246 Muhlenberg's observations on the 



6. 'Juglam glabra. To this belong at least three 

 varieties, all possibly distinct species :* 



a. A very lofty tree, with bark rather ridged, 

 thick branches, and very small nuts, easily cracked. 

 Leaflets five, sometimes seven, with both surfaces 

 smooth. J. glabra Wangenh. comes nearest to 

 it. In this part of the country it is known by the 

 name of the red Hickery, a great part of the inside 

 of the wood being red. It is also called Pigent. 



b. A variety with exactly oval nuts, and like- 

 wise easily cracked. They do 'not seem to vary in 

 any other respect. The lower surface of the 

 leaves in both species are furnished with many 

 yellow resinous points, whence the specie name 

 of odorata given to it by Marshall. — It seems 

 to be J. ovalis "Wangenh. 



c. Perhaps more than a mere variety, being a 

 tall tree with smooth bark and slender branches. 

 Known in - this neighbourhood by the names of 

 Besen-Hickery, Lkrz-Hickery, (Broom H., HearrH.) 

 Leaflets from five to six, quite smooth. Nut ob- 



* \. glalra: foliolis septenis ovatJs acuminatis utrinque glabris subtue 

 resinoso pullctatis, nucibus oblongis. 



