Thin green frond of Hymenophyllum showing a clam shaped sorus containing spherical sporangium.
A delicate Trichomanes frond showing bell shaped involucria
Pinnules with immersed involucria and long trichomes.
A frond being held up with two people in the background.
A great #FernFriday today. Spent the day at the World Museum in Liverpool identifying our filmy ferns from #Honduras. #BritishPteridologicalSociety #EdgeHillUniversity