150
M.T.K. Arroyo et al.
Table 8.2. Life Forms in the Temperate Rainforest Flora of Southern South
America
Life-Form
Fam.
Gen .
Spp.
Spp. per Genus
Mean
S.d.
Range
ENTIRE RAINFOREST AREA (N = 443)
Total woody
50
82
160
1.95
1.99
1-11
Trees
20
32
44
1.38
1.11
1-7
Shrubs
25
35
81
2.31
2.34
1-10
Vines, climbing,
12
17
22
1.29
0.57
1-3
shrubs!
Hemiparasites
3
6
13
2.17
2.61
1-8
Total herbaceous
55
128
283
2.21
2.51
1-19
Climbers
5
5
9
1.80
1.17
1-4
Epiphytes
8
14
31
2.21
3.32
1-14
Ground herbs
50
116
243
2.10
2.11
1-13
NONSEASONALRAINFOREST (N = 249)
Total woody
45
67
110
1.64
1.28
1-6
Trees
18
27
37
1.37
0.87
1-5
Shrubs
18
24
47
1.96
1.62
1-6
Vines, climbing,
11
15
19
1.27
0.57
1-3
shrubs !
Hemiparasites
3
5
7
1.4
0.80
1-3
Total herbaceous
41
77
139
1.81
2.24
1-18
Climbers
2
2
2
1.00
Epiphytes
6
11
27
2.46
3.70
1-14
Ground herbs
37
67
110
1.64
1.35
1-8
1 Includes one woody epiphyte .
36°S, this number increases to more than 2000 (Arroyo, unpublished
data). For the general floristic region (excluding Patagonian steppe),
there are additional species in the drier forest zone on the eastern side of
Table 8.3. Taxonomic Composition of the Vascular Plant Flora of Southern
South American Temperate Rainforest
Group
Fam.
Gen .
Spp.
Species per Genus
Mean
S.d.
Range
Angiosperms
Dicotyledons
Monocotyledons
Gymnosperms
Pteridophytes
Total
81
68
13
3
12
96
175
133
42
7
23
205
369
275
94
8
66
443
2.11
2.07
2.24
1.14
2.87
2.16
2.13
2.06
2.33
0.35
4.00
2.40
1-13
1-12
1-13
1-2
1-19
1-19