244 BOTANICAL GAZETTE | SEPTEMBER 
turgor and vice versa. The conclusion drawn is that the rapidity 
of growth regulated the amount of turgor, instead of growth 
being regulated by amount of turgor. 
BOTANICAL CLUB. 
W. A. KELLERMAN: Distribution of certain Ohio plants.— 
With the aid of a map, attention was called to the distribution 
of Phoradendron flavescens through the southern counties, the 
northern limit broadly coinciding with the southern limit of ‘the 
drift; of Bignonia crucigera, occurring only in Lawrence county, 
the southernmost county of the state; and of Polypodium polyp 
diotdes, occurring in two Ohio river counties, Adams and Ham- 
ilton. 
L. R. Jones: A method of atstributing fungi in pure cultures. 
— When leaves contain numerous fungi the distribution of dried 
material frequently leads to confusion. Cultures of the desired 
fungus are made in agar and sent in blocks with the dried 
material. 
Mrs. E. G. Britton: An interesting moss from the White 
mountains—In a recent collection of mosses made by Mr. 
Faxon in the White mountains there occurred specimens of 
Letraplodon mnioides. The moss is known in small tufts on other 
mountains, but occurs abundantly in the new station. Its abut 
dance seems to be explained by the presence of the mountal? 
stables, from which the dripping urine of the horses has fur- 
nished peculiarly favorable nutrition. 
Davin F. Day: The branching rhizomes of Iris.— Nee 
native species of Iris in cultivation had been observed, and i 
every case the rhizomes branched terminally into three a 
sions, the central one alone giving rise to the flowering ne 
This habit is believed to be true of all American species of Iris, 
and of all species excepting the so-called bulbous forms: 
are pre 
3 es formal papers are read before the Club, but the topics reported 
sented informally and discussed. 
