When I started my studies, we had a tour of the hortus of our university. A retired taxonomist gave us the tour, and was lamenting how genetic research had chan

When I started my studies, we had a tour of the hortus of our university. A retired taxonomist gave us the tour, and was lamenting how genetic research had changed quite a bit of the taxonomy of his gardens, and that the old art of careful observation and encyclopedic knowledge of the appearance of plants was lost on his successors.