122 



These have been studied with special care and added to onr ah'eady 

 very complete list of the plants of the local flora. V'ery careful notes have 

 been secured as to the distribution, variations and other important ques- 

 tions connected with the plants as collected. 



During- the early part of the year, in connection with the work in 

 forestry, a collection was made of the fungi injurious to timber in our 

 locality. The number of species was not as large as could reasonably be 

 expected, and it seems that most of the devastation by fungi in our native 

 forests is produced, in the main, by a very imited number of species. 



Some additions have been made to our list of algae and a few to the 

 collection of mosses. The latter list now includes 39 species. 



Our most important contribution to the State tlora is in the slime 

 moulds. 



During the past summer two students, Messrs. H. H. Whetzel and 

 A. A. Taylor, devoted much time to this group. The result is an addition 

 of 31 species to our list presented to you two years ago by Mr. Olive. 

 This now gives us a total of 77 myxomycetes in Montgomery County. 

 In addition to this we now have on hand some material not yet worked 

 over, and doubtless several species in this are not included in our list. 

 This is all the more interesting when we consider that our county is not 

 particularly adapted to these forms of plant life and that the number 

 reported is nearly two-fifths of the whole number found thus far in the 

 United States. 



The additions to the list are as follows. The classification used is the 

 one presented by Lister in his Mycetozoa. 

 Order Ceralomyxaceae. 



Ceratomyxa mucida Schroet. 

 Order Physaraceae. 



Plysarum polymorphum var. obmsseum Rest. 

 Physarum calidris Lister. 

 Physarum newtoni Macbride. 

 Physarum compactum Lister. 

 Physarum, globuHferum Fera. (Bull). 

 Physarum galbcum Wiiigate. 

 Chondrioderma spumarioides Eost. 

 Order Didymiaceae. 



Didymium dubium Rest. ' 

 Didymium farinaceum Pchrader. 



