VASOULAE PLAiSTTS OP OHIO 133 



31. Dryopteris thelypteris (L.) Gr. Marsh Shield-fern. General. 



32. Dryopteris cristata (L.) Gr. Crested Shield-fern. General. 

 32a. Dryopteris cristata x spinulosa. Wayne, Portage. 



32b. Dryopteris cristata x intermedia. (D. boottii (Tuck.) Und.). 

 Wayne, Geauga, Portage. 



33. Dryopteris clintoniana (Eat.) Dow. Wayne, Geauga. 

 33a. Dryopteris clintoniana X spinulosa. Wayne County. 



34. Dryopteris goldiana (Hook.) Gr. Goldie's Shield-fern. Eather 



general, but no specimens from the southern third of the 

 state, nor from the northwestern counties. 



35. Dryopteris intermedia (Muhl.) Gr. American Shield-fern. 



Rather general. 

 35a. Dryopteris intermedia x marginalis. Wayne County — Hopkins. 



36. Dryopteris spinulosa (Muell.) Ktz. Spinulose Shield-fern. Gen- 



eral. 



37. Dryopteris dilatata (Hoffm.) Gr. Spreading Shield-fern. Tus- 



carawas County. 



38. Dryopteris marginalis (L.) Gr. Marginal Shield-fern. General 



and common. 



39. Polystichum acrosticJioides (Mx.) Schott. Christmas-fern. Gen- 



eral. 

 39a. Polystichum aerostichoides schweinitzii (Beck) Small. Wayne 

 County. 



40. Dennstaedtia punetilobula (Mx.) Moore. Boulder-fern. In the 



southern and eastern parts of the state. (Erie County — 

 Moseley Herb.) 



41. Pilix bulbifera (L.) Und. Bulbiferous Bladder-fern. (Cys- 



topteris.) General, but no specimens from the northwest. 



42. Filix fragilis (L.) Und. Fragile Bladder-fern. General and 



common. 

 42a. Pilix fragilis magnasora (Clute). Tuscarawas County. 

 42b. Pilix fragilis cristata (Hopkins). Portage County. 



43. Woodsia obtusa (Spreng.) Torr. Blunt-lobed Woodsia. In the 



southern half of the state. 



44. Matteuccia struthiopteris (L.) Todaro. Ostrich-fern. Cuya- 



hoga, (Brie County — Moseley Herb.). 



45. Onoclea sensibilis L. Sensitive-fern. General and common. 



