Nov., 1904.] Notes on the Ohio Ferns. 207 



herbarium under that name. It resembles Asplenium piaty- 

 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). 



The following is a list of the Ohio ferns represented in the 

 State Herbarium, with their distribution by counties. 



Ophioglossum vulgatum L., Adder's-tongue. — Auglaize, 

 Clark, Cuyahoga, Franklin, Lake, Lucas, Portage, Warren. 



Botrychium matricarIv^fglium a. Br., Grape-fern. — Cuy- 

 ahoga. 



Botrychium obliquum Muhl., {Botrychiwm ternatuni obli- 

 quuni) Grape-fern.- — Ashtabula, Auglaize, Clermont, Cuyahoga, 

 Fairfield, Franklin, Logan, Lucas, Paulding, Sandusky, Scioto, 

 Stark, Warren, Wyandot. 



Botrychium dissectum Spreng., (Botrychium ternatuni dis- 

 sectimi) 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., Flowering-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, Morrow, Noble, Wayne, Wood. 



