35. 



Records of the climatic conditions prevailing 

 at A & M College during the period of experimentation 

 were obtained from the United States Weather Bureau 

 and are presented in Tahle I, It is evident from the 

 data that the prevailing winds during the time 

 of experimentation were from the south, consequently 



their drying effect was not very great. 



Results 

 A study of the epiphytic flora of Juniperus 



virginiana in the shady woods and of Quercus stellata 

 in the open, revealed the fact that on both trees the 

 uppermost part of the trunk bore only lichens and no 

 green epiphytes .The main difference between the 

 epiphytic floras of the two trees was noticeable at 1,2 

 meters from the ground where on the juniper at that 

 height the fern was found abundantly and was not 

 restricted to any particular expo sure, while on the 

 oak the fern was wanting altogether at that height. 

 Only on the upper third of the trunk of the juniper 

 was the polypody wanting, below that the fern was found 

 abundantly on the stem, On the oak, on the contrary, 

 the fern did not occur either at the base of the tree 

 or at the uppermost part of the crown where the main 

 axis was lost in the brsuiche3,At the other elevations, 

 it occurred only on the northeast, north, and north- 

 west exposures. 



