A SUMMARY OF THE REVISED EDITION. 



those he sees ; he misses his vocation when he attempts 

 to count ! There is a drawing for every species whose 

 difference from another can be properly expressed by a 

 sketch. Any new drawings, which of necessity are 

 widely separated from the text are indexed. 



The newer scientific nomenclature of the 



Names lentlflC ^ ook ' ^ is P ertinent to sav is an innovation 

 which was a radical necessity. The names 

 are now those of the seventh edition of Gray's Manual 

 of Botany, and in accordance with the code of the Inter- 

 national Congress of Botanists held in Vienna, June, 

 1905. It is also a satisfaction to note that in many 

 instances they accord with those of Britton and Brown's 

 Flora of the United States and Canada. Very naturally 

 considerable difficulty has attended the effort to bring 

 the book into exact conformity with the Vienna code, 

 but in one minor instance that has not seemed altogether 

 necessary. The geographical names such as AmericoMa, 

 Canadensis, Virginiana, etc., are now written ameri- 

 cana, canadensis, etc. Wherever, therefore, these names 

 appear with the capital, it should be remembered that a 

 thorough change (it would carry no weight aside from 

 a technicality) would involve the alteration of innumer- 

 able plates, and result only in inconsequential uniformity. 

 On the other hand the important change of generic and 

 specific titles, very often involving an entirely different 

 concept of classification, is an essential one, particularly 

 in view of the fact that as time progresses nomenclator- 

 ial confusion must disappear before an internationally 

 supported standard. 



The effort to describe the colors of flow- 

 The Color Key 



ers with scientific accuracy and yet not 



unduly disturb botanical tradition has already been em- 

 phasized within these pages. Unfortunately it is difficult 

 for the artist, whose calling imposes upon him the need 

 of knowing color in all its complex artistic phases, to 

 impart to either the layman or the botanist an exact idea 

 of a particular hue in a word or two. Popular names 

 are unreliable ; technical ones those which belong to 

 the palette are insufficiently known outside the studio. 

 Yet some sort of a simple scientific classification of flower- 



