8 NEW YORK STATE MUSEUM 
as a source of information regarding the publications upon the flora 
of the State and as a guide in future investigations seems par- 
ticularly opportune at this time. Considerable time has been given 
to the preparation of such a bibliography, which is printed in this 
report. 
Plant diseases. The principal plant diseases caused by fungi 
which have been submitted to this office have been parasitic leaf 
diseases of ornamental and shade trees species. The most note- 
worthy is a disease of the foliage of wild and cultivated clematis 
caused by Ascochyta clematidima ; a disease of oak 
leaves caused by Gloeosporium canadense and also a 
peculiar association of an insect gall and Phyllosticta 
phomiformis; diseases of the leaves of the woodbine or 
Virginia creeper caused by Cercospora ampelopsaame 
and Phyllosticta ampelopsidis, anda disease ommorse 
chestnut leaves caused by Phyllosticta paviae. These 
are illustrated and discussed in another place under “ New or Inter- 
esting Species of Fungi.” 
Memoir on the Wild Flowers of New York. Active work upon 
this project was begun in August and photographs were made in 
central New York, vicinity of Albany, Catskill, New York, and on 
Long Island, of over 150 flowering plants which bloom during the 
latter part of the summer and autumn, using both dry and lumiere 
plates. Preliminary proofs of several of the illustrations have been 
received showing the natural color and grace of the wild plants in 
a manner that could not be secured by any other process. A few 
of these are published in this report. 
Exchanges. Valuable exchanges of herbarium material have 
been effected whereby the state herbarium has been enriched by the 
addition of 254 specimens from Prof. J. J. Davis of the University 
of Wisconsin, 47 specimens from the New York Botanical Garden, 
62 specimens from Prof. John Dearness of London, Ont., and 68 
specimens from Prof. L. H. Pennington of Syracuse University, in 
addition to several minor exchanges. 
Condition of the collections. With the addition to the staff of 
Mr Joseph Rubinger, the assistant botanist, it has been possible to 
place the state herbarium in an excellent condition as regards 
arrangement and availability of material for study. The collections, 
exchanges and contributions of the current year have been mounted 
and placed in the herbarium together with a large quantity of 
unmounted material which had accumulated in years past. 
