We just had an animal post (below) and now some lovely ferns from reader Marilee Lovit:
These are ferns I collected last summer into my plant press, and now have mounted on herbarium paper (using methyl-cellulose for glue). I photographed the mounted specimens before attaching herbarium labels. (I will attach labels with all the collecting information before giving the specimens to an herbarium.)The genus Dryopteris has a lot of hybridization. The first photo is Dryopteris intermedia, which is diploid. The second photo is Dryopteris cristata, which is tetraploid. And the third is Dryopteris x boottii, a sterile triploid hybrid of the first two.
Here are 2 more ferns. Dryopteris carthusiana is a tetraploid.
It hybridizes with Dryopteris intermedia (diploid, photo above), and the result is a sterile triploid named Dryopteris x triploidea.
These several species of the genus Dryopteris were collected from one area in Maine. Another Dryopteris species occurs very nearby, Dryopteris campyloptera.