| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
plant ecology reproductive behaviour life form, habit post-seedling development and form crown form and crown relations |
| Location: | Alaska |
| Description: | Crown form of paper birch. |
| Date: | 7/1976 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
plant ecology reproductive behaviour life form, habit post-seedling development and form |
| Location: | Alaska; Tanana; Tanacross |
| Description: | Old growth or over-mature white spruce near Tanacross. M. Mehl. |
| Date: | 7/1974 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
plant ecology ecosystems sexual reproduction reproductive behaviour |
| Location: | Alaska; Prince of Wales Island; Hollis |
| Description: | Pollen in bay at Hollis, taken from M/V Maybeso. |
| Date: | 6/19/1959 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
plant ecology ecosystems sexual reproduction reproductive behaviour |
| Location: | Alaska; Prince of Wales Island; Hollis |
| Description: | Pollen in bay at Hollis. View taken from M/V Maybeso. |
| Date: | 6/19/1959 |
| Collection: | Pacific Northwest Research Station, Alaska Image Archive |
| Keywords: |
plant ecology ecosystems reproductive behaviour life form, habit post-seedling development and form persistence or shedding of branches self-pruning epicormics |
| Location: | Alaska; Prince of Wales Island; Karta Bay |
| Description: | Epicormic branching on spruce. Thinned plot, Karta Bay. |
| Date: | 1956 |