56 Pretz: FLtorA or LeniGgH COUNTY, PENNSYLVANIA 
Creek in Dorney’s Park, March 19, 1910, 2324. Along the Jordan, 
134 miles northwest of Kernsville, November 6, I910, 3701. 
Along the Little Lehigh, 13< miles northwest of Emaus, December 
22, 1907; November 24, 1910, 3137. 
All occur on limestone with the exception of 3z01, which was 
collected on shale. 
As far as the writer has been able to ascertain, no less than 25 
specimens of this fern have been collected in the county. The 
reader scarcely needs to be reminded of the abundance of the 
putative parent species of this hybrid in association in the county. 
These specimens have come from 7 stations, a station being defined 
for the purposes of this statement as some isolated area, wooded 
or not, separated by cultivated land from an adjacent station. 
Thus plants were taken at Helfrich’s Springs at two places about 
one-third mile apart. No station as conceived by the writer is 
nearer to any other station than one-half mile. Of 6 plants left 
in the field, not included with the 25, 3 are known to have disap- 
peared. All but 6 of the specimens noted are or have been a part 
of the writer’s herbarium and represent all of the stations. Credit 
for finding a number of these is due to E. S. and W. Mattern, who 
have frequently been the writer’s field companions. Some ob- 
servations of interest with reference to this species have been made 
by the writer but would prove too lengthy for the purposes of 
this list. : , 
ASPLENIUM MONTANUM Willd. 
On rocks of Hardyston sandstone, southwest of Mountain- 
ville, on the South Mountains, Idlewild, 1872, Krout; January 25, 
1908, 1073. On “‘shale” along the Jordan Creek, 114 miles west 
to northwest of Kernsville, November 6, 1910, 3095. 
In fair abundance at both stations. Growing well shaded at 
both stations but less luxuriant at the first named than at the 
second, where fronds 17 cm. (8+9) long and 4.5 cm. wide have 
been collected and represent maximum luxuriance. Can be col- 
lected in July with old fronds still in good condition and new fronds 
starting to fruit but is in best condition in late fall. Evergreen. 
The recorded stations for this species in New Jersey and Penn- 
sylvania, limiting the southwest extension of the species from the 
mountains, are Delaware Water Gap in New Jersey, and in Penn- 
