Dryopteris ×neowherryi is a hybrid between D. goldiana and D. marginalis.

Dryopteris ×neowherryi is a hybrid between D. goldiana and D. marginalis.
I have always wondered how Acrostichum establishes in aquatic or semi-aquatic habitats. In the mangrove forest of the Sungei Buloh nature reserve in Singapore, I observed that the gametophytes of Acrostichum speciosum were establishing on soil mounds produced by mud...
Another beautiful cultivated species that I saw during my short trip to California. Bommeria is characterized by pedate, pentagonal laminae with sporangia spreading along free veins. The indument of the upper surface consists of many unicellular hairs. The genus has...
Very nice – the medial position of the sori is killer for this hybrid.
Is this the plant from Duffy’s Swamp?
No, this is the plant that Art Gilman showed us.
Beautiful hybrid! Very rare in nature, I presume. By the way, do you know if David still has copies of “Henry Potter’s field guide to the hybrid ferns of NE”? I would like to buy one…
They are available from the Tryon Pteridophyte Library http://www.uvm.edu/~plantbio/pringle/Libraries.html
Thanks for the link! I will buy it tonight. That website is amazing, btw… I loved that photo of the Tryons in their early days. I also enjoyed reading about Cyrus Pringle (what a beard!) and the profiles of important collections at VT.