214 ERYTHEA. 
In the absence of the Secretary, W. A. McBride, his office 
was filled by the election of W. T. Swingle. 
The report of the Committee on Nomenclature, appointed 
at the Rochester meeting of 1892 to prepare a check-list of 
the flowering and fern plants of Northeastern North America, 
was made by N. L. Britton, Chairman. The list was pre- 
sented nearly complete for printing. Discussion of the report 
occupied the remainder of the day’s session. The report was 
received, and the following recommendations of the committee 
were adopted: 
1. The amendment of Section III of the Rochester Code 
of Nomenclature by striking out allafter the word “retained.” 
This recommendation is based on the mature judgment of the 
committee after watching for a year the progress of the 
demand for a rule which shall admit no exceptions whatever 
and affect the closest approximation to the immutability of 
the specific name. This action authorizes the use of specific 
names identical with the generic, such as Catalpa Catalpa, 
and preserves the immutability of the specific name, in what- 
ever genus it is first published, even if the same binomial has 
been published between the time of the first publication of 
the species and its transfer to the accepted genus, as for 
example: 
SIsyMBRIUM PINNATUM (Walt.), Greene. 
Erysimum pinnatum, Walt. FI. Car.—(1788). 
Sisymbrium canescens, Nutt., Gen. ii., 68 (1818), not 
Sisymbrium pinnatum, Barn. in Gay. FI. Chil. pacman 
g=n3), which is to receive another name. 
2. That the general sequence of natural orders as taken up 
in Engler and Prantl’s “ Naturliche Pflanzenfamilien” be 
adopted. The check-list will therefore begin with the Pteri- 
dophyta, followed consecutively by the Gymnosperm®, 
Monocotylodones and Dicotylodonee. 
3. That in determining the name of a genus or species to 
which two or more names have been given by an author in 
the same volume or on the same page of a volume, precedence 
shall decide. For instance: Tissa stands on the same pas® 
