Sept. 1904 ] Index to North American Mycology 279 
Ribes laxiflorum, host to Pseudovalsa ribesia Sacc. & Scalia n. sp. 
Alaska, Har. Exped. 5 129. 5 April 1904. 
Ribes laxiflorum, host to Rhynchophoma raduloidea Sacc. & 
Scalia n. sp. Alaska, Har. Exped. 5 120. 5 April 1904. 
Ricker, P. L. and Kellerman, W. A., see Kellerman, W. A. and. 
Ricker, P. L. Notes on Fungi, I. New or Interesting Ameri¬ 
can Uredineae. Jour. Mycol. 10:165. July 1904. 
Romellia Murrill n. g. [Polyporaceae; type, Boletus sistot- 
remoides Alb. & Schw. known as Polyporus schweinitzii 
Fr.] Bull. Torr. Bot. Club, 31:33s. June 1904. 
Romellia see Polyporaceae of North America — VII. The 
Romellia sistotremoides (Alb. & Schw.) Murrill n. n. [Boletus 
sistotremoides Alb. & Schw., Polyporus schweinitzii Fr., 
Daedalea epigaea Lenz, Polyporus tabulaeformis Berk., P. 
spectabilis Fr., P. hispidioides Peck, Polystictus schweinitzii 
Karst., Cladomeris Schweinitzii Quel.] Bull. Torr. Bot. 
Club, 311339. June 1904. 
Rot, Soft, of the Calla Lily. [Bacillus aroideae n. sp.] C. O. 
Townsend. U. S. Dept. Agr. Bureau PL Industry, Bull. 
60:1-46. 30 June 1904. 
Rubus, fading leaves, host to Fabraea cincta Sacc. & Scalia n. 
sp. Alaska, Har. Exped. 5 :23. 5 April 1904. 
Rubus stellatus, host to Venturia kunzei ramicola Sacc. & Scalia 
n. sp. Alaska, Har. Exped. 5:31. 5 April 1904. 
Russula densifolia paxilloides Peck n. var., among decaying 
leaves in woods. N. Y. State Mus. Bull. 75 :20. 1904. 
Rusts, Investigations of. Mark Alfred Carleton. U. S. Dept. 
Agr. Bureau PL Industry, Bull. 63:1-32, PL I-II. 12 July 
1904. 
Queletia mirabilis. [Distribution. Figure. Lloyd.] Myc. 
Notes, No. 17:185. June 1904. 
Salix, host to Sphaerella grossulariae salicella Sacc. & Scalia 
n. var. Alaska, Har. Exped. 5 :32. 5 April 1904. 
Sanguisorba, living leaves, host to Ovularia bulbigera (Fuckel) 
Sacc. Alaska, Har. Exped. 5:17. 5 April 1904. 
Saxifraga neglecta stolonifera, host to Puccinia laurentiana Tre- 
lease n. sp. Alaska, Har. Exped. 5 :38. 5 April 1904. 
Saxifraga parviflora, host to Laestadia saxifragae Sacc. & 
Scalia n. sp. Alaska, Har. Exped. 5 :33. 5 April 1904. 
Scleroderris treleasei Sacc. n. sp., on coniferous bark. Alaska, 
Har. Exped. 5 :24. 5 April 1904. 
Selinum gmelini, host to Cercospora apii selini-gmelini Sacc. & 
Scalia n. var. Alaska, Har. Exped. 5: 16. 5 April 1904. 
