Plant Info

Question 1

fern definition

Answer 1

vascular plants with large, complex, leaves with branching venation that reproduced by spores

Question 2

how many spp of ferns are there?

Answer 2

abt 11,000 worldwide, 550 in US, abt 100 in NY

Question 3

leaves die back at end of growing season with new leaves produced the following growing season

Answer 3

herbaceous

Question 4

leaves remain intact throughout winter and the next growing season

Answer 4

evergreen

Question 5

fertile fronds

Answer 5

fronds with spores for reproduction: can be leaves or stalks

Question 6

sterile fronds

Answer 6

do not have spores and are always in leafy form for photosynthetic activity

Question 7

simple

Answer 7

single palmate leaf blade

Question 8

pinnatifid

Answer 8

lobed or deeply lobed, but not fully divided to the rachis

Question 9

pinnate

Answer 9

fully divided rachis with lobed pinna

Question 10

pinnate-pinnatifid

Answer 10

fully divided rachis with lobed pinna

Question 11

bipinnate

Answer 11

rachis and pinna are fully pinnate and pinna with entire margins

Question 12

bipinnate-pinnatifid

Answer 12

like bipinnate, except pinnules are lobed

Question 13

tripinnate

Answer 13

like bipinnate-pinnatifid, except pinnules fully divided to the midrib rather than lobed

Question 14

indusium

Answer 14

a thin protective coverng of hte sorus found in many spp

Question 15

macrophyte

Answer 15

spp that can easily be observed without magnification

Question 16

hydrophyte

Answer 16

spp adapted for growing in soil that is permanently or periodically saturated

Question 17

mesophyte

Answer 17

spp adapted for growing where moisture and aeration lie between extremes

Question 18

xerophyte

Answer 18

spp adapted for growing in dry areas where the roots withstand drying to the wilting threshold at frequent intervals

Question 19

obligate (OBL)

Answer 19

spp occur in wetlands >99% of the time

Question 20

facultative wetland (FACW)

Answer 20

occur in wetlands 67-99% (uplands 1-33%)

Question 21

facultative (FAC)

Answer 21

occur in wetlands and uplands equally (33-67%)

Question 22

facultative upland (FACU)

Answer 22

occur in wetlands 1-33% (upland 67-99%)

Question 23

upland (UPL)

Answer 23

occur in wetlands <1%

Question 24

tree stratum circular plot

Answer 24

30 foot radius, >3 in diam, >1 m

Question 25

sapling/shrub stratum circular plot

Answer 25

15 foot radius, <3 in diam, >1 m

Question 26

herb stratum circular plot

Answer 26

5 foot radius, < 1 m

Question 27

woody vine stratum circular plot

Answer 27

30 foot radius, >1 m

Question 28

4 indicators of hydrophytic vegetation

Answer 28

- rapid test for hydrophytic vegetation - dominance test - prevalence index - morpholigical adaptations

Question 29

def: extra roots growing from stems

Answer 29

adventitious roots

Question 30

def: roots growing near surface of soil in response to saturation

Answer 30

shallow root zone

Question 31

def: on stems or trunk in response to prolonged inundation or soil saturation (increases oxygen uptake)

Answer 31

hypertrophied lenticels

Question 32

def: woody plants with several trunks of different ages in response to inundation (saturation/little O2)

Answer 32

multitrunks

Question 33

50/20 rules

Answer 33

repeatable and objective procedure for selecting dominant plant spp (account for more than 50% of ttl coverage of vegetation in stratum or more than 20% of ttl)