21 
will probably be best known in the future. A considerable part 
of his collections was referred to other experts for critical study. 
To American botanists the greatest interest of his herbarium is 
in the large number of type specimens which it contains of species 
from South America and Tropical America described either by 
himself or other botanists ; he collected few duplicates, his rapid 
movements from place to place during his travels requiring that 
he should reduce his luggage to as small an amount as practic- 
able, and in a large number of cases the specimens obtained for 
the Garden by the generosity of Mr. Carnegie are thus unique, 
not being represented at any other institution. 
. L. Brirron. 
THE COLLECTIONS OF MOSSES AND HEPATICS. 
The moss collections at the Garden are arranged in two series, 
like those of the fungi, one in the museum of systematic botan 
on the second floor of the museum building and the other in the 
moss room and in the cryptogamic laboratory on the top floor. 
The former is for the benefit of teachers and the general public, 
the latter for the use of students only. 
The public museum collection consists of about 599 specimens 
and illustrations and is installed in 8 cases and 12 swinging 
frames. The structure of Punaria hygrometrica, Mnium cuspi- 
datum, Polytrichum commune, and two species of Frullania are 
also illustrated by microscopic exhibits. Specimens are mounted 
on blocks or cardboard or preserved in formalin. Illustrations 
have been obtained for most of the species exhibited, and speci- 
mens in bulk have been secured to show their habit of growth 
and general appearance. 
The swinging frames are designed to illustrate the local flora, 
or all species known to grow within a radius of 100 miles from 
New York City, and to give the range of each species and its 
common name: 468 species are included in this series, 384 of 
these being mosses and 84 hepatics. 
The study collection of these plants may be found on the top 
floor, the mosses in the cryptogamic laboratory, under Mrs. 
