328 
SUMMARY OF CURRENT RESEARCHES RELATING TO 
Hypholoma by the viscid character of the pileus. Under Hypholoma 
three species, well known also in Europe, are described. The genus 
Pilosace is merely referred to. A. L. S. 
Green-spored Genus of Gill-fungi. — W. A. Murrill ( Mycologia , 
1922, 14, 97-8). Murrill describes a new genus, Chlorosperma , which 
differs from Schulzeria (also green-spored) by the absence of an annulus 
and by the adnate gills. The species G. olivaespora (Ellis and Ed.) 
comb. nov. grows on decayed wood, and has been found in several 
localities. A. L. S. 
Dark-spored Agarics. II. — W. A. Murrill ( Mycologia , 1922, 
14, 121-62). Murrill continues his study of this group, dealing with 
two genera, Gomphidius and Stropharia. Of the first genus three species 
are European, while four are indigenous to the United States. Stro- 
pharia is a much larger genus, containing twenty species in the States ; 
a fair number of these also are European. Four of those recorded are 
new to science. A. L. S. 
Effect of the Polypore, Fomes fulvus, on the Almond Tree in 
Italy. — Y. Rivera (Le Stazioni sperimentali agrarie italiane, 1921, 54, 
114-8; see also Bull. Agric. Intell. Rome , 1921, 12, 649-50). This 
fungus frequently attacks old almond trees in Italy. The branches on 
which the fructifications appear dry up first, and, as a general rule, the 
whole tree soon dies. The effect on the tissues of the tree and also on 
the soil, which it renders toxic, is described. The writer considers that 
pruning operations carelessly carried out are responsible for the spread 
of the disease. He recommends, above all, that the pruning knife be 
sterilized. Little can be done to save a tree once attacked. A. L. S. 
Research on Atmospheric Fungus Spores. — Kendo Saito {Jap. 
Journ. Bot., 1922, 1, 1-54, 3 pis.). The author in his summary affirms 
previous findings that the number of spores or conidia in the air varies 
according to the meteorological conditions. Contrary to expectation 
yeast cells were more abundant in cold than in warm seasons of the year. 
They are also more abundant in dry conditions. In strong winds there 
is considerable increase, while after heavy rain or snowfall there are 
few yeast cells present in the air. Colonies from air-borne yeasts were 
made of Saccharomyces , Debaryomyces , Pichia, Willia , Pseudosaccharo- 
myces , and a considerable number of species of Torula. Data are given 
concerning the collection of all these forms and the results of the 
cultures. A L. S. 
New or Noteworthy Fungi. IX. — W. B. Grove {Journ. Bot., 
1922, 60, 142-8, 1 pi.). The author continues his studies of Fungi 
Imperfect! . He has recognized a number of recently created genera, 
and has transferred to them the fungi that accord with the new con- 
ception of generic characters. Many new species are described. 
{Journ. Bot., 1922, 60, 167-77). Grove in this paper concludes 
his series on new fungi. The present list includes Fungi Imperfecti , 
Ustilagineas, Tremellinese {Achroomyces carpineus sp. n.), Ascomycetes 
with several species new to science, and Hyphomycetes, also with new 
