X EXPLANATION OF PLATES. 



FIG. 18. Cladosporium epiphyllum, Link. Nodules of gum on twig. Threads and 

 conidia x 400. 



19. Gnomonia erythrostoma, Awd. Spots on Cherry leaf ; a, section of con- 

 ceptacle ; b, conidia ; c, section of perithecium ; d, sporidia x 400. 



20. GloBosporium l&ticolor, Berk. Spot on fruit ; a, conidia x 400. 



21. Uromyces Amygdali, Pass. Rust on Peach leaf ; a, spots enlarged ; b, teleu- 

 tospores x 400. 



22. Coryneum. Beijerinckii, Oud. Pustule with conidia x 400. 



23. Exoascus deformans, Berk. Curl on Peach leaf; a, section of blister, 

 enlarged ; b, ascus and sporidia x 400. 



24. Hclminthosporium rhabdiferum, Berk. Conidia x 400. 



25. Micrococcus amylovorus, Burr. Families, and sporules x 400. 



26. Marsonia Juglandis, Lib. On Walnut leaf ; b, section of pustule ; a, 

 conidia x 400. 



28. Phleospora Mori, Lev. On Mulberry leaf, with conidia x 400. 



29. Cercospora moricola, Cooke. On Mulberry leaf with threads and conidia 

 x 400. 



30. Clasterosporium parasiticum, Cooke. Conidia x 400. 



31. Septoria Ribis, Desm. On Currant leaf ; a, section of receptacle ; 6, conidia 

 x 400. 



32. Glceosporium Ribis, Lib. On Currant leaf ; a, conidia x 400. 



33. jEcidium Grossularics, Gmel. Cluster on Gooseberry leaf ; a, cluster-cup ; 

 b, aecidiospores x 400. 



34. Microsphcera Grossularicc, Lev. Conceptacle with appendages enlarged, tip 

 of appendage further magnified. 



35. Phyllosticta pallor, Berk. Spots on Raspberry cane; a, section of peri- 

 thecium ; b, sporules x 400. 



36. Glceosporium venetum, Speg. Spots on Raspberry cane ; a, section of pus- 

 tule ; 6, conidia x 400. 



38. Phyllosticta fragaricola, Desrn. Spots on Strawberry leaflet ; a, sporules 

 x400. 



39. Septoria Fragarice, Desm. Spots on Strawberry leaflet, with section of 

 perithecium and sporules x 400. 



40. Glososporium Fragarice, Lib. Spots on Strawberry leaflet, with pustule 

 enlarged and conidia x 400. 



4l.Ramularia Tulasnei, Sacc. Spots on Strawberry leaflet, with threads and 

 conidia x 400. 



42. Spharella Fragarice, Sacc. Ascus and sporidia x 400. 



PLATES XIII., XIV., XV. 



PESTS VINERY AND STOVE. 



F IG . i. Phyllosticta Badhami, Cooke. a, section ; b, sporules x 400. 



2. Septoria Badhami, Berk. a, section ; b, sporules x 400. 



%. Glceosporium rufomaculans, Berk. With sporules x 400. 



4. Glceosporium uvicola, Berk. a, pustule ; b, sporules x 400. 



5. Glceosporium ampelophagum, Pass. a, section with sporules x 400. 



6. Cercospora viticola, Sacc. a, hyphse with conidia x 400. 



7. Isariopsis clavispora, B. & C. a, cluster of hyphae with conidia x 400. 



8. Oidium Tuckeri, Berk. a, conidia ; b, free conidia ; c, pycnidia. 



9. Guignardia Bidwellii, Viala. a, conidia ; 6, ascus and sporidia x 400. 

 W.Plasmopara viticola, B. & C. a, hypha with conidia ; b, resting-spore x 400. 

 11. Sclerotinia Fuckeliana, DBy. a, Botrytis form ; b, Peziza ; c, ascus and 



sporidia x 400. 



12. Plasmodiophora Vitis. a, cell with spores ; b, spores ; c, mobile spores. 

 13. Uncinula spiralis, B. & C. Perithecium with appendages ; a, ascus and 



sporidia x 400. 



14. Glceosporium Hendersonii, B. & Br. With sporules x 400. 

 15. Macrosporium Camellia., C. & M. a, hyphse ; 6, conidia x 400. 

 16. Gardenia canker. a, section with sporules x 400. 

 17. Pestalozzia Guepini, Desm. a, section ; b, conidia x 400. 

 18. Glceosporium affine, Sacc. a, with sporules x 400. 

 19. Phyllosticta Bolleana, Sacc. a, section with sporules x 400. 

 20. Dematophora necatrix, Hart. a, brown hyphae ; 6, tip of conidiophore ; 

 c, stylospores ; d, ascospores x 400. 



