236 AMERICAN HANDBOOK 



times reach, eighty feet high; but its most 

 usual figure is sixty. 



The seed ripens in May, and should be 

 sown at once in a bed of light sandy loam, 

 taking care to keep the bed regularly moist 

 and partially shaded through the season. 

 The most usual mode of propagation is by 

 layers. A " stool" being used for that pur- 

 pose, the shoots are twisted and moulded up 

 as before described, and in that manner they 

 soon form roots. 



There is a weeping variety, U. pendula of 

 Pursh, in our collections, as well as one? with 

 purple leaves. 



2. U. CAMPESTRIS, Linnceus. Leaves rhom- 

 boid ovate, acuminate, wedge-shaped, oblique 

 at the base, scabrous above, doubly and ir- 

 regularly serrate, downy beneath, serratures 

 incurved. Fruit oblong, deeply cloven, 

 naked. English elm. 



This is a finer tree than the last, growing 

 larger, and having a stiffer head, and general 

 habit of growth. Mr. Emerson notices that 

 the leaves stay green a much longer period 

 in the fall, than in our kind. 



