ARGUABLY the world’s weirdest plant, Welwitschia mirabilis is a tangled mass of shredded, fraying leaves in the Namib desert. For a thousand years, perhaps more, it grows just two long leaves, which ...
Gymnosperms, one of the major lineages of extant seed plants, encompass conifers, cycads, Ginkgo and gnetophytes. Recent decades have seen the integration of diverse data streams—morphological ...