».4 PREFACE. 
republish Mr. Bentham’s invaluable Outlines of Botany, and 
Glossary. 
Following this I have introduced a kind of bibliographical 
index, giving in sufficient fullness to allow of ready identification 
the titles, with cross references, of all botanical works cited in 
abbreviated form in the Flora. This feature will, I trust, be of 
value to many. 
The maps at the close of the book were prepared with 
special reference to immediate location of the habitat of a given 
species. With very few exceptions all names of habitat mentioned 
in the Flora are to be found upon the maps. The orthography 
differs in a few cases from that employed by the author, but 
generally so slightly as to offer little or no difficulty in identi- 
fication. No claim is made to the highest degree of topographical 
accuracy, especially in the cases of the islands of Kauai, Molokai, 
and Lanai, of which no recent maps were available for use in 
compilation, the Hawaiian Government Survey not having as 
yet completed its work. 
Dr. Hillebrand was indebted since his departure from 
Honolulu in especial to Mr. John Lydgate, of Laupahoehoe, 
Hawaii, and to Mr. Valdemar Knudsen, of Waiawa, Kauai, for 
frequent remittances of dried plants to aid in the preparation 
of this work. The first named gentleman is generally quoted as 
authority throughout the text by the abbreviation Lydy., the 
latter by Kn. Specimens were also received, I believe, from Mr, 
D. Baldwin (Baldw.), Mr. Edward Bailey, and from the late 
Messrs. Edward Bishop and E. Johnson. 
To all who may have been of assistance to the author in 
his labors, whether living in the Hawaiian Islands or elsewhere, 
his family express in his name their sincere thanks. 
The use of the original plate for the frontispiece, which is 
taken from Capt. C. E. Dutton’s paper on Hawaiian Volcanoes, 
in the Fourth Annual Report of the United States Geological 
Survey, was kindly allowed by the Hon. G. W. Powell, Director of 
the Survey, for the purpose of making an electrotype copy. To 
