88 
no other species, I have after long hesitation decided to put it 
here. This in view of the well-known fact that the number of 
florets in the Composite frequently varies. The Syn. Flora puts. 
F. Contrayerba under species with three-to-five-flowered heads, 
while the Missouri plant has them five-to-eight-flowered. Further, 
the typical plant is said to have “ligule not exceéding disk or 
wanting ;”” in this plant the ligule does exceed the disk flower, as 
stated. It would certainly seem possible, and probable, that this 
character might be subject to the same variation as the number 
of florets. Rather than make it a new species, therefore, or even 
a new variety, I have assumed that the assigned distinguishing 
characters must be subject to variation, and that the Missouri plant 
is still this species. JOHN M. HOLZINGER. 
U.S. Dept. Agric. 3 : 
Specimens of Haloragee desired. The subscriber being en- 
gaged in a special study of the North American Haloragee, 
wishes to examine plants of the family from all parts of the 
country, and will be greatly obliged to any of his correspondents 
or other botanists who will supply him with specimens. 
Columbia College, Feb. 24. THOMAS MORONG. 
Phlox bifida, again. Since the appearance in the November 
number of the BULLETIN of my note entitled, “‘ Geographical Dis- 
tribution of Phlox bifida,” I have received specimens and communi- 
cations which goto show thanit has a more extended range than has 
been assigned to it. I have received specimens from J. J. Davis, 
of Racine, Wis., who informs me that they were collected on the 
sandy banks of Cedar River, at Vinton, Ia., where it grew abun- 
dantly. Prof. Beal, of Agricultural College, Mich., has sent me 
specimens collected by C. F. Wheeler the past season, on the 
shore of Klinger Lake, St. Joseph Co., Mich. As yet I have re- 
ceived no confirmation of a Missouri habitat. I would be glad to 
hear from any botanist who knows of its existence in that State. 
- FRANK E. MCDONALD. 
Review of Foreign Literature. 
_ Leitfaden der Botanischen Mikroskopie. Wilhelm Behrens. 
Braunschweig Harald Bruhn, Oct. 1890. 
_ It may be desirable to call the attention of the readers of the 
