LAB 10

Question 1

Cypress or cedar family

Answer 1

Cupressaceae

Question 2

Synapomorphy of Cupressaceae

Answer 2

-seed cones with bract-scale complexes fused for most of their common length

Question 3

What is the most widely distributed gymnosperm family

Answer 3

Cupressaceare

Question 4

Leaves on Cupressaceae

Answer 4

Persistent, scale-like, alternating in pairs that are right angles to one another

Question 5

Which genus has exploding raisin cone and peltate scales

Answer 5

Chamaecyparis (false cypress)

Question 6

Foliage of Chamaecyparis

Answer 6

Fine white X’s on back

Question 7

5 genus’ under the family Cupressaceae

Answer 7

• Metasequoia
• Taxodium
• Thuja
• Chamaecyparis
• Juniperus

Question 8

Foliage on Thuja

Answer 8

-Scale-like, alternating in pairs in right angles

Question 9

Cone on thuja

Answer 9

-8 to 12 thin leathery to woody scales

Question 10

Foliage on Juniperus

Answer 10

Dimorphic, scale-like or awl-like leaves

Question 11

Cones on Juniperus

Answer 11

Berry-like, composed of 3-8 semi-fleshy scales

Question 12

Pine family

Answer 12

Pinaceae

Question 13

Leaves in Pinaceae family

Answer 13

persistent, needle-like, spirally arranged

Question 14

Genus of Pine

Answer 14

Pinus

Question 15

Foliage of Pinus

Answer 15

persistent and needle-like in fascicles, groups of 2-5

Question 16

Cones of Pinus

Answer 16

Pendent with scales spirally arranged

Question 17

Genus Picea

Answer 17

Spruce

Question 18

Foliage of Picea

Answer 18

generally 4 sided, with sterigmata (peg-like projections)

Question 19

Cones of Picea

Answer 19

Cylindrical pendent cone

Question 20

Genus of Douglas Fir

Answer 20

Pseudotsuga

Question 21

Foliage of Pseudotsuga

Answer 21

• pointed buds

- petiolate leaves persist for 5-8 years and leave a slightly raised leaf cushion when shed

Question 22

Cones of Pseudotsuga

Answer 22

Persistent scales and 3 lobed bracts

Question 23

Genus of Fir

Answer 23

Abies

Question 24

Foliage of Abies

Answer 24

• Extremely aromatic

- needles are emarginate and twisted at base to appear flattened

Question 25

Cones of Abies

Answer 25

upright and deciduous at maturity

Question 26

Genus of Hemlock

Answer 26

Tsuga

Question 27

Foliage of Tsuga

Answer 27

• Spirally arranged, 2-ranked by a twist in the petiole

- apex blunt borne on two peg like projections from the twig

Question 28

Cones of Tsuga

Answer 28

pendent and small

Question 29

Genus’ in the Pinaceae

Answer 29

• Pinus
• Picea
• Larix
• Pseudotsuga
• Abies
• Tsuga

Question 30

Which family is the most important timber producing family of conifers, and is mostly distributed through the northern hemisphere

Answer 30

Pinaceae

Question 31

Apophysis

Answer 31

the exposed part of a closed cone

Question 32

Bract

Answer 32

A leaf-like part usually at the base of a flower

Question 33

Cultivar

Answer 33

A variety of species that persist under cultivation

Question 34

Dioecious

Answer 34

Unisexual, with male and female reproductive structures on separate plants

Question 35

Exserted

Answer 35

Extending beyond

Question 36

Fascicle

Answer 36

a small, close bundle or cluster

Question 37

Fascicle sheath

Answer 37

deciduous or persistent bud scales at the base of the fascicle

Question 38

Monoecious

Answer 38

having male and female structures on the same plant

Question 39

Monotypic

Answer 39

with only one representative

Question 40

Peltate

Answer 40

shield-shaped and attached by the lower surface to the supporting stalk

Question 41

Serotinous

Answer 41

of cones that remain closed long after the seeds inside are ripe