| Order | Family | Genus (# of species) | Distribution | 
| GINKGOALES | GINKGOACEAE |  | China | 
| TAXALES | TAXACEAE | Taxus (10)
Amentotaxus (5)
Austrotaxus (1)
Pseudotaxus (1)
Torreya (6)
 | NORTHERN China, Taiwan, India
 New Caledonia
 China
 China, Japan, USA
 | 
| CEPHALOTAXACEAE |  | China, Taiwan, Japan | 
| CONIFERALES | SCIADOPITYACEAE |  | Japan | 
| TAXODIACEAE | Athrotaxis (3)
Cryptomeria (2)
Cunninghamia (2)
Glyptostrobus (1)
Metasequoia (1)
Sequoia (1)
Sequoiadendron (1)
Taiwania (2)
Taxodium (3)
 | Tasmania China, Taiwan, Japan
 China, Taiwan
 China
 China
 California, Oregon
 California
 China, Taiwan
 USA, Mexico
 | 
| CUPRESSACEAE | 
Callitris (20)
Calocedrus (4)
Chamaecyparis (7)
Cupressus (37)
Fitzroya (2)
Juniperus (60)
Libocedrus (8)
Platycladus (2)
Tetraclinis (1)
Thuja (5)
Thujopsis (1)
Widdringtonia (4) | 
Australia, New Caledonia
Vietnam, China, USA
China, Japan, USA
NORTHERN
Chile, Argentina, Tasmania
NORTHERN
SOUTHERN
China, Russia
Mediterranea
NORTHERN
Japan
Southern Africa | 
| PINACEAE | 
Abies (~50)
Cathaya (1)
Cedrus (4)
Keteleeria (3)
Larix (14)
Nothotsuga (1)
Picea (~35)
Pinus (~110)
Pseudolarix (1)
Pseudotsuga (8)
Tsuga (10) | NORTHERN China
 Mediterranea, Himalaya
 China
 NORTHERN
 China
 NORTHERN
 NORTHERN
 China
 NORTHERN
 NORTHERN
 | 
| ARAUCARIACEAE | Agathis (20)
Araucaria (20)
Wollemia (1)
 | SOUTHERN SOUTHERN
 Australia
 | 
| PODOCARPACEAE | Acmopyle (2)
                  Afrocarpus (6)
                  Dacrycarpus (9)
                  Dacrydium (30)
                  Falcatifolium (5)
                  Halocarpus (3)
                  Lagarostrobus (1)
                  Lepidothamnus (3)
                  Manoao (1)
                  Microcachrys (1)
                  Microstrobos (2)
                  Nageia (5)
                  Parasitaxus (1)
                  Podocarpus (~100)
                  Prumnopitys (10)
                  Retrophyllum (5)
                  Saxegothaea (1)
                  Sundacarpus (1)
 | New Caledonia, Fiji Africa
 TROPICAL
 SE Asia, Oceania
 TROPICAL
 New Zealand
 Tasmania
 New Zealand, Chile
 New Zealand
 Tasmania
 Australia
 SE Asia
 New Caledonia
 SOUTHERN-TROPICAL
 SOUTHERN
 TROPICAL
 Chile, Argentina
 New Caledonia
 | 
| PHYLLOCLADACEAE |  | Tasmania, New Zealand | 
| CYCADALES | CYCADACEAE |  | These Families 
 are not represented
 
 in the
Arboretum
 | 
| STANGERIACEAE |  | 
| ZAMIACEAE | 
Lepidozamia
Macrozamia
Bowenia
Encephalartos
Dioon
Microcycas
Ceratozamia
Zamia | 
| GNETALES | GNETACEAE |  | 
| EPHEDRACEAE |  | 
| WELWITSCHIACEAE |  | SW Africa |