1899] Fernald, — Two ambiguous loosestrifes 131 
rigida Mill., with leaves reaching seven inches in length, decidedly 
longer than in the common form about here. E. B. HARGER, 
Oxford, Ct. 
Ar the approaching meeting of the American Association for the 
Advancement of Science, which occurs at Columbus, the home of the 
distinguished bryologists, W. S. Sullivant and Leo Lesquereux, the sub- 
ject of the mosses will receive a fitting prominence in the exercises of 
the botanical section. Historical papers on the development of 
American bryology will be read and a collection of important speci- 
mens, photographs, rare papers, microscopic preparations, portraits, 
manuscripts, etc., of special interest to moss-students will be brought 
together for exhibition. The following well-chosen committee have 
charge of this feature of the Columbus meeting : Professor C. R. Barnes, 
Univ. of Chicago; Mrs. N. L. Britton, N. Y. Botanical Gardens; 
Professor W. A. Kellerman, Ohio State Univ.; Dr. G. G. Kennedy, 
Readville, Mass. ; Professor L. M. Underwood, Columbia Univ. 
TWO AMBIGUOUS LOOSESTRIFES FROM THE NORTHERN 
STATES. 
M. L. FERNALD. 
(Plate 6.) 
A very handsome loosestrife, with racemes often a foot and a half 
long, has been collected in several parts of New England during the 
past few years. By some it has been considered a form of Zysimachia 
stricta, by some a form of Z. guadrifolia, while others have regarded it 
as intermediate between those two common species. Attention was 
recently called to the plant in New England by Dr. Geo. G. Kennedy, 
who collected it in 1889 at Sorrento, Maine, and in the following year 
at Milton, Massachusetts. In July, 1897, Messrs. Edwin Faxon, Ed- 
ward L. Rand and Emile F. Williams found it in some abundance on 
Mt. Desert Island ; in the autumn of that year Miss Kate Furbish brought 
from Gilead, Maine, fruiting specimens of the same thing; and in the 
summer of 1898 the writer was shown by Miss Rebecca Gill a draw- 
ing of the plant made by her at Peterboro, New Hampshire. 
