835 
Williamsonia, whose affinities are exceedingly problematic. Thus 
far it has not been found attached to any stem, but the triangular 
apex is identical with that of many palms and is different from 
any part of any Williamsonia which I have had the opportunity to 
examine. It is to be hoped that future discoveries may include 
other parts of the plant and that its true nature and affinities may 
be determined beyond question. 
The Jeger Moss Herbarium. 
Jeger and Sauerbecks’ «Genera et Species Muscorum System- 
atici Disposita; seu Adumbratio flore muscorum totius orbis ter- 
rarum,’ was published serially between 1870 and 1878, in the 
Jahresbericht of the St. Gallischen naturwissenschaftlichen gesell- 
schaft in St. Gall, Switzerland. It is a bulky volume of 1550 
pages, which are not consecutive, being those of the original pub- 
lication, A list compiled from it isin use at Kew as a shelf index. 
Besides the names, the original citations are given, with the geo- 
graphical distribution and the numbers of the exsiccate in which 
the specimens have been distributed. The collection made by 
Dr. Jeger includes most of the numbers cited, and up to a recent 
date was in the possession of the Boissier Herbarium at Geneva. 
Through the kindness of M. Barbey, who offered the collection to 
us, and the generosity of several friends, it has recently been pur- 
chased and presented to the Herbarium of Columbia College. 
It is undoubtedly the most complete collection of exotic mosses 
in this country, occupying about 90 cubic feet. It is packed in 
large pasteboard boxes, the specimens laid loose in species covers 
of the standard size. We shall incorporate it into the general 
herbarium, designating the specimens by an appropriate stamp. 
The most valuable of the European Exsiccate are contained in it, 
there being such sets as the following : 
Breutel, Musci Frondosi Exsiccate. 
Breutel, Flora Germanica Kryptogamica. 
Rabenhorst, Bryotheca Europea. 
H. Miiller, Westphalischen Laubmoose. 
Wartman u. Schenk, Schweizerische Kryptogamen. 
