1915]  Pretz,—Antennaria canadensis in Pennsylvania 127 
Associated with it in the same field were A. fallax Greene, A. neodioica 
Greene, A. neglecta Greene and A. Parlinii Fernald. The elevation 
of this field according to Mr. W. B. Tombler, City Engineer of East 
Mauch Chunk, is 829.5 feet. 
From this point a single road leads gradually up the steep escarp- 
ment to the plateau. This road crosses the plateau and finally 
reaches the * Poconos," passing several places where there are farms 
or clearings. Other roads branch off in different directions. "The 
roadsides and clearings in the vicinity of these farms offer the most 
favorable habitats for Antennarias, for commonly a rather dense scrub 
association closely borders the roads. 
There were few Antennarias seen on the trip of several miles across 
the plateau past the clearings but in the vicinity of the Behrens Farm 
where the original collection was made, two small mats of 44. cana- 
densis were found less than 3 mile apart. The elevation of the plateau 
at this point is approximately 1600 feet. Shrubby vegetation was 
coming into leaf in the valley near East Mauch Chunk, but was less 
advanced on the plateau, and Mr. Long observed that the Scrub Oak 
here was advanced in seasonal growth about as far as the same species 
on the New Jersey coastal plain noted by him a month previous. 
Though the rest of the day was pleasantly spent in the region no more 
A. canadensis was seen. 
Since this trip was made the writer has crossed Broad Mountain 
but no A. canadensis was discovered though it was looked for. At 
one place only along the “pike” over Broad Mountain, extending 
from near Mauch Chunk to Hudsondale, A. neodioica was seen. 
This species was seen also along the railroad near Hudsondale. Rain 
unfortunately prevented the thorough examination of some promising 
areas near Weatherly, and in crossing them only A. neodioica was seen. 
Other brief excursions have been made into the higher mountains 
further north by northwest, but no A. canadensis has been discovered. 
Possibly, as Mr. Long suggests, the lower, rather than the higher, 
slopes of the Alleghanies may prove to be the more favorable habitats. 
In the writer's own county of Lehigh, Pennsylvania, Antennarias 
are frequent to abundant. Although plants referred to 4. petaloidea 
and A. occidentalis, both of northern distribution, have been collected, 
no A. canadensis has been discovered although it has been diligently 
looked for. The occurrence of A. petaloidea is based upon a single 
collection in the upper Perkiomen Valley in the vicinity of the South 
