XXVill 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 16. The President in the chair. Dr. J. W. 
Harshberger described ‘Observations on the Epiphytic 
Genera of the Ascomycetes.” He traced the life history of 
Podosphera, Spherotheca, Phyllactinia, Uncinula and Erysiphe. 
Among the Meliolide he described the history of Capnodium 
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 Cytology,” which is herewith published. 
Numerous specimens were exhibited from the University 
garden, including Cypripedium villosum and its supposed 
variety Boxall. 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. vz//osum 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 usually found 
in healthy and decayed teeth, as also the gradual decay caused 
in tooth substance by the activity of some of the organisms. 
