166 
2. The achenes of the earlier and later flowers are as a rule not 
viable. 
38. The seedlings are especially sensitive to heat and temperature 
changes. 
4. The period of the vitality of the achene is rarely more than 
two years. : = - 
Detailed report is reserved until more extended experiments are 
made. 
Tuer MycorHiz® oF APLECTRUM. By D. T. MacDoucat. 
Tue TENDRILS OF ENTADA SCANDENS. By D. T. MacDovuGAt. 
Tue ErIcAceE® oF INDIANA. By ALIDA MABEL CUNNINGHAM. 
In determining the distribution of the Ericacex in Indiana there is encoun- 
tered the same difficulty as in the case of so many other families. A complete 
and thorough botanical survey of the State would be a task involving untold 
labor, and, however enthusiastic the collector, the time and expense involved in 
such an undertaking will necessarily delay for some time the accomplishment of 
the work. As a result, comparatively few localities in the State have yet been 
fully reported. But it is a matter of still greater regret that so much of the work 
done in the past has been a mere waste of energy, the reports left so incomplete, 
and even the name of the worker, in many cases, is unknown. The last State 
catalogue * reported twenty species of Ericacee and six have since been added by 
various collectors. These species represent nineteen counties, and eleven have 
no collector named from any county in the State. 
The only species I have been able to find in Tippecanoe County is Monotropa 
uniflora L. In the summer of 1895 I found eight specimens. They were growing 
in a thick growth of timber, chiefly white oak and black oak, on a heayy~clay 
soil. The next year the same timber land was visited and they were found there 
of the most perfect character and in the greatest profusion all over the tract of 
* Of these twenty species, Oxydendrum arboreum, D.C., Kalmia angustifolia L., Rhodo- 
dendron nudiflorum Torr., and Pyrola secunda L. are not found in Monroe County, as re- 
corded in the State catalogue, and are to be excluded from State Flora. This leaves the 
number of known species twenty-two. 
