xx\'iii Proceedings of the Botanical Society of 



thanks, that the committee be discharged, and that a resolu- 

 tion embodying that now submitted be sent to the president 

 of the Appalachian Park Association." 



In view of observations made by Dr. J. T. Rothrock and 

 others it was further resolved : "That the Botanical Society 

 of Pennsylvania respectfully memorialize in favor of the imme- 

 diate purchase of desirable land for forest reservations in the 

 state, as the Commissioner of Forestry may suggest, and that 

 a copy of this resolution be sent to the Governor and 

 Forestry Commissioner of the State." 



February i6. The President in the chair. Dr. J. W. 

 Harshberger described " Observations on the Epiphytic 

 Genera of the Ascomycetes." He traced the life history of 

 Podosplicsra, SpJicsrotJicca, Pliyllactinia, Uncinula and Erysiphe. 

 Among the Meliolidje he described the histoiy of Capnodiunt 

 and Meliola. Their relation to the host plants was then 

 indicated, and their destruction by the parasitic genus Ascher- 

 sonia was explained. 



Professor Macfarlane read a paper, " Current Problems in 

 Plant Cytolog)'," which is herewith published. 



Numerous specimens were exhibited from the University 

 garden, including Cypripediiun villosuui and its supposed 

 variety Boxalli. Dr. Macfarlane inclined to follow Reichen- 

 bach in regarding the latter as a distinct species, or possibly 

 a hybrid formed in the wild state between C. villosuni and some 

 other species. 



Several volumes on fossil cycads, donated by Professor 

 Lester F. Ward, were exhibited and commented on. 



March 2. Dr. Miller in the chair. Dr. Henry Leffmann 

 spoke on " The Botany of the Mouth'." He traced the 

 knowledge on this subject, from the time of Loewenhoek to the 

 present day, and described the plant organisms usuallj' found 

 in healthy and decayed teeth, as also the gradual decay caused 

 in tooth substance by the activity of some of the organisms. 



