Vll 



EXPLANATION OF PLATES. 



(The magnified portions are x 320 diameters, unless where otherwise stated.) 



PLATES I.— IX. 

 Pests — Flower Garden and Garden Vegetables. 



Fig. 1. — Phyllosticta helleborella , Sacc— a, section of perithecium enlarged; b, 



sporules x 

 2. — Septoria Hellebori, Thum.— a, section of perithecium enlarged ; b, 



sporules x 

 3. — Coniothyrium Hellebori, C. & M.— a, sporules x 

 4. — Ramidaria Hellebori, Fckl. — a, threads and conidia x 

 5. — Peronospora Ficarne, Tul. Hyphas and conidia x 

 6. — Plasmopara pygmcea, Ung. Hyphre and conidia x 

 7. — Urocystis Anemones, Pers. — a, glomerules of spores x 

 8. — JEcidium punctatym,'Pers. Two cluster- cups enlarged. — a, recidiospores x 

 9. — Glceosporium Aquilegice, Thum. — a, conidia x 

 10. — Ascochyta Aquilegice, Kourn. — a, section of perithecium enlarged ; b, 



sporules x 

 11. — Phyllosticta Pcvonue, S. & S.— a, section of perithecium enlarged; b, 



sporules x 

 12. — Cronartium Pceonicv, Cast.- a, column enlarged ; b, sporules x ; c, sporules 



germinating x 

 13. — Cladosporium Pceonice, Pass. Hyphse and conidia x 

 14. — Botrytis Pcsonice, Oud. Clusters of conidia in situ x 

 15. — Peronospora arborescens, Berk. Portion of thread with conidia x 

 16. — Cercospora Reseda, Fckl. — a, hyphse and conidia x 

 17. — Phyllosticta Viola, Desm.— a, section of perithecium enlarged ; b, 



sporules x 

 \S. — Septoria Violce, West.— a, section of perithecium enlarged ; b, sporules x 

 19. _ Urocystis Violce, Fisch. — a, glomerule of spores x 

 20. — Puccinia Violce, Solium, -a, uredospores ; b, teleutospores x 

 21. — JEcidium Violce, Schum. — a, cluster-cups ; b, aecidiospores x 

 22. — Puccinia cegra, Grove.— a, secidiospores ; b, uredospores; c, teleutospores x 

 23. — Eamularia lactea, Desm.— a, threads and conidia x 

 24. — Peronospora Violce, DBy. Hypha with conidia x 

 25.— Alternaria Violce, Gall. — a, conidia ; 6, germinating x 

 26. — Cercospora Violce, S. — a, hyphse and conidia x 

 27 .—Phyllosticta Dianthi, West.— a, section of perithecium enlarged ; b, 



sporules x 

 28. — Ascochyta Dianthi, A. & S. With sporules x 

 29— Septoria Lychnidis, Desm. With sporules x 

 SO.— Peronospora parasitica, Pers. Hypha with conidia x 

 31.— Septoria Sinarum, Speg.— a, section of perithecium enlarged ; b, sporules x 

 32,—Marsonia Delastrei, De Lacr. — b, conidia x 

 33. — Ustilago violacea, Pers. — a, anther ; b, spores x 

 Si.—Sorosporium Saponariai, Hud.— a, glomerule of spores x 

 35.— Puccinia Dianthi,DG.—a, uredospores; b, teleutospores x 

 36.— Puccinia Silenes, Schr.— a, uredospores; 6, teleutospores x 

 3T.— Uromyces Dianthi, Nssl.— a, uredospores; b, teleutospores x 

 38. — Macrosporium nobile, Vize.— a, conidium x 

 ■69.—Heterosporium echinulatum, lierk.— a, threads with conidia x 

 40.— Bacterium Dian thi, Ar. <fe B. — a, sporules x 2,000 

 41.— Phyllosticta destructiva, Desm.— a, section of perithecium enlarged ; b, 



sporules x 

 42.— Puccinia Malvaccarum, Corda.— a, teleutospores x 

 43. — Colletotrichum Althn<r, South.— a, conidia x 



44. — Melampsora Hypericorum, DC— a, uredospores ; b, teleutospores x 

 45. — Fusarium Pelargonii, Cooke. — a, conidia x 

 46. — Glozosporium Pelargonii, C. & M.— a, conidia x 



47.— Uredo Tropceoli, Desm a, uredospores x 



48.— Uromyces AnthylUdis, Grev.-a, uredospores ; b, teleutospores x 

 49. — Septoi-ia Rosarum, West. With sporules x 

 50. — Actinonema Rosea, Lib. With sporules x 



