186 The American Naturalist. [February, 
ical Statistics of Nebraska, Mr. Roscoe Pound ; The Comparative 
Anatomy of the Pistil in Apocarpous Families, Mr. Ernst Bessey: 
Phytogeographical Notes from Colorado, Mr. C. L. Shear. December 
26th—The Polyphylesis of the Lichens, Mr. F. E. Clements; The 
Phytogeography of Nebraska, Mr. Roscoe Pound: The Flora of Rob- 
erts County, South Dakota, Prof. D. A. Saunders; Washington and 
its Botanists, Mr. A. F. Woods. 
Botanical Seminar of the City of Washington, D. C.— 
December 12, 1896.—The following papers were presented: Short 
Notices of Current Literature; Synopsis of the Genus Cheetochloa, J. 
G. Smith ; The Origin and Development of Sexuality and Alternation 
of Generations, Considered from the Modern Cytological Standpoint, 
W. T. Swingle; Some Cases of Polyembryony, A. J. Pieters; Manu- 
facture of Cereal Foods, Mr. A. Carleton. 
Torrey Botanical Club.—At the meeting of Tuesday evening, 
December 8, 1896, thirty persons were present and one new active and 
seven corresponding members were elected. The death of Mr. Wm. 
H. Rudkin, one of the oldest members of the club, was announced by 
Dr. Britton, and a committee was appointed to take suitable action. It 
was resolved that a complete list of the corresponding members should 
be printed in the December number of the Bulletin. A contribution 
by Dr. T. F. Allen, entitled “ Descriptions of New Species of Nitella 
from North America and Japan,” was read by title by Dr. Britton in 
the absence of the author. Mrs. Elizabeth G. Britton presented a 
‘Contribution to the Bryology of Bolivia.” It reviewed the more im- 
portant collections of Bolivian mosses, the treatment which they had 
received and the present work in progress on this subject, and enumer- 
ated the bryological collections made by Dr. Rusby in Bolivia in the 
years 1885 and 1886. This collection contained 96 species, in 39 gen- 
era, 42 of the species being hitherto undescribed. Dr. H. H. Rusby 
spoke of “ Botany at the Pan-American Medical Congress held in the 
City of Mexico, November, 1896.” This paper contained brief refer- 
ences to the character >f the flora observed on the journey to Mexico, 
an account of the scientific progress in the city, especially pertaining to 
applied botany and referred to the botanical work organized by the 
Pan-American Medical Congress. It was supplemented by remarks 
upon the same subject by Mrs. Britton, who also attended the Congress. 
A number of important publications by the Instituto Medico Nacional 
were exhibited. Dr. N. L. Britton described a new species of Gera 
nium hitherto confounded with G. Carolinianum. The papers by Dr. — 
