Journal of Mycology 
VOLUME lO — .TAC^sUIyAIEY 1904 
TABLE OF CONTENTS 
Morgan — A New Sirothecium. 1 
Hedgcock — Proof of the Identity of Phoma and Phyllosticta on 
the Sugar Beet. 2 
Atkinson — Notes on the Genus Harpochytrium. 3 
Arthur — Cultures of Uredineae in 1903. 8 
Kellerman — Notes from Mycological Literature VIII. 21 
Krluerman — Index to Uredineous Infection Experiments. 26 
American Mycological Society. 46 
Editor’s Notes . 48 
A NEW SIROTHECIUM. 
A. P. MORGAN. 
Sirothecium fragile Morgan sp. nov.—Perithecia super¬ 
ficial, globose or obovoid, crowded together on a thin white subi- 
culum; the wall smooth, black, fragile, the upper part very thin 
and evanescent, the lower portion thicker and more persistent, 
supporting as in a cup the brown globular mass of spores. The 
inclosed hymenial hyphae, at maturity, wholly abjointed into 
long slender, branched chains of spores. Spores short-cylindrical, 
obtuse at both ends, smoky-pellucid, 4-5 x 2 mic. 
Growing on old wood of Nyssa, Preston, O. Dec. 1903. 
Perithecium 100-125 mic. in diameter; the wall breaking up 
irregularly, the upper portion soon disappearing. 
The resemblance of this species to the obscure Bloxamia is 
very striking, but the spores are not “generated in closely packed 
tubes.” See Cooke’s Handbook page 934. 
