87 
the quarry property were several large and ancient box shrubs, 
at least a century old. The party crossed the various formations 
rather sharply defined on the surface by fault boundaries, one of 
which, between the gneiss and sandstone and limestone, is the 
great fault, the Logan Line, which crosses New Jersey at the 
eastern border of the older rocks, but noted no apparent differ- 
ences in tree flora, although it was obvious that the farmers had 
chosen the limestone areas for their plowlands, and left the forest 
on the gneiss and quartzite; or else that the trees had retaken 
the older rocks while the limestone areas remained in fields and 
pasture. Mrs. Anderson promises a field excursion for the club 
sometime to be devoted to ecological effects of geological forma- 
tions on the occurrence of lichen species. The party made the trip, 
which was held jointly with the New York section of the Green 
Mountain Club, in automobiles, ten cars, with about forty persons, 
ten members of the Torrey Botanical Club, seventeen of the 
Green Mountain Club and the rest guests of both. One interesting 
and beautiful moss was noted, Bartramia pomiformis, with cap- 
sules persistent from the previous season, dry and withered, but 
still showing the pretty fluted urn shape. 
Raymonp H. TORREY 
FreLD Trip oF SUNDAY, MARCH 29 
The special quest of this early spring outing into the heart of 
the New Jersey Pine Barrens was to find Conrad’s broom crow- 
berry in blossom. The particular location chosen to find this rare 
plant was the place discovered by Dr. John Torrey about ninety 
years ago. Subsequently the stand was lost, and rediscovered by 
r. N. L. Britton and Witmer Stone fifty years later. In an article 
Published in the N. Y. Evening Post, describing this crowberry, 
Mr. Raymond H. Torrey states “A strange location for such a 
sub-arctic plant, a relic of the last ice period, thriving in these hot 
sands 40,000 years after the glaciers that drove it south melted 
away. Not beautiful, except under the hand lens, but a sturdy 
Survivor of ancient plant associations, many of the former ele- 
ments of which have migrated northward and no longer exist ın 
the region,” 
The crowberry was not in general flower, the season being 
about one week later than usual, but a few sprays were found in 
lower. Arbutus and the characteristic Pine Barrens plant pyxt¢ 
