GENERA JUGLANS, IRAX1NUS, &C. 247 



cordate, without angles. This species is slower in 

 arriving at maturity. It is probably mistaken by 

 Wangenheim for J. glabra. In my Index Flora 

 Lancast. I have called it J. obcordata.* 



7. Juglans Pecan Marshall, does not grow 

 here, but in the back-country. It is Juglans rubra 

 of Gaertner, as far as I am able to judge from 

 the fruit. Juglans illinoinensis Wangenh. has 

 no sort of relation to it either as to its leaves or 

 fruit.f 



FRAXINUS. 



Of the ash I have observed three different 

 species in this part of the country, and several 

 varieties. 



* J '. ckorJata : foliolis septenis ovatis acuminatisutrinque glabris punc- 

 tata?, nucibus obcordatis lxvibus. 



This appears to be a distinct species, though nearly related to the 

 foregoing, but as I had a few leaves oniy to compare, I cannot decide 

 whether they be constant in their form. They differ from those of the 

 foregoing species by their leaflets being tapering at their base, and 

 d< ably-toothed towards the point ; the base of the leaflets of the other 

 species, being, on the contrary, very unequal, tapering at the upper, and 

 blunt at the lower end; teeth simple. Perhaps the latter characters may 

 be 'wuhj'jct to change, but that of the nut is constant. 



\ This sp'cics is entirely imknou'U tj nie. W. (li is Juglansangus- 

 tiiclia Ilort. Kewrns. T.) 



