174 THE AMERICAN MIDLAND NATURALIST 
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folia, Jeffersonia, Caulophyllum, Papaver dubium, etc., none 
of which have been mentioned; from High Island Carex 
Careyana; form the woods and swamps near Suratteville a 
number of rare species viz. Glyceria obtusa, Rhyncospora 
gracilenta, Utricularia subulata, etc.; and from Marshall Hall 
Kyllinga, Trifolium minus, Gnaphalium uliginosum, Quercus 
heterophylla and many others. 
It is really strange to see that Gnaphalium uliginosum in 
the new Flora of D. C. is credited to Professor Ward with 
the remark ‘not collected since 1884,” nevertheless I have re- 
ported it from Marshall Hall and Hyattsville, in the tifth list 
of additions (1901). 
Danthonia sericea I have reported from near Highland, 
Fimbristylis laxa from Hyattsville, etc., but neither the speci- 
mens collected nor the lists published in the Proceedings -of 
the Biological society of Washington (1892, 1896 and 1901), 
have been of any interest to the authors of the new Flora. 
It would,however,have been of interest to the student to get as 
complete a list as possible, not only for the sake of collecting 
the plants, but also in order to become acquainted with their 
distribution within the District. In this respect the student 
learns very little, for the authors too frequently use the word 
“common” for species which are actually rare; moreover the 
localities are not given for quite a number of the species said 
to be rare. In the genus Polygala for instance several species 
are said to be frequent, although they are relatively rare; no 
localities are given for several of these, and they are repre- 
sented by specimens from localities very scattered, and by 
relatively few specimens. 
In the Orchideae no localities are given for the several 
species of Habenaria except H. cristata, and they are but 
scantily represented in the Herbarium. No locality is given 
for the rare Triphora, nor for Corallorhiza maculata; of 
these the latter is represented by two detached flowers only, 
collected near Chevy Chase, and by a specimen from North- 
ern New York. 
If the student should wish to see these Orchids in the her- 
barium, he will not find them under the generic names given 
in the new Flora, for the covers are hot labeled Habenaria, 
but Gymnadeniopsis, Perularia and Blephariglottis; Cypri- 
