BOTANICAL OBSERVATIONS ON THE AZORES. 85 
been made, especially from the wet sphagnum with which 
the highlands are usually covered except in Sta. Maria. 
Nearly complete as the list of flowering plants and ferns 
is believed to be, a true flora of the Azores, even for these 
higher plants, is yet far from possible. For comparison 
with other regions, a list like Mr. Watson’s, or the one 
here published, is reasonably satisfactory, but for the islands 
themselves a detailed local flora, with an analysis of the 
influences which favor the extended distribution of one 
species while restricting another to a very limited area, is 
greatly to be desired. Notwithstanding that the present 
catalogue makes only a small addition to the known number 
of species in the higher groups, it is believed that its pub- 
lication is justified by the exact indication that it gives of the 
known distribution of the several species by islands; never- 
theless my data are too few for the presentation of anything 
like a full list of localities in the several islands, so that 
no attempt has been made to do this. To facilitate 
the studies of future collectors, references have been 
added to reasonably good and easily accessible descrip- 
tions and figures of the species of higher plants, a few 
readily procurable hand-books being cited for this pur- 
pose, when possible, rather than scattered even if more 
critical and detailed memoirs and monographs. The 
abbreviations used in these references are explained at the 
end. 
In the preparation of the catalogue, in addition to using 
my own collections (some 1930 numbers), I have had the 
privilege of examining of a collection some 435 numbers 
made in 1894 by Mr. C. S. Brown, chiefly in Fayal, 
Pico, and San Miguel; the herbarium of the Municipal 
Museum of Ponta Delgada, San Miguel; and numerous 
collections made in the latter island by Dr. Bruno T. Car- 
reiro and Dr. C. Machado. While in Terceira, I was 
allowed to examine and take duplicates from the private 
herbarium of Dr. J. A. N. Sampaio, and while unfortu- 
nately I did not preserve a list of his Terceira species, the 
a ee ee NSE a ee ene ee ee ea oe Pee ee ee 
