Biology, Uses and Conservation of Trillium govanianum
239
Table 1
Reproductive characteristics of some Trillium
species (Ohara 1989)
Species
Ploidy level N
Biomass (g) No. of
ovules/flower
No. of
seeds/plant
Estimated seed
setting rate
Reproductive
allocation
Single seed
weight (mg)
Vegetative reproduction absent
T. tschonoskii
4X
101 4.2
± 1.3
153.8
± 31.1
79.8
± 33.0
51.8
8.3
± 2.0
3.4
± 0.3
T. camschatcense
2X
50 4.3
± 1.6
225.1
± 39.8
136.8
± 32.7
60.7
8.4
± 2.0
2.9
± 0.3
T. apetalon
4X
22 4.6
± 1.4
156.0
± 27.9
139.4
± 49.6
89.3
4.9
± 1.8
3.4
± 0.8
T. smallii
6X
49 8.1
± 1.9
216.1
± 42.1
113.0
± 30.9
52.2
8.4
± 2.4
4.4
± 0.5
Vegetative reproduction rare
T. grandiflorum
2X
29 4.4
± 2.1
38.4
± 11.1
26.0
± 17.9
67.7
6.0
± 2.2
6.4
± 0.8
T. erectum
2X
25 6.9
± 4.0
105.1
± 29.2
80.3
± 78.8
76.4
8.4
± 2.3
5.0
± 0.6
T. undulatum
2X
26 3.4
± 2.3
34.2
± 3.2
29.2
± 22.9
85.3
4.7
± 1.6
4.1
± 0.3
T. nivale
2X
8 0.5
± 0.1
27.3
± 8.9
14.3
± 5.2
64.1
9.6
± 1.8
2.7
± 0.6
T. catesbaei
2X
22 2.6
± 1.7
53.2
± 11.2
16.1
± 8.8
30.2
4.8
± 1.2
3.1
± 0.5
T. vaseyi
2X
19 9.5
± 3.8
41.2
± 5.0
18.5
± 15.9
44.9
2.0
± 0.6
3.0
± 0.4
T. flexipes
2X
22 6.7
± 3.3
128.7
± 43.0
43.9
± 22.5
34.1
6.3
± 2.3
4.2
± 0.7
T. sessile
2X
36 2.6
± 1.0
124.9
± 7.9
33.1
± 16.2
26.5
11.2
± 4.1
7.8
± 1.3
T. cuneatum
2X
29 6.8
± 2.4
160.3
± 56.8
47.7
± 20.5
29.7
3.7
± 1.3
4.0
± 0.4
T. discolor
2X
22 2.9
± 0.8
44.0
± 8.4
21.0
± 9.0
47.7
4.1
± 1.4
3.6
± 0.3
Vegetative reproduction occasional
T. luteum
2X
28 5.7
± 1.8
47.3
± 6.4
32.2
± 11.8
68.0
3.1
± 1.0
3.5
± 0.6
T. viridescens
2X
28 3.0
± 1.2
111.1
± 27.9
26.0
± 13.3
23.4
9.0
± 4.0
6.8
± 0.8
T. viride
2X
21 3.2
± 0.9
67.6
± 15.1
18.5
± 11.8
27.3
6.6
± 3.0
5.7
± 0.8
T. underwoodii
2X
3 2.4
± 0.4
75.8
± 15.7
20.7
± 13.6
27.3
12.0
± 5.0
10.2
± 1.5
(continued)
239
Table 1
Reproductive characteristics of some Trillium
species (Ohara 1989)
Species
Ploidy level N
Biomass (g) No. of
ovules/flower
No. of
seeds/plant
Estimated seed
setting rate
Reproductive
allocation
Single seed
weight (mg)
Vegetative reproduction absent
T. tschonoskii
4X
101 4.2
± 1.3
153.8
± 31.1
79.8
± 33.0
51.8
8.3
± 2.0
3.4
± 0.3
T. camschatcense
2X
50 4.3
± 1.6
225.1
± 39.8
136.8
± 32.7
60.7
8.4
± 2.0
2.9
± 0.3
T. apetalon
4X
22 4.6
± 1.4
156.0
± 27.9
139.4
± 49.6
89.3
4.9
± 1.8
3.4
± 0.8
T. smallii
6X
49 8.1
± 1.9
216.1
± 42.1
113.0
± 30.9
52.2
8.4
± 2.4
4.4
± 0.5
Vegetative reproduction rare
T. grandiflorum
2X
29 4.4
± 2.1
38.4
± 11.1
26.0
± 17.9
67.7
6.0
± 2.2
6.4
± 0.8
T. erectum
2X
25 6.9
± 4.0
105.1
± 29.2
80.3
± 78.8
76.4
8.4
± 2.3
5.0
± 0.6
T. undulatum
2X
26 3.4
± 2.3
34.2
± 3.2
29.2
± 22.9
85.3
4.7
± 1.6
4.1
± 0.3
T. nivale
2X
8 0.5
± 0.1
27.3
± 8.9
14.3
± 5.2
64.1
9.6
± 1.8
2.7
± 0.6
T. catesbaei
2X
22 2.6
± 1.7
53.2
± 11.2
16.1
± 8.8
30.2
4.8
± 1.2
3.1
± 0.5
T. vaseyi
2X
19 9.5
± 3.8
41.2
± 5.0
18.5
± 15.9
44.9
2.0
± 0.6
3.0
± 0.4
T. flexipes
2X
22 6.7
± 3.3
128.7
± 43.0
43.9
± 22.5
34.1
6.3
± 2.3
4.2
± 0.7
T. sessile
2X
36 2.6
± 1.0
124.9
± 7.9
33.1
± 16.2
26.5
11.2
± 4.1
7.8
± 1.3
T. cuneatum
2X
29 6.8
± 2.4
160.3
± 56.8
47.7
± 20.5
29.7
3.7
± 1.3
4.0
± 0.4
T. discolor
2X
22 2.9
± 0.8
44.0
± 8.4
21.0
± 9.0
47.7
4.1
± 1.4
3.6
± 0.3
Vegetative reproduction occasional
T. luteum
2X
28 5.7
± 1.8
47.3
± 6.4
32.2
± 11.8
68.0
3.1
± 1.0
3.5
± 0.6
T. viridescens
2X
28 3.0
± 1.2
111.1
± 27.9
26.0
± 13.3
23.4
9.0
± 4.0
6.8
± 0.8
T. viride
2X
21 3.2
± 0.9
67.6
± 15.1
18.5
± 11.8
27.3
6.6
± 3.0
5.7
± 0.8
T. underwoodii
2X
3 2.4
± 0.4
75.8
± 15.7
20.7
± 13.6
27.3
12.0
± 5.0
10.2
± 1.5
(continued)