 54

What are the differences between images A and B?

Back 54

A - pericentral
B - periaxial

Front 55

Name the genus and order.

Back 55

Polysiphonia in the Order Ceramiales