416 Notices of Communications to the Society, of which 



June 6th, 1820. The Duke of Atholl having sent to 

 the Society Specimens of Jive kinds of Larch, grown on his es- 

 tates, in Scotland, accompanied by observations on them, 

 this communication, together with some notes thereon by Mr. 

 Lindley, was read at the Meeting ; the kinds were : 



1st. The Common Larch, Pinus Larix, with red or pink 

 flowers. In the Duke of Atholi/s plantations on moun- 

 tainous tracts, at. an elevation above the sea of fifteen or 

 sixteen hundred feet, this tree, at eighty years of age, has 

 arrived at a size to produce six loads of timber, appearing 

 in durability and every other good quality, to be likely to 

 answer every purpose, both by sea and land. 



2nd. Finns Larix, from the Tyrol, with white flowers. 

 This kind seems not to have been before noticed. It is very 

 remarkable in its appearance, from the whitenes of its cones, 

 which, in the specimens sent, were erect and not cernuous. 

 The shoots are much stronger than those of Pinus Larix, with 

 red cones. The foliage of the two are similar. 



3rd. The Weeping Larch, from the Tyrol, a variety of Pinus 

 Larix. It is different from the Pinus pendula, or Black Larch, 

 of North America. The tree grows to a large size. 



4th. Pinus Microcar pa, the Red Larch of North America. 

 There are some trees of this kind fifty years old upon the 

 Atholl estates, but they do not contain one-third as many 

 cubic feet of timber as Pinus Larix at a similar age. The 

 wood is so ponderous that it will scarcely swim on water. 

 Its cones are much shorter than those of the Pinus Larix, its 

 branches weaker, and its leaves narrower. 



5th. The Russian Larch, raised from seed procured from 

 Archangel fourteen years ago The appearance of the tree 



