7 
The committee thus established prepared the list and pre- 
sented it at the next meeting of the Botanical Club of the Amer- 
ican Association, held at Madison, Wisconsin, August, 1893, at 
the same time submitting the following recommendations, which 
were adopted :* 
1. The amendment of Section III. of the Rochester Code of 
Nomenclature by striking out all after the word “retained.” 
2. That the general sequence of natural orders as taken up in 
Engler and Prantl's * Natürliche Pflanzenfamilien ” be adopted. 
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. 
The committee was authorized to proceed with the publication 
of the list, matters concerning it not determined by the Club were 
referred to the committee with power, and it was increased to nine 
members by the appointment of Professors EDWARD L. GREENE 
and WILLIAM TRELEASE. 
The committee at once began the consideration of the topics 
necessary to the completion of the list on which no instructions 
had been given by the Club. After much preliminary corre- 
spondence it was decided by vote in each instance: 
I. That the original name is to be maintained whether pub- 
lished as species, subspecies or variety. . 
— I. That varieties are to be written as trinomials. 
III. That specific or varietal names derived from persons or 
places, or used as the genitive of generic names or substantives 
are to be printed with a capital initial letter. ` 
IV. That no comma is to be inserted between the specific or 
varietal name and the.name of the author cited. 
The committee called to its assistance specialists in various 
groups of plants, and their contributions are credited in the foot- 
notes to the list; it has also consulted many other botanists on 
questions in which doubt arose as to the occurrence of certain 
species within the geographical area adopted and on other topics. 
The citations of place of publication and date have been verified 
as far as the resources of American botanical libraries have 
*See Bull. Torr. Bot. Club, 20: 360-361 and Bot. Gaz. 18: 343, 349. 
~ 
