Feb. 1903] Index to North American Mycology 
51 
Rots, Apple, see Clinton, G. P., Apple Rots in Illinois. 
Rubus occidentalis, host to Venturia rubicola E. & E. n. sp. 
Jour. Mycol. 8:15. May 1902. 
Rubus strigosus, host to Physalospora minima E. & E. n. sp. 
Jour. Mycol. 8:17. May 1902. 
Rubus strigosus, host to Plhysalospora vagans E. & E. n. sp. 
Jour. Mycol. 8 : 6 y. June 1902. 
Rubus villosus, host to Mollisia alabamaensis E. & E. n. sp. 
Jour Mycol. 8:69. June 1902. 
Rubus villosus, host to Physalospora obtusa (Schw.) Cke. Jour. 
Mycol. 8:67. June 1902. 
Rubus sp., host to Uredo ochraceo-flavidus P. Henn. n. sp. Bei- 
. blatt zur Hedwigia, 4i:(ioi). Mai-Juni 1902. 
Rubus sp., host to Uromyces pittieranus P. Henn. n. sp. Bei- 
blatt zur Hedwigia, 41 :(ioi). Mai-Juni 1902. 
Rudbeckia laciniata (cult.) dead stems, host to Colletotrichum 
rudbeckiae Peck n. sp. N. Y. State Mus. Bull. 541956. 
Nov. 1902. 
Rumex crispus, host to Vermicularia rugulosa E. & E. n. sp. 
Jour. Mycol. 8 173. June 1902. 
Rumex geyeri (Meisn.) Trek, host to Uromyces rickerianus Ar¬ 
thur n. sp. Bull. Torr. Bot. Club, 29 1227. Apr. 1902. 
Russula, A Key to the North American Species. — I. F. S. 
Earle. Torreya, 2:101-3. July 1902. 
Russula, A Key to the North American Species. — II. F. S. 
Earle. Torreya, 2:117-9. Aug. 1902. 
Russula cremoricola Earle n. sp. Bull. N. Y. Bot. Garden, 
2:(340). 25 Apr. 1902. 
Russula paxilloides Earle n. sp. Bull. N. Y. Bot. Garden, 
2:(341). 25 Apr 1902. 
Russula pulverulenta Peck n. sp., woods. Bull. Torr. Bot. Club, 
29 :yo. Feb. 1902. 
Russula ventricosipes Peck n. sp., sandy soil under or near pine 
trees. Bull. Torr. Bot. Club, 29 :yo. Feb. 1902. 
Rust, Asparagus, see Asparagus Rust. 
Rust, To Rid Chrysanthemums of. J. C. Arthur. Gardening, 
11:72. 15 Nov. 1902. 
Rusts, Apple, see Notes on Apple Rusts. . 
