NOTICE. 
a 
Ir was my intention to delay the publication of a part of the 
matter contained in the present Bulletin until I was in possession of 
further detail, but certain matters have occurred which make it 
imperative that, so far as possible, all phytologic matter at all avail- 
able be issued in the present publication. 
I particularly regret that this has to be done, for it was my hope 
that I should have been enabled to carry out the plan adopted with 
the Freshwater Alge, of publishing all similar Families in separate 
Bulletins ; and for this purpose the large number of Lichens deter- 
_ Mined for us by the eminent specialist, Professor J. Muller, have been 
: kept back from a few of the previous Bulletins, but have now to be 
given, 
ee eee ee ae Se 
Those descriptions, of which printed slips have been issued, and 
. those added during the progress of the printing, are dated. 
a ¥, M. B. 
a“ ¥ 
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NOV 3 1945 a, 
a a 
