Nov., 1904.] 
Notes on the Ohio Ferns. 
207 
herbariuin tinder that name. It resembles Asplenium platy- 
neuron (L.) Oakes more closely but the three species are easily 
separated by the following characters. A. trichomanes has short 
rounded pinnae almost or quite as broad as long, without a def- 
inite mid-vein, and without an auricle on the upper side near the 
base? A. platyneuron and A. parvulum have oblong pinnae, auri- 
cled at the base, and with a definite mid- vein. In the former 
the pinnae are mostly alternate, the rachis brown; in A. par- 
vulum the pinnae opposite and the rachis black. This fern, 
which is here reported for the first time from Ohio, is said to grow 
upon limestone, and ranges from Virginia to southern Ohio and 
Missouri, and south to the Gulf. 
Specimens in the State Herbarium (Sept., 1904). 
‘ t 
The following is! a list of the Ohio ferns represented in the 
State Herbarium, with their distribution by counties. 
Ophioglossum VULGATU.M L., Adder’s-tongue. — Auglaize, 
Clark, Cuyahoga, Franklin, Lake, Lucas, Portage, Warren. 
Botrychium matricari^folium a. Br., Grape-fern. — Cuy- 
ahoga. 
Botrychium obliquum Muhl., {Botrychium ternatum ohli- 
quuni) Grape-fern. — Ashtabula, Auglaize, Clermont, Cuyahoga, 
Fairfield, Franklin, Logan, Lucas, Paulding, Sandusky, Scioto, 
Stark, Warren, Wyandot. 
Botrychium dissectum Spreng., {Botrychium ternatum dis- 
sectum) Grape-fern. — Auglaize, Clermont, Defiance, Delaware, 
Fairfield, Franklin, Lake, Logan, Sandusky, Williams, Wyandot. 
Botrychium lunaria (L.) Sw., Grape-fern. — Lake. 
Botrychium lanceolatum (S. G. Gmel.) Angs., Grape-fern. 
— Portage. 
Botrychium virginianum (L.) Sw., Grape-fern. — Auglaize, 
Belmont, Brown, Clark, Clermont, Clinton, Cuyahoga, Defiance, 
Delaware, Fairfield, Franklin, Fulton, Greene, Hamilton, Hardin, 
Lawrence, Lucas, Madison, Medina, Montgomery, Morrow, Ottawa, 
Portage, Preble, Richland, Sandusky, Trumbull, Tuscarawas, 
Warren, Wayne, Wyandot. 
Osmunda regalis L., Flow^ering-fern. — Ashtabula, Clermont, 
Clinton, Defiance, Fairfield, Fulton, Hamilton, Hardin, Huron, 
Lake, Licking, Logan, Lorain, Paulding, Sandusky, Seneca, 
Stark, Summit, Warren, Wayne, Williams, Wood. 
Osmunda cinnamomea L., Cinnamon-fern. — Ashtabula, Aug- 
laize, Champaign, Defiance, Erie, Fairfield, Gallia, Knox, Licking, 
Lorain, Lucas, Paulding, Richmond, Sandusky, Stark, Summit, 
Wayne, Williams, Wyandot. 
Osmunda claytoniana L., Clayton’s Fern. — Adams, Ashta- 
bula, Belmont, Carroll, Defiance, Fairfield, Fulton, Hamilton, 
Hocking, Knox, Lake, Licking, Morrowq Noble, Wayne, Wood. 
