22 
been. projected for the publication of articles, not too deep and 
extended, upon the flora of the western part of thestate. Besides 
the proceedings of the Club and reports of the administrative 
character, it contains papers on the Pteridophytes of Allegheny 
County, The Fungal Flora of Pittsburgh, and Rambles in Panama 
and Jamaica. It has all of the characteristics of a well-edited 
and interesting journal covering a local area.—N. T. 
A review (Plant World, July, 1911) of Fitting's recent paper 
dealing with the relation of osmotic pressure of the cell sap in 
plants to arid habitats gives some interesting figures concerning 
the pressure found in leaf cells. The reviewer, E. B. Livingston, 
says that “we find that the highest pressure developed by those 
desert forms is more than thirteen times what we have hitherto 
considered as usual. They are perhaps three times as great as the 
pressure observed in grass stems by Pfeffer. Hereafter the 
highest pressures observed by ordinary green plants must be 
cited as at least over 100, perhaps as high as 130 atmospheres, or 
even higher."—]. B. 
PROCEEDINGS OF THE CLUB 
OCTOBER 25, IQII 
The meeting of October 25, 1911, was held in the Museum 
Building of the New York Botanical Garden at 3:30 P.M., Vice- 
President Barnhart presiding. Fifteen persons were present. 
The scientific program consisted of informal reports on the 
summer's work. Dr. N. L. Britton discussed the genus Camer- 
aria L. and illustrated his remarks by specimens and illustrations 
of the known species, together with those of an undescribed one 
found by him at the United States Naval Station, Guantanamo, 
Cuba. He also remarked on the large number of undescribed 
species of plants in many genera contained in the recent Cuban 
collections of the New York Botanical Garden. 
Dr. Marshall A. Howe gave a brief résumé of a paper on ‘‘Some 
