A key for the identification of stomata of the native conifers of Scandinavia

In Scandinavia there are four extant native conifers (Pinus sylvestris, Picea abies, Juniperus communis and Taxus baccata). Larix sibirica has been found as a Holocene fossil in the mountains of central Scandinavia, and as an earlier interglacial fossil. Abies alba may have occurred earlier in the Q...