9 
This collection is to be the basis of nine volumes of the North 
American Flora. As the various groups of fungi are worked 
over and new species published, the number of type specimens 
in the herbarium will be greatly increased. Students, collectors 
and investigators of fungi throughout the country will continue 
to send in specimens for determination and comparison, and will 
come here in greater numbers to consult not only the originals, 
but the array of additional specimens that show the variation and 
the geographical distribution of given species and groups of 
species. 
As material accumulates, without doing violence to the integ- 
rity of the collection, duplicates will be sent out in exchange for 
material from new regions, and to various botanical institutions 
for the purpose of stimulating activity along certain lines of col- 
lecting. 
It is hoped that important contributions may in time be made 
to questions of geographical distribution on the basis of these 
various collections from distinct regions. For the purpose of 
recording the distribution of species conveniently and quickly, 
the distribution chart found at the end of this number of the 
JouRNAL has been prepared ; copies of which are properly marked 
and pasted on the inside of the species covers, to show at a glance 
just where a particular species has been collected. 
If one wishes to distinguish plants from different regions in the 
herbarium, he may use gummed paper markers of different colors 
on the genus covers, or simply indicate the regions by numbers 
or letters, as shown in the following table : 
I, . Indi In,,...Orange 
cna and = ae Cj..... Yellow 
Ill. s “8 Malaya. ... Brown 
IV. Eur urope and Sibevia Gray IN. ‘Australian: Au.... Pink 
Vy Africa vei ania Black X. Islands. Is Green 
. A. Morrirl. 
