27 
4. Saliv lucida, Muhl. This is a small tree with glossy foliage, 
which is found in similar situations with the S. sericea. 
5. Salix nigra, Marshall. This is a well marked tree with black 
bark and yellow branches. Ihave not observed that it is variable. 
Indeed I have seen no young trees, but a number of old and 
picturesque ones over-hanging streams or shading watering-troughs. 
on old farms, doubtless planted there. 
6. Salix cordata, Mubl. A shrub growing in sandy flats subject 
to inundation. This is the most variable plant in its foliage, I - 
think, that I have ever met with. I should find it impossible to fix 
upon any definite characteristics of leaf or stipule. In the summer 
or fall it is difficult to believe that these Protean forms do not em- 
we several species, but the catkins reduce them to unity in the 
pring. 
Of the species of Salix which are called adventive, we have two :— 
__ |. Salix alba, L. A fine tree growing by the roadside and near, 
but not directly upon, the banks of streams. 
8. Salit purpurea, L, This shrub I found in a hollow place in the 
middle of an island in the Connecticutriver. These were staminate 
_ plants, but they seemed to be thriving and extending. It must 
ave been introduced there in some accidental way. 
There ought to be and probably are several more of our nativo 
willows in this locality, but I have not discovered them. 
I find the species of willows easier to distinguish at a distance 
of thirty to fifty rods than by a closer inspection. _ Several of the 
above have quite a marked character at a considerable distance, 
Which seems ¢o vanish on a nearer approach. 
Ann E. Brown, Brattleboro, Yt. 
36, Publieations—1. The Lens, a Quarterly Journal of Microscopy and 
the Allied Natural Sciences; No. 2, April, 1872; Chicago.—Mr. Bab- 
cock’s Flora of Chicago is continued from Saxifragacess to Campa- 
nulaces. It is interesting to notice how many of the plants most 
abundant with us are rare or wanting. Leucanthemum vulgare, L., 
18 even “cultivated inagarden.” To students of cryptogamic botany 
this publication must prove of great value—2. Mann’s Catalogue, 
Second edition, revised and corrected. B. Pickman Mann, Cambridge, 
ass. The preface contains the new species not yet included in 
Gray’s Manual, such as, Arceuthobium minutum, Engelm. Danthonia 
compressa, Aust.—3. In the Naturalist for May, Dr. Gray calls atten- 
tion to a question raised by Babington as to Anacharis. “It may 
be that we have two water weeds. . .one dicecious, the other herma- 
Phrodite. It is to be hoped that our botanists will examine the 
Plants they meet, and preserve specimens of any different kinds or 
Sexes of flowers they may detect.” : 
37, Mann’s Duplicates —Mrs. Mary Mann, 19 Follen street, Cambridge, 
ass., offers for sale foreign and native sets of these duplicates. 
llectors would, do well to send for a circular. _ 
38, Orehids.—Pggonia verticillata, Nutt., and Cypripedium 
Salisb.; in bloo May 19th, between Tennafly and the -aaetes 
