158 
Journal of Mycology 
[Vol. 9 
was found which was the destructive agent. Cultures were made 
in bouillon-agar, better success attained when hyphal bodies were 
used rather than conidia, but it was a very difficult matter to 
obtain pure cultures. The demonstration that Empusa can be 
grown artificially is important, yet Mr. Sheldon is not very san¬ 
guine as to its great economic importance. He says that “while 
little may be expected from an economic standpoint, there is some¬ 
thing to be gained from a study of its cultural characters both 
morphologically and taxonomically.” 
A Popular account of Anthracnose (Colletotrichum la- 
genarium (Pass.) Ell. & Hals.), Downy Mildew (Plasmopara cu- 
bensis (B. & C.) Humph.), Timber Rot (Sclerotinia libertiana 
Fckl.), Damping Off (Pythium debaryanum Hesse), and Pow¬ 
dery Mildew (Erysiphe polygoni DC.) —the most common dis¬ 
eases in Massachusetts occurring on Cucumbers—is published 
by George E. Stone in the Agr. Exp. Sta. Bulletin No. 87, pp. 
34-40, Feb. 1903. 
William Alphonso Murrill contributes his second 
paper on the Polyporace^: (the genus Pyropolyporus) to the 
Bulletin of the Torrey Botanical Club, 30:109-120, Feb. 1903. 
The name of Phellinus by Quelet, who first separated the Eu¬ 
ropean species into a distinct generic group, is regarded as un¬ 
tenable (preoccupied by Phelline in fam. Ebenaceae) and hence 
Pyropolyporus is proposed. A synopsis (key) is given of the 
18 N. A. species; also full notes and range-stations. Ten species 
are described as new. 
Nova Ascomycetum Genera Speciesque, auctore F. E. 
Clements, quattuor genera et triginta quattuor species in Bulletin 
of the Torrey Botanical Club, 30:83-94, Feb. 1903, descripta sunt. 
Explicatio et adnotationes Latine expressae sunt. Quaedam ra- 
tiones quae ab eodem auctore propositae erant in “Greek and Latin 
Nomenclature” (University Studies, Nebraska 3 :1-86) Dec. 1902, 
hie adhibitae sunt. Botanica nomina, quia scilicet non pura 
Latina verba vel quia hybrida sint, reicit; quam autem rationem 
non omnes botanici approbabunt. Neottiopezis pro Neottiella 
Cook, nomine hybrido, substituta est- Phleboscyphus pro Paxine 
nomine hybrido, praepositum est. 
The Secretary's Report, by W. F. Ganong, of the Wash¬ 
ington meeting of the Society for Plant Morphology and Physi¬ 
ology contains abstracts of the following four mycological articles: 
Notes on the Genus Herpomyces (Thaxter) ; On the ‘Blue’ Color 
of Coniferous Timber (von Schrenk) ; P. stewarti the Cause of 
Sweet Corn Disease of Long Island (Erw. F. Smith) ; and a 
Bacterial Disease, the cause of which enters the plant through 
Stomates (Erw. F. Smith). 
