REPORT OF THE STATE BOTANIST I912 7 



excellent foundation for the study of these interesting though 

 often considered nearly worthless and annoying shrubs and 

 trees. He has also added to this, descriptions of 25 new species 

 of this genus. 



In places where the chestnut bark disease, Diaporthe 

 parasitica Murrill, has obtained a foothold it still continues 

 its destructive work. The chestnut tree is common in the 

 central and eastern parts of Rensselaer county. Its bark disease 

 has been reported from both the northern and southern borders 

 of the county. Two visits have been made the past season to 

 the town of Sand Lake in the central part of the county to look 

 for the disease, but hitherto no evidence of its presence there 

 has been found. It seems remarkable that the disease should 

 occur in the northern and southern borders only, unless its 

 approach has been made from two different points of infection 

 situated in nearly opposite directions from the center of the 

 county. With the disease both in the northern and in the 

 southern borders it is perhaps too much to expect that the inter- 

 vening space can long escape attack. It would be well for the 

 owners of chestnut timber land to keep a sharp lookout for it 

 and promptly remove any affected trees that may be discovered, 

 strip off the bark and burn it at once, that the disease may be 

 kept in check as much as possible. 



A small rocky knob at the north end of Lake Placid in Essex 

 county is locally known by the name Eagles eyrie. It is covered 

 with woods, the prevailing trees being red spruce and paper or 

 canoe birch. These vie with each other in the size and length 

 of their trunks. I have seen no more stately and no finer speci- 

 mens of them in any other part of the Adirondacks. The trail 

 leading from the shore of Lake Placid to the top of this moun- 

 tain is about half a mile long and neither very rough nor very 

 steep. At three stations on this trail the leaves of the striped 

 maple, Acer p e n n s y 1 v a n i c u m L., were wilted and 

 drooping. An examination of the base of the trunk revealed a 

 mass of white mycelioid filaments infesting it and the roots. 

 The fungus was not in fruiting condition and its systematic 

 location could not be ascertained. The attack was apparently 

 so severe that it doubtless will eventually destroy the lives of 

 the diseased trees. 



Near the red schoolhouse in the town of North Elba, Essex 

 county, there is a patch of shrubs of wicopy or leatherwood, 



