The International Union for Conservation of Nature (IUCN) maintains a “Red List” of endangered flora and fauna throughout the world, which is updated continually. There will be some disagreement about the identity of these plants in some cases, especially the designation of subspecies (which the IUCN has omitted from their lists). These lists pertain only to the species in their natural range and most of theses are in no danger of being lost completely because they have been extensively cultivated in many sites elsewhere. Thanks to horticulturists!
According to Aljos Farjon, who is chairman of the IUCN’s Conifer Group Red List, 35% of conifer species are in the category of vulnerable, threatened or critically threatened (in 1996) (Aljos farjon, A Natural History of Conifers, Timber Press, 2008). The following lists of Endangered and Critically Endangered Species was compiled in the latter half of 2009 and down loaded into the IUCN Red List website on January 18, 2010. http://www.iucnredlist.org/apps/redlist/search
Those species found in any of our three Pinetum Units (including our nurseries) are underlined.
CRITICALLY ENDANGERED
1. Abies beshanzuensis
2. Abies nebrodensis
3. Abies yuanbaoshanensis
4. Abies ziyuanensis
5. Amentotaxus formosana
6. Araucaria angustifolia
7. Araucaria nemorosa
8. Cupressus dupreziana
9. Dacrydium guillauminii
10. Juniperus bermudiana
11. Juniperus gracilior
12. Metasequoia glyptostroboides
13. Picea martinezii
14. Pinus squamata
15. Podocarpus palawanensis
16. Podocarpus perrieri
17. Taxus floridana
18. Thuja standishii
19. Torreya taxifolia
20. Wollemia nobilis
21. Xanthocyparis vietnamensis
ENDANGERED
1. Abies fanjiingshanensis
2. Acmopyle sahniana
3. Amenatotaxus yunnanensis
4. Amentotaxus hatuyensis
5. Araucaria luxurians
6. Araucaria rulei
7. Araucaria schmidii
8. Araucaria scopulorum
9. Callitris sulcata
10. Cephalotaxus hainanensis
11. Chamaecyparis formosensis
12. Cupressus abramsiana
13. Dacrydium comosum
14. Dacrydium nausoriense
15. Fitzroya cupressoides
16. Glyptostrobus pensilis
17. Juniperus cedrus
18. Juniperus gracilior
19. Juniperus jaliscana
20. Juniperus standleyi
21. Libocedrus chevalieri
22. Microstrobos fitzgeraldii
23. Nothotsuga longbracteata
24. Picea aurantica
25. Picea chihuahuana
26. Picea farreri
27. Picea koyamae
28. Picea neoveitchii
29. Pinus amamiana
30. Pinus armandii
31. Pinus culminicola
32. Pinus maximartinezii
33. Pinus rzedowskii
34. Pinus wangii
35. Podocarpus angustifolius
36. Podocarpus capuronii
37. Podocarpus costalis
38. Podocarpus globus
39. Podocarpus hispaniolensis
40. Podocarpus humbertii
41. Podocarpus laubenfelsii
42. Podocarpus longifoliolatus
43. Podocarpus nakaii
44. Podocarpus pendulifolius
45. Podocarpus rostratus
46. Pseudotaxus chienii
47. Retrophyllum minor
48. Torreya jackii
49. Widdringtonia cedarbergensis
50. Widdringtonia whytei