MISSOURI BOTANICAL GARDEN BULLETIN 17 
_ Von Schrenk, Hermann. “Creosote for Wood Block Pav- 
ing.” Engineering News, 1916. Ibid. Proc. Am. Soc. for 
Municipal Improvements, 1915. 
Zeller, 8. M. “Studies in the Physiology of the Fungi. 
II. Lenzites saepiaria Fries, with Special Reference to 
Enzyme Activity.” Ann. Mo. Bot. Gard., 1916. 
The investigations completed during the year by mem- 
bers of the Garden staff have been published for the most 
part in volume 3 of the Annals, and in the following para- 
graphs there are given briefly some indications regarding 
the significance and trend of these studies. 
Burt, E. A. (Ann, Mo. Bot. Gard. 3:203-241, 319-343), 
has continued this important monograph of the Thelepho- 
raceae of North America in successive numbers of the Annals. 
In the first paper the genus Hypochnus is treated. This has 
been soparated from the more closely related genera, Cor- 
ticium and Peniophora, by two characteristics: first, the 
session of echinulate spores, and second, in the production, 
usually, of colored spores. From other related forms the 
additional characteristic of a hypochnoid or loose structure 
is also of service. For the first time this generic name is 
made the basis of a natural group, and here all North 
American species are assembled and described. Thirty-one 
species are discussed, of which thirteen are new species and 
twelve new combinations. These figures indicate strikingly 
the service which has been done in working over this eo 
In the second paper there is given an account of Septo- 
basidium which, while not truly a member of the Theleph- 
oraceae, is included in this series of papers, since the 
form resemblance of these fungi to members of the family 
mentioned invariably brings the genus to the attention of 
mycologists interested in the Thelephoraceae. The genus 
is confined to tropical, or at least southern, localities, al- 
though a few northern stations are known. Its occurrence 
on living branches and its association with scale insects sug- 
gest an entomogenous habit. Seventeen species are dis- 
cussed, ten being new and one a new combination. Previous 
- work upon this genus has been done largely in France. 
Burt, E. A. (Ann. Mo. Bot. Gard. 3:403-406), in this 
paper discussed a new species of the club-shaped toadstool, 
this species being characterized by very simple structure and 
minute size; it is only one-tenth the size of the smallest toad- 
stool known heretofore. 
Bush, B. F. (Ann. Mo. Bot. Gard. 3:309-318), has pre- 
sented a key to the Missouri species of the genus Agrimonia 
—followed te a list with synonymy, citations, and localities 
