Botany in the Experiment Station. 83 



sporium maculatum), and it was shown by the writer as early as 

 1897* that the perfect stage of this fungus was a Fahraea. 



\ 

 STUDIES OF THE HIGHER FUNGI. 



The third subject for investigation has been the study of the 

 higher fungi, with special reference to the edible and poisonous 

 mushrooms, the wood and timber destroying fungi, and the members 

 of this group which are parasitic. 



The first studies were published as Studies and Illustrations of 

 Mushrooms I & II, in Bulletins 138, 1897, and 168, 1899, the former 

 containing an account of Agaricus campestris, Lepiota nancina, and 

 the poisonous Amanita phaUoides, and the second giving an account 

 of Coprinus atramentarius, comatus and micaceus. These bulletins 

 are profusely illustrated with life size photographs. Some of the 

 studies of wood destroying fungi appear in Bulletin 193. Studies 

 of some Shade Tree and Timber destroying Fungi, June, 1901. 

 These investigations describe the mode of entrance of these wound 

 parasites into the trees, their progress in the tree, special characteris- 

 tics in the decay of the timber for each species, a comparison of the 

 fruit structures, and the result of a study to show that the sheets of 

 " punk " so abundant in old coniferous logs, and sometimes found 

 between the boards in a lumber pile are formed of the mycelium of 

 Polyporiis pinicoJa so common on all conifers. Suggestions are 

 also made as to the necessity of care in forestry operations and in 

 the pruning of shade and fruit trees to prevent the entrance of these 

 injurious fungi. 



Some investigations have also been made in the cultivation of 

 mushrooms to acquire sufficient experience to give directions for the 

 growing of mushroom? on a small scale with little expense for 

 family use. The results of this study were published in Bulletin 

 227, Mushroom Growing for Amateurs, March, 1905. 



A large number of other studies have been made and are still in 

 progress on the development, structure, taxonomy and economic 

 relations of the higher fungi as well as upon the parasitic fungi, and 

 a great number of photographs have been accumulated. Some of 

 these studies were published in book form,f and others have been 

 published in leading botanical journals of the United States and 



*Leaf Spot of Pear, Garden & Forest, 10, 7:^, 74, 1897. 

 tStudies of American Fungi, Mushrooms, Edible, Poisonous, etc., Henry 

 Holt & Co., New York. 



