1903] CURRENT LITERATURE 313 
his plans for cultivation of these species on a considerable scale in the open. 
M. Louis Matruchot later presented a note to the Academy of Sciences in 
which he announced for the mycelium of these truffles characters absolutely 
contrary to those given by M. Boulanger. M. Boulanger has now published 
a quarto pamphlet,° figuring and describing the germination of the ascospores 
Tuber melanosporum, in which he also has reprinted extracts from the pro- 
ceedings of the Academy of Sciences and the Bulletin of the Mycological 
Society of France, of various dates. From the description which he gives 
and the terminology used it would appear that he is absolutely unqualified by 
a knowledge of the morphology of fungi to discuss the recondite matters 
upon which he is engaged.—C. R. B 
IN BULLETIN 44 of the Bureau of Plant Industry, von Schrenk and Spauld- 
ing”? give an excellent account of the bitter rot, which is one of the most 
serious enemies of the apple industry in the middle states, The bulletin 
deals first with the disease as it appears on the fruit, and later with the canker 
stage, which is shown to arise from the infection of wounds by spores, and to 
enable the fungus to live through the winter. Both phases are illustrated by 
numerous excellent half-tone engravings. The growth of the fungus in cul- 
tures is also treated. In describing the germination of the spores the authors 
follow the error of many other writers in regarding the appressoria as some 
kind of “ chlamydospore.”’ 
From the historical review it appears that the bitter rot fungus has been 
described under various names on grapes, apples, peaches, and nectarines. 
Recently the ascus-form of several anthracnoses has been discovered. Those 
species were separated as a genus, Gnomoniopsis Stoneman, Since this name 
had been previously used, the authors propose the name Glomerella® for all 
anthracnoses whose ascus-form is known. The bitter rot fungus, through 
synonymy, becomes Glomerella rufomaculans Spaulding and von Schrenk. 
The paper concludes with a very comprehensive bibliography.—H. HASSEL- 
BRING, 
THE succkss of Dr. Grout’s little book Mosses with a hand lens, has 
led him to publish a new and larger work, of more extended scope. Even 
this makes no pretensions to being a complete manual, but is intended rather 
to attract and help students who would otherwise never begin the study of 
6 BOULANGER, M. EMILE, Germination de l’ascospore de la truffe. pp. 20. pls. 2. 
Paris. 1903. Apparently published by the author. 
7VON SCHRENK, H., and SPAULDING, P., The bitter rot of apples. Bull. no 44. 
Bureau of Plant Industry. U.S. Dept. of Agric. pp. 54. f/s. 9. figs. 9. 1903. 
8 Also published in Science N. S. 17:75. O 1903. 
9GrRouT, A. J., Mosses with hand lens and microscope, a non-technical hand- 
book of the more common mosses of the northeastern United States. Part I. P 
8vo. pp. i+ $6. pls. ro. figs. 35. Brooklyn, N. Y., 360 Lenox Road: Published by the 
author. 1903. $1. 
