538 appendix. 



ho taken out in fair weather, and laid on a board in the sun 

 for an hour ; after which they are to be cleared of the earth 

 and offsets about them, taking great care not to give the 

 least bruise or wound. (P. 16.) 



No. V. 



REMARKS on the cultivated Elm-Trees ; with Characters 

 of the British Species. By Mr Da vid Don, Curator of' 

 the Lambcrtian Herbarium. 



(Referred to at p. 256.) 



The real Dutch elm is undoubtedly the U. major of Eng- 

 lish botany, the Ulmus Hollandicus of Millar's Dictionary. 

 It approaches very near Ulmus suberosa of Erhart and Will- 

 denow, and appears intermediate between it and the mon- 

 tana of English Botany : still, however, I think it is suffi- 

 ciently distinct from either. The Ulmus suberosa is a very 

 distinct species. It is, like the major, a worthless tree, of a 

 stunted and rugged aspect. This species is often sold by 

 the nurserymen for the Dutch elm, and frequently confound- 

 ed by them with the English elm, to which, in a young 

 state, it bears considerable resemblance. The Ulmus mon- 

 tana, which has a rugged and somewhat corky bark, is rather 

 a shrub than a tree. It divides at the bottom into many 

 branches, and never grows to any considerable height. It is 

 frequently used in hedge-rows in some parts of England, and 

 is the best adapted for that purpose of any. The Ulmus 

 campestris has much smaller leaves than any of the other 

 species ; they are ovate, acute, doubly serrated, rough, and 

 strongly veined, with their base nearly equal, — flowers 4-cleft, 

 with four stamens ; lacinia? obtuse ; fruit oblong, obovate, 

 c [oven at the top ; bark rugged, much more entire than that 

 of U. suberosa. This grows to a large tree. 



Ulmus glabra of Millar's Dictionary, forms one of the 

 finest and most useful trees, being superior to all the pre- 

 ceding species. It is readily distinguished by its smooth, 

 dark lead-coloured bark, and by its leaves, which are nearly 

 nmolli on the upper surface. This tree is common in Scot- 

 land* and fornix a greal proportion of those kept in the nur- 



