NOTES ON THE NOMENCLATURE OF FUNGI 8303 
status) can bear only one generic and specific name (binomial) 
that is the earliest which has been given, starting from Fries, 
Systema, or Persoon, Synopsis, to the state containing the form 
which it has been agreed to call the perfect form, provided that 
the name is otherwise in conformity with the rules. The perfect 
opens is that wien ends in the ascus stage in the Ascomycetes, in 
sidium in the a igeas Weg in the teleutospore or its 
From the above it will be seen that enclature in eae 
offers peculiar difficulties. In the first meee sais is the fact that 
although binomials flourished after 1753, no name can be adopted 
which appeared before 1801, and in some cases ess until 1832. 
Fortunately the influence of Fries was so great ae of such 
duration that the names he used, in "the Basidiomycetes especially, 
have been generally adopted. The second difficulty arises from Fug 
fact that if a name has been given to the so-called ‘“ perfect ” 
stage, that name must take precedence. 
SyzyGiTEs v. SPORODINIA. 
One of the commonest ef Mucorinem, appearing almost 
sevitably on decaying agarics, is the fungus which is perhaps 
most often known as Sporodinia grandis, though, as will appear 
its sh names. Much lite 
the fungus is homothallic these sexually produced structures are 
obtained without difficulty, and hence-a great amount of work has 
been done on the influence of external conditions on sph pro- 
duction, and also on the cylotogical phenomena obtaini 
The fungus can be identified from the old descripti ies eeause 
_ of the dichotomous branching of its a ae and of it 
Persoon was apparently much cuelad “a ‘the different appear- 
jflavidus lutescens demum griseus” in Rémer’s Neues Mag. Bot. i, = 
