We started the trip by spending a week in the Netherlands, based in Leiden. We visited the exceptional herbarium collections at the Naturalis Biodiversity Center, which houses collections from universities all over the Netherlands. Looking out over the collections from the second floor was like being in the warehouse at the end of Raiders of the Lost Ark:
In addition to sampling from material at the herbarium, we went on several field trips to collect fresh material from the field. Our host, Peter Hovenkamp, brought us to several beautiful sites in the northern part of the country, and we found a number of Dryopteris species, several of which are endemic to Europe and that I had never seen before.
|Our collecting team: Arjen de Groot, my husband/field assistant, me, Aino Juslén, Peter Hovenkamp|
|Finding our first big Dryopteris affinis!|
Some beautiful sori on several fertile species:
|Left: D. filix-mas, right: D. affinis. The indusium margins are a good way to tell them apart.|