464 
Pole Evans . — The Cereal Rtists. 
Literature. 
1. Arthur (J04) : Bot. Gaz., xxxviii, 64, 1904. 
2. (’06) ; Jour. Mycol., xii, 1906. 
3. Barclay : Journal of Bot., xxx, 45. 
4 . De Bary (’63) : Ann. des Sc. Nat., 4, xx. 
5. (’65) : Monatsber. Akad. Berlin, p. 23. 
6. Blackman (’04): Ann. Bot., xviii, July. 
7. Bolley (’06) : Bull. 68 North Dakota, p. 627. 
8. Carleton (’99) : Div. of Veg. Phys. and Path., Bull., xvi. 
9. Eriksson (’94) : Ber. Deutsch. Bot. Ges., xii, 310. 
10. (’96) : Zeitsch. f. Pfl.-Krank., vi, 197. 
11. . (’99) ; Ann. des Sc. Nat. 8, 9, 1899, P- 2 4 1 - 
12. (’01): „ ,, xiv, p. 101. 
13. (’02) : „ „ Nos. 8 and 15. 
14. — (’02): Ofv. Vet. Akad. Forh., p. 191. 
15. (’04): Kungl. Svenska. Vetenskaps. Akad. Handl., Bd. xxxviii, No. 3. 
16 . Eriksson and Henning (’ 94 ) : Zeitschr. f. Pfl.-Krank., iv, 141. 
17. (’96): Die Getreideroste. 
18. Eriksson and Tischler (’04) : Kungl. Svenska, Vetenskaps. Akad. Handl., Bd. xxxvii, No. 6. 
19. Kellerman (’05): Jour. Mycol., January 11, 1905. 
20. Klebahn (’92): Zeitsch. f. Pfl.-Krank., ii, 258. 
21. 
(’96) : 
? ? ? ? 
Y, 
332. 
22. 
- (’97) : 
vi, 
36. 
23. 
~ (’98) : 
>> >) 
viii, 338. 
24. 
(’00) : 
>) V 
x, 
77- 
25. 
(’04) : 
Ber. d. D. Bot. Ges., 
xxiij 
1 2.55- 
26. Muller (’00) : Vovl. Mitt. Bot. Centralbl., lxxxiii, 1900. 
27. (’01) : Bot. Centr., x, 181. 
28. Nielsen (’77) : Bot. Tidsskr., 3 R. 2, p. 26. 
29. Plowright (’82) : Gard. Chron., p. 234. 
30. (’83) : Grevillea, xi, 52. 
31. Sapin-Trouffy (’96) : Le Botaniste, p. 29. 
32. Marshall Ward (’88) : Ann. Bot., ii, p. 217. 
33. (’03) : Phil. Trans., cxcvi, B. 
34. (’05) : Ann. Bot., xix, Jan., p. 35. 
EXPLANATION OF PLATES XL-XLIII. 
Illustrating Mr. Pole Evans’s paper on Cereal Rusts. 
All the figures were drawn with the help of the camera lucida. 
Figs. 1-6, 28-30, 38-43 were drawn with No. 2 eye-piece, and Zeiss Achromatic Apert. 
1-30 Homog. Immers. 
The remaining figures were drawn with Zeiss Apochromat. 2 mm. Apert. 1-40 Homog. Immers., 
using the No. 2 eye-piece for Figs. 13, 14, 16, 17, 19-24, the compensating ocular 8 for Figs. 7-1 1, 
15, 18, 25-7, 31-7, 44, 45, and for Fig. 12 the compensating ocular 18. 
PLATE XL. 
Figs. 1-6. Uredo infection of P. graminis on Wheat. 
Figs. 7-12. Uredo infection of P. Phlei-pratensis on Phleum pratense. 
Fig. 1. Germination of uredospore of Puccinia graminis, with formation of appressorium over 
the stoma of wheat leaf. From a culture twenty-four hours old. 
