225 



the tree to eastern Pennsylvania, central and western New York, 

 and also to the middle West. It has apparently never been 

 found in New Jersey. What is the true range of this species, 

 which is certainly rare and local east of the Allegheny Mountains? 



Betulaceae, 



1. Car pinus car oliniana Walter. None of the numerous speci- 

 mens are from localities in the pine barrens, and the New Jersey 

 catalog excludes it from this region. How near to the pine- 

 barrens has the plant been found? Is it known from Burlington 

 Co.,N. J.? 



2. Cory'us rostrata Ait. So far as New Jersey is concerned 

 this shrub is not known south of the terminal moraine, although 

 specimens from Chester Co., Pa., bring it considerably south of 

 the glaciated region in that state. From where in New Jersey, 

 particularly in the south-central sections near Middlesex and 

 Mercer Counties, has the plant been collected? 



3. Betula papyrifera Marsh. Our specimens limit this species 

 to the country north of a point which is approximately the 

 northern state line of New Jersey, with two exceptions, Plainfield 

 and Elizabethport, N. J. These two New Jersey records bring 

 the plant much further south than its apparent distribution 

 center, which is in the Catskills, and the hill counties of Penn- 

 sylvania. Does the plant grow between these points? Has it 

 ever been found in Berks or Bucks Co., Pa.? 



4. Betu'a lutea Michx. Our only two specimens are from the 

 Catskills. Other records, for the most part substantiated by 

 specimens, credit the plant to Lehigh, Monroe, and Pike Counties 

 in Pennsylvania. Beyond this nothing seems to be known of its 

 distribution within the range. 



5. Betula piimila L. The flora of Pennsylvania, the Phila- 

 delphia catalog, and all our specimens exclude this plant from the 

 whole state of Pennsylvania. Several stations in northern New 

 Jersey and one in northwestern Connecticut complete our repre- 

 sentation of this species. The exclusion from the high mountain 

 parts of Pennsylvania and from the Catskills is almost incon- 

 ceivable. It should be found in many cold bogs in the glaciated 



