July 1906] Notes from Mycological Literature 
183 
torium perfoliatum L. 8. Puccinia substerilis E. & E. — Am- 
phispores from Stipa viridula Trin. sown on the same host; 9. 
Puccinia seymouriana Arth. — Teleutospores from Spartina 
cynosuroides Willd. sown on Cephalanthus occidentals L.; 10. 
Uromyces acuminatus Arth.—Teleutospores from Spartina cyno¬ 
suroides Willd. sown on Steironema ciliatum (L. ) Raf. 
Fred. J. Seaver describes a new species of Sphaerosoma 
[S. echinulatum] in the Journal of Mycology, Jan. 1905. The 
plant was collected on the surface of damp soil between the tufts 
of grass in an open place on the margin of the woods. It is illus¬ 
trated by a full page plate. 
A Disease of Black Oaks caused by Polyporus obtusus 
Berk, is presented by Perley Spaulding in the 16th Annual Re¬ 
port of the Missouri Botanical Garden, 1905. The species is 
American — not very generally known — and Mr. Spaulding has 
found it causing disease locally in Missouri and northern Arkan¬ 
sas. It is a true saprophyte. The rot extends up and down in 
the heart wood until the tree is so weakened that it breaks over 
or dies outright. It was found that the sporophores were grow¬ 
ing out of the entrances of burrows made by some wood-boring 
insects. Three half-tone plates illustrate the species and two 
illustrate the insects burrows. 
Through inadvertancy a cut to appear on p. 56 was omitted, 
the same being inserted below: 
Pseudostegia nubilosa Bubak. — Radialer Schnitt: ep, deckelartig 
aufgehobene Epidermis mit den Scheiteln der dekapitierten Zelien; b 
Borsten; h, Hyphostroma; m Mycel. (240/1). 
