190 Recent Literature. 45 (208 
Professor Trelease adopts, in accordance with Mr. Baker’s views, 
the name, ‘‘ Hesperoyucca ” for Yucca Whipplez, which he separates 
“as a generic type. The article is accompanied by many excel- 
lent plates. 
North American Silenee and Polycarpee. By B. I,. ROBINSON. 
Being the fifth of the new series of Contributions from the Gray 
Herbarium. This tentative revision is preliminary to treatment 
of the Caryophyllaceze in the Synoptical Flora and its object is 
stated to be ‘‘chiefly to secure aid through criticisms, and to 
call attention to such species, especially in the genera Sz/ene and 
Lychnis as are still imperfectly known, so that if possible more 
complete material of them may be secured before final 
revision.’’ The author evidently doubts the validity of certain 
accepted species of Silene and his remarks upon the distortion of 
the flowers of the type of Sz/ene Lyalli by a well-known fungus 
are very suggestive. One new species of Lychnis, L. Zaylore, 
and two of Silene, S. Watsoni (changed from Lychnis Californica) 
and S. scaposa are proposed. 5S. simulans is reduced to SS. laciniata, 
S. incompta to S. Bridgesit, S. plicata to S. Thurberi, S. Shockleyt 
to S. montana, S. Macounti & S. monantha to varieties of .S. 
Douglasii; S. purpurea is admitted ‘‘ but not seen by the author.” 
With the treatment of Lceflingia we do not agree and hope that 
fuller material will convince the author that there are not three 
American species. The appearance of a revision of the remain- 
ing genera is awaited with much interest, and from Dr. Robin- 
son’s opportunities and well-known conscientiousness in research 
it cannot fail to be valuable. 
Contributions from the Herbarium of Columbia College, No. 
35. An Enumeration of the Plants collected by Dr. Thomas Morong 
in Paraguay, 1888-1890. By Tuomas Moronc and N. L. 
BRITTON, with the assistance of Miss ANNA MURRAY VAIL, 
Reprinted from Annals of the New York Academy of Sciences 
vol. vii. The paper is of much consequence to the flora of 
South America. It has the interest which always attaches to 
botanical papers where the author has been at once collector and 
. 
writer. 
Forest Influences—Bulletin No. 7 of the Forestry Division, U. 
