212 PITTONIA. 
the several characters indicated. I know it only from speci- 
mens collected at Lake Saratoga, in the Adirondack Moun- 
tains, N. Y., Aug., 1894, by T. F. Allen. 
* M. Remora. Smaller than either of the foregoing; sub- 
mersed capillaceous foliage less ample, very thin, promptly 
collapsing, the emersed leaves rather numerous, more 
slenderly and pectinately toothed: head small: rays some- 
what cuneate-oblong, with 3 prominent nerves and 3 to 5 
much less distinct intermediary ones, the apex acutish, 2 or 
3-toothed : styles short and their branches less acute: awns 
of the pappus nearly naked, showing only about 5 or 6 
aculeole at the very summit. 
Far-western species, known only from Green Lake near 
Seattle, Washington, where it has been collected in flower 
by Prof. C. V. Piper. 
8. Some New Eupatoriacez. 
Among the various genera that have been taken out of 
the Linnsean Hupatorium, it seems to me difficult to name 
one which is better entitled to stand than De Candolle's 
CowocLiNiUM. Dr. Gray, in reducing the group to Hupato- 
rium again, does a serious injustice to its merits; for he says 
that, except as to the character of the receptacle, which is 
conical, rather than plane as in all other Eupatoria, it does 
not differ from that other group of which E. aromaticum is 
typical Now, along with the excellent character of the 
conical receptacle, it has two others all its own. The invo- 
luere, though consisting of equal bracts, presents them in 
about three series, while in E. aromaticum and its kindred 
they are about one-third as numerous and are uniserial. 
But they are different both in form and in texture, in these 
