88 
The Ohio Naturalist. 
[Vol. X, No. 4, 
Aspidium marginale (L.) Marginal shield Fern. Common on 
ledges or on steep wooded hill sides and even low wet wood lands. 
Aspidium spinulosum intermedium. Muhl. Common in woods 
as well as in the deep ravines and on wet rocks of Mill Creek Park 
and similar situations along the Mahoning. Annoyingly various 
but nothing approaching specific types has yet been found. 
Cystopteris fagilis (L). Fragile Bladder Fern. As common 
in all situations as it is various in form. In low woods as well as 
on cliffs and rocks. 
Dicksonia punctilobula (Mx.) Hayscented Fern, Boulder 
Fern. This graceful delicate green fern may be considered 
quite common in this county, attaining perfection in rich 
shady woods as well as on wet shaded rocks and cliffs, in which 
last location like the Bladder Fern its fronds become much 
elongated and elegantly tapered. 
Onoclea sensibilis L. Sensitive Fern. Common in woods, 
thickets and pastures everywhere. Some seasons there appears 
a riot of that sportive so-called variety obtusilobata appearing to 
illustrate the evolution or intermarriage of sterile and fertile 
fronds. When they abound one season you search for them the 
following year in vain. 
Osmunda regalis L. Flowering Fern. Found to some extent 
in wet woods and swamps. 
Osmunda cinnamomea L. Cinnamon Fern. In swamps and 
wet pastures, though not common as in the tamarack bogs of 
some places in this corner of the state; a bog of this kind in 
Boardman Township having been destroyed. 
Osmunda claytoniana L. Not abundant, though it may be 
found generally distributed. 
Ophioglossum vulgatum (L). Adder’s Tongue. For this 
plant the writer has two stations in the county viz: Jackson 
Township, June 9, 1900, where it has not been rediscovered, and 
Ellsworth Township, June 13, 1909. This plant being so readily 
overlooked is doubtless more common than would seem. 
Botrychium obliquum Muhl. Grape Fern and var. dissectum. 
Their common form grows everywhere in •woods and pasture and 
spring together as if from a common root. 
Botrychium virginianum (L). More abundant than the last. 
The size attained depending upon the moist richness of the woods 
where heavy shade is a factor. 
With the exception of Asplenium angustifolium, Asplenium 
montanum, and Ophioglossum vulgatum, I have found all of the 
above in Mill Creek Park, and probably two of the three will yet 
be found there. 
Date of Publication, February 15, 1910. 
