On Trees and Relationships
I have a ginkgo tree in my front yard. It was not my doing; it came with the house. If you’re not familiar with this type, it’s sometimes referred to as the maidenhair tree. The only surviving species in the division Ginkgophyta, it goes back at least 270 million years (https://en.wikipedia.org/wiki/Ginkgo_biloba). The probable reason there is
