a eee eT a oP aii od dh 3 
124 PROCEEDINGS OF THE AMERICAN ACADEMY 
IX. 
CONTRIBUTIONS FROM THE GRAY saps ag OF HARVARD 
UNIVERSITY, NEW SER 
V.—THE NORTH AMERICAN SILENEZ AND 
POLYCARPEZ. 
By B. L. Rosinson. 
|p atten 
Presented April 12, 1893. 
TuE following study of the Stlenee and Polycarpee is preliminary 
to treatment of these tribes of the Caryophyllacee in the “ Synoptical 
Flora of North America.” The object of the present publication 
is chiefly to secure aid through criticisms, and to call attention to such 
species, especially in the genera Silene and Lychnis as are still imper- 
fectly known, so that if possible more complete material of them may 
be secured before final revision for the first volume of the Synoptical 
Flora. Specimens of these groups, especially puzzling forms from 
the West and Northwest, together with notes concerning any points 
not properly covered by the following descriptions, will be gratefully 
received by the author, who here cordially acknowledges the valuable 
assistance already rendered him in his work by the late Dr. George 
Vasey and Dr. J. N. Rose, of the Department of Agriculture ; Prof. N. 
L. Britton of Columbia College; Mr. and Mrs, T. S. Brandegee and 
Miss Alice Eastwood, of the California Academy of Sciences; Prof. John 
Macoun, of the Canadian Geological Survey ; Mr. John H. Redfield, 
of the Philadelphia Academy of Natural Sciences; Mr. John Donnell 
Smith, and others, whose names are mentioned in the text. In the 
enumeration of synonyms and the citation of literature Dr. Sereno 
Watson’s “ Bibliographical Index” has been a most useful guide; 
80 far as possible, however, all references to literature as well as points 
of sy nonymy, from whatever source, have been subjected to careful 
Verification. 
CARYOPHYLLACE, Trise I. SILENEZ. Sepals united 
into a 4-5-toothed or lobed tube or cup. Petals unguiculate and often 
scale-bearing at the junction of the blade and claw, borne together with = 
