Sept. 1905 ] Index to North American Mycology 229 
Sheldon, John L. A Report on Plant Diseases of the State. W. 
Va. Agr. Exp. Sta. Bull. 96:69-99. 30 June 1905. 
Sheldon, John L. Concerning the Identity of the Fungi caus¬ 
ing an Anthracnose of the Sweet-pea and the Bitter-rot of the 
Apple. Science, N. S. 22:51-2. 14 July 1905. 
Sheldon, John L. The effect of different soils on the develop¬ 
ment of Carnation Rust. Bot. Gaz. 40:225-9. Sept. 1905. 
Sida carpinifolia, host to Asterina sidae Earle n. sp. Bull N. Y. 
Bot. Gar. 3:(310). 30 June 1904. 
Sida carpinifolia, host to Dimerosporium appendiculatum Earle 
n. sp. Bull. N. Y. Bot. Gar. 3:(303). 30 June 1904. 
Silenes sp., host to Pleospora silenes Earle n. sp. Bull. N. Y. 
Bot. Gar. 3:(294). 30 June 1904. 
Smith, Erwin F. Bacteria in Relation to Plant Diseases. Vol¬ 
ume One. Carnegie Institution of Washington, Publication 
No. 27; I-XII, 1-285, PI- 1-31, text 1-146. Sept. 1905. 
Smith, Clayton O. The study of the Diseases of some Truck 
Crops in Delaware. Del. Agr. Sta. Bull. 70:1-16. 30 Mar. 
1905 - 
Soft Rot on the Sugar Beet (Bacterium teutlium Metcalf). 
Haven Metcalf. An. Rep. Nebr. Agr. Exp. Sta. 190.. 
17:69-ii2. 
Sphaeria (Hypocrea) setchellii Hark., syn. of Nigrosphaeria 
setchelli q. v. 
Spongiporus Murrill n. gen. Polyporaceae, type Polyporus leu- 
cospongia Cke. & Hark. Bull. Torr. Bot. Club, 32 :474- Sept. 
1905. 
Spongiporus leucospongia (Cke. & Hark.) Murrill n. n. [Poly¬ 
porus leucospongia Cke. & Hark.] Bull. Torr. Bot. Club 
32:474. Sept. 1905. 
Spores, Note regarding the Discharge of, of Pleurotus ostreatus. 
C. C. Hanmer. Torreya, 5 :i46-7. Aug. 1905. 
Stevia monardaefolia H B K., host to Coleosporium steviae Ar¬ 
thur n. sp. Bot. Gaz. 40:197. Sept. 1905. 
Stevia reglensis Benth., host to Coleosporium steviae Arthur n. 
sp. Bot. Gaz. 40:197. Sept. 1905. 
Stevia rhombifolia HBK., host to Coleosporium steviae Arthur 
n. sp. Bot. Gaz. 40:197. Sept. 1905. 
Stevia salicifolia Cav., host to Coleosporium steviae Arthur n. 
sp. Bot. Gaz. 40:197. Sept. 1905. 
Stevia trachelioides (DC.) Hook., host to Coleosporium steviae 
Arthur n. sp. Bot. Gaz. 40:197. Sept. 1905. 
Stevia viscida HBK., host to Coleosporium steviae Arthur n. sp. 
Bot. Gaz. 40:197. Sept. 1905. 
