326 
date Swartz*; among mosses, Hedwigt; among Algz, Agardhf; 
among lichens, Acharius§, and among Fungi, Persoong. For one, 
I would most vigorously oppose his proposed rejection of S. F.Gray’s 
hepatic genera, for they can in no sense be regarded as ‘‘nomina 
nuda.” 
The following memoranda from the botanists of the British 
Museum will also be of interest: “We do not quite agree with 
the first rule as stated. It appears to us that the genera should 
enjoy the same priority as the species, and should be quoted from 
the first edition of the Genera Plantarum, 1737. We do not ap- 
prove of quoting an edition which was not published under the 
authority of Linnus. If it were possible to adopt 1753 for both © 
genera and species we would approve; but this does not seem to 
us to be possible. We therefore suggest that the first rule should 
read: The starting point of the priority of genera is the year 
1737, and of species 1753.” 
The above bears date of 2d July. Under date of 27th July, 
they again write: “We do not see how we can stop short of 
1737 in dealing with genera as genera. But as binominal names 
—and every specific name includes, of course, the generic as 
well as the trivial designation—did not exist until the publication 
of the ‘Species Plantarum’ in 1753, we agree that a name given 
in that work cannot be set aside for one, the generic part of which 
was ignored or set aside by Linnzus. And we, therefore, 
acknowledge that this practically fixes the date of genera to 1752. 
Notwithstanding this reservation, the British Museum botanists 
are recorded as voting for the four resolutions, together with 
Braithwaite, C. B. Clarke, and a few others from Britain less 
known. 
M.C. Cooke, A.W. Bennett and G. Massee subscribe to I, II and 
III; and Sir Jos. Hooker, Hemsley and B. Daydon Jackson, to 
propositions II and IV. The great majority of the votes came 
from the German botanists, and, with very few exceptions, were 
for the four original propositions as stated in the circular. 
*Synopsis Filicum, 1806, 
+Species Muscorum, r8ot. 
{Species Algarum, 1823-1828, 
$Lichenographia Universalis, 1810. 
‘|Tentamen Dispositionis Methodice Fungorum, 1797. 
