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OPEN LETTERS. 
Flora of St. Croix. 
I HAVE, quite by chance, just come across The flora of the island of St. 
Croixr, published 
by C. F. Millspaugh 
in the Feld Columbian Museum Bot. 
Series, Vol. I, no. 7, which was issued at the end of last year. 
In Mr. Mills- 
paugh's work no notice whatever 
is taken of the species published by Mr. 
Paulsen and the writer in a floristic appendix to our work "Om Vegetationen 
paa de dansk-vestindiske 
Oer;" though Mr. Millspaugh 
in his introduction 
gives a complete 
translation 
of the lines from Urban's 
"Bibliographia" 
dealing with our work: 
" In a floristic appendix six phanerogams new to the 
Danish islands and Rostrup's fungi and lichens are listed." 
We are thus led to believe 
that the author has not taken the trouble to 
read our paper.' 
Nor has he apparently made himself acquainted 
with the 
additions to Urban's "Bibliographia," 
which occur in later numbers of the 
Symbolae Anti/lanae. 
The result is that none of the species of phanero- 
gams, fungi, and lichens published by us have been included. 
The author 
also gives a short list of algae, containing, according to his typography, spe- 
cies new to the island. 
But hardly any of them are really new, as almost all 
of them, and several others, are mentioned 
in my short paper, "A contribu- 
tion to the knowledge 
of the marine algal vegetation 
of the coasts of the 
Danish West-Indian 
islands." 
I have, moreover, distributed some St. Croix 
algae in Wittrock and Nordstedt's exsiccatae, 
and in Phycotheca Amer.-bor. 
It is of course of great interest to have the new finds in St. Croix pub. 
wished, but this could have been done as an appendix 
to the flora of the 
islands. 
But when Mr. Millspaugh 
sets out to give a complete 
list, we are 
justified in expecting 
that everything 
published 
regarding 
the flora of the 
islands will be included.- 
F. BORGESEN. 
IT is distinctly stated on page 459 of the publication referred to that it 
only includes 
the work of the Rickseckers, 
checked by the only published 
general list of the island flora, viz., Eggers's. 
It was not the intention to 
include scattered 
lists. 
All of Urban's publications which were available up 
to the date of sending in copy were made use of.- 
C. F. MILLSPAUGH. 
Bot. Tidskrift, i898, and Revue G6n. Bot., i900. 
I58 
[AUGUST