266 KERN: BERBERIS VULGARIS IN PENNSYLVANIA 
interested. County agricultural agents often knew the persons 
in their counties who made botanical collections or observations. 
Curators of museums, custodians of historical societies, foresters 
and fire wardens were usually interested themselves or had knowl- 
edge of the persons who were. Thus our list grew. 
The following lists present in detail the localities where Berberis 
vulgaris has been found growing wild. Altogether the literature 
and herbarium specimens mention nineteen localities in fourteen 
different counties. In our work we were able to verify the 
existence of barberry in 1919 in only two of these stations. Not 
all of the nineteen were investigated. In spite of specific directions 
and suggestions we found it impossible to relocate some of the 
stations. In other cases it is entirely probable that a single bush 
or two may have formed the basis of the original report and that 
they had disappeared prior to our investigation. Fourteen new 
localities are here reported, involving ten counties. 
LOCALITIES MENTIONED IN THE LITERATURE 
Bucks County: Bensalem, J. C. Martindale; near Jericho 
Hill, Dr. E. Newlin Williams; Doylestown, Professor A. S. Martin 
(Fretz, Flora of Bucks County [Appendix to a county history ?], 
1905). 
FRANKLIN County: locality not given (Porter, Flora of Penn- 
sylvania, 1903). 
LACKAWANNA County: west of Archbald (Dudley & Thurston, 
Flora of Lackawanna and Wyoming Valleys, 1892); near Waverly 
and Wallsville (Twining, Flora of Northeastern Pennsylvania, 
1917). 
LUZERNE COUNTY: swamp, near Kingston (Dudley & Thurs- 
ton, /.c.). 
NORTHAMPTON County: locality not given (Porter, /.c.). 
‘PHILADELPHIA County: Germantown, E. C. Jellett (Handbook 
of the Flora of Philadelphia and vicinity). 
SUSQUEHANNA County: locality not given (Porter, 1.c.) 
LOCALITIES MENTIONED. ON HERBARIUM SPECIMENS* 
Berks County: half mile south of Fleetwood, August 27, 
1915, W. H. Leibelsperger (Acad.). 
_* The following abbreviations are used in this list: Acad., for Philadelphia 
Academy of Sciences; C. M., for Carnegie Museum, Pittsburgh; U. of P., for Uni- 
versity of Pennsylvania, Philadelphia. 
