{ 157) 
Index Florae Lancaftrienfis, auctore Henrico Muu.en- 
BERG, D. D. 
Dedicated to the Philofophical Society at Philadelphia, 
by the author. 
GENTLEMEN, 
Read Feb. if Did myfelf the honour to lay before the Philo- 
ruth, 179% (onhical Society a Specimen Florae Lancaftrienfis, 
fome time in the year 1786, collected from actual obferva- 
tions from 1780. 
Since that time, I have had an opportunity of adding fome 
fupplements, and I now make bold to fend you an index 
of fuch plants as I could find, after the ftriteft fearch, 
growing either wild or cultivated in, or near, Lancafter. 
The whole number is very near 1100. All fuch plants as 
Inever found growing wild, but are imported from other 
countries, or even from other American States, I have 
marked with aT. 
If I found no name in Linne’s fyftem, I took it from 
other works lately printed, or from Dodtor Schreber’s let- 
ters, with whom I have opened a correfpondence. He is 
profefior Botanices et Hiftoriae naturalis at Erlangen, 
editor of the Genera Plantarum Linnaei, and, without 
doubt, one of the firft botanifts in Europe. If I could find 
no name by thefe means, I was forced to make one myfelf 
adding N.S. until better informed by abler botanifts. 
I repeat my former with, that fome of my learned coun- 
trymen would join in botanical refearches, and fend in 
thir Floras, for perufal or publication, to your Society, fo 
that by gathering the Floras of the different States, we may 
have a general Flora of the United-States, drawn from 
good 
