THE BRUSSELS CONGRESSES 229 
-—.. and a series of propositions on phytigecesee 
nomenclature. The rules of systematic nomenclature which w 
drawn up as hs result of the deliberations of the Vienna Ganbreas 
in 1905 left open for future ea ion special points in relation to 
non-vascular cryptogams and pale 
After some informal diadoenict a series of recommendations 
was agreed to by the Congress. eon date git — accepted as 
8 
Liche The exceptions to the general ie f lgse were as 
follows : :—Desmids, to start from J. ge British aie se 1848. 
, to start from K. E. Hir . Lconogra raphie 
der Oedogoniac @, 1900; Nasionanée, to start from M. Gomont, 
Nostocacées Avila stat, 1890, and E. Bornet and Flahault, Nosto- 
Hedwig’s Species Wasccrins, 1801, wa ee upon. Se order to 
reduce to a minimum c 
Congress, which is held in London in 1915; i - 
time, workers are recommended in make as few changes as pos- 
sible from generally accepted nomenclature. The discussion of 
cep 
a starting-point for the abiban slates of Bacteria, and of t 
Schizophycex, oe g the Nostocacez, was postponed until 
the next Congress 5. 
A useful qetain was arrived at in connection with the names 
of pleomorphic fungi, the successive states of which have been 
described under different names. It was agreed that these should 
ar one generic and specific name—viz. the earliest given to the 
state, which it is agreed to call the perfect state—on condition that 
this name otherwise conforms to the Rules. The “ perfect state 4 
is that which leads up to the ascus in the As scomycetes, the basi- 
dium in the — idiomycetes, the teleutospore in the Uredinex, 
and the spore in the Ustilaginee. e addition of 3. heme: in- 
new genera or species of fungi. 
Some discussion se place on the subject of still-born names, 
that is, pose names taken from an earlier combination which is 
he Rules and- therefore not valid (see also this 
Joutasl, 1909, 187). The Committee made the np he recom- 
mendation, which was accepted :—A name which has to be re- 
so doing he is at liberty to adopt a species-name from some 
oats non-valid idchioalinks = 
