Fragrant Fern. _Aspidium fragrans_
Marginal Shield Fern. _Aspidium marginale_
Crown of Fronds of _Aspidium marginale_
Sori of _Aspidium marginale_
Male Fern. _Aspidium Filix-mas_
_Aspidium Filix-mas_ and details
Goldie's Shield Fern. _Aspidium Goldianum_
_Aspidium Goldianum_, in the mass
Crested Shield Fern. _Aspidium cristatum_
Crested Shield Fern. _Aspidium cristatum_ (No. 2)
Clinton's Shield Fern. _Aspidium cristatum_ var. _Clintonianum_
Crested Marginal Fern. _Aspidium cristatum × marginale_
_Aspidium cristatum × marginale_, in the mass
Boott's Shield Fern. _Aspidium Boottii_
Spinulose Shield Fern. _Aspidium spinulosum_
_Aspidium spinulosum_ var. _intermedium_
_Aspidium spinulosum_ var. _americanum_
Bulblet Bladder Fern. _Cystopteris bulbifera_
_Cystopteris bulbifera_ with sprouting bulb
Fragile Bladder Fern. _Cystopteris fragilis_
Rusty Woodsia. _Woodsia ilvensis_
Northern Woodsia. _Woodsia alpina_
Details of Alpine Woodsia
Blunt-lobed Woodsia. _Woodsia obtusa_
Smooth Woodsia. _Woodsia glabella_
Hayscented Fern. _Dennstædtia punctilobula_
Forked variety of _Dennstædtia punctilobula_
Field View of _Dennstædtia punctilobula_
Pinnæ and Sori of _Dennstædtia punctilobula_
Meadow View of Sensitive Fern