Fern Trips IN VIRGINIA 109 
PELLAEA ATROPURPUREA. This fern was found in 
two places only, about three miles apart, and in each 
locality there were only a few plants, and these were 
dwarfed and in poor condition. 
ASPLENIUM TRICHOMANES. Common. 
ASPLENIUM PLATYNEURON. Common. 
ASPLENIUM BrapDLeEyI. Near the top of one of the 
smaller ridges, a colony of some seven or eight plants 
was found. They were facing the east, and in a rather 
exposed position. In spite of their small size, they 
seemed to be thriving very well indeed. 
ASPLENIUM MONTANUM. It would be difficult to per- 
suade a resident of Rock Enon that this is one of our 
rarer ferns. For miles along the Catamount ridge, it 
is to be found on almost every boulder, in almost every 
crevice. There are positively hundreds of plants. 
Many fronds seven inches in length were observed. 
Numerous plants had upwards of twenty-five fronds 
on them. Perhaps the most interesting plants were 
observed on the summit of Pinnacle, the highest point 
in the vicinity, 2800 feet above sea level. There were 
only a few plants, so stunted by exposure that one 
could scarcely believe them to-be identical with the 
luxuriant plants to be found in the valley. This one 
fern would in itself justify the trip; in fact, our main 
reason for going to Rock Enon was to see it, for Dr. 
Waters had told us that it was abundant in this place. 
ASPLENIUM THELYPTEROIDES (A. acrostichoides). 
Common. 
ASPLENIUM FILIX-FOEMINA. Common. 
POLYSTICHUM ACROSTICHOIDES. Common. 
Dryopteris THELYPTERIS. Not common. 
DRYOPTERIS NOVEBORACENSIS. aaa 
DRYOPTERIS MARGINALIS. Comm 
DRYOPTERIS SPINULOSA. Fairly common. 
DRYOPTERIS SPINULOSA, Var. DILATATA. Only one 
Plant was seen, and this during our last excursion, and 
