1919.] NATURAL SCIENCES OF PHILADELPHIA. 225 
baria of The New York Botanical Garden, the Brooklyn Botanic 
Garden, The Academy of Natural Sciences of Philadelphia, the 
Univesity of Pennsylvania, the United States National Museum, 
(including the former Biltmore Herbarium), and the Chatlepton 
Museum. In all institutions I have received the kindest attention 
and assistance. 
The present revision follows a plan which should lead to a simple 
and helpful presentation of our taxonomic knowledge of this family 
within the area considered. Keys are given throughout, and these 
are made so ample as to include all features of evident contrast 
noted. Effort is made to group species and genera according to 
real relationship, hence giving the keys a phylogenetic value. To 
accomplish this, and to show what appears to have been the evo- 
lutionary progress within this family, a rearrangement of the whole 
has been made. This was first attempted in my ‘Scrophulariacese 
of the Local Flora,’ but the placing of the Gratiolee as introductory 
to the genuine Scrophulariacee now appears to me more satis- 
factory. While of theoretic suggestiveness, it is hoped that these 
keys may prove of practical service. 
Synonomy is given, so far as to explain the origin and application 
of each specific and varietal name used, and to account for every 
such name ever proposed from within this area. The original state- 
ment as to the type or to typic distribution is quoted, and consequent 
discussion is given. Practically all typic or isotypic? material known 
to oceur in this country has been verified, and in Agalinis and allies 
much of that abroad. Especially rich in types are the herbaria of 
The Academy of Natural Sciences of Philadelphia, where Nuttall’s 
and de Schweinitz’s plants are preserved, and of the Charleston 
Museum, containing Elliott’s collection. 
The statements of distribution, variability, season of flowering 
and of fruiting, corolla-color, and other comment scarcely need 
explanation.’ For Agalinis and allies, which I have collected re- 
peatedly and over a wide range, my forthcoming monograph will 
give a more detailed analysis of the range of each species. At present 
for all species I am stating range in general terms, and shall trust 
to receive corrections from workers who find this treatment partial 
or erroneous. The detailed noting of corolla-color will be of interest 
to students in the field. In every case, unless otherwise stated, 
2 The word ‘isotype’ i wart to designate a specimen of the original collection, 
other than the type itself. See Torreya 19: 13. 1919. 
