Vlll EXPLANATION OF PLATES. 



FIG. 51. Phragmidium subcorticium, Schr. a, uredospores ; b, teleutospore x 

 52. Peronospora sparsa, Berk. Portion of thread with conidia x 

 53. Botryospliaria diplodia, Moug. With asci and sporidia x 

 54. Spliarotheca pannosa, Lev. a, conidia; 6, conceptacle ; c, ascus and 



sporidia x 



55. Septoria (Enotherce, West. With sporules x 

 56. Phyllosticta Lonicera, West. - a, section of perithecium enlarged ; b, 



sporules x 



57. Lasiobotrys Lonicera, Kunze. With asci and sporidia x 

 58. Oidium Chrysanthemi,Ra.bh.a, conidia x 

 59. Uredo Chrysanthemi, Arth. a, uredospores x 



60. Puccinia Centaurea, DC. a, pustale on stem enlarged ; b, uredospores x 

 61. Coleosporium Senecionis, Pers. a, uredospores x 



62. Phoma devastatrix, B. & Br a, receptacle enlarged ; b, sporules x 



63. Puccinia Gentiana, Strauss. a, uredospores ; b, teleutospores x 



64. Phyllosticta primulacola, Desm. a, section of perithecium enlarged and 



sporules x 

 65 Ascochyta Primula, Trail. With section of perithecium enlarged ; and a, 



sporules x 

 68. Septoria Primula, Buck. With section of perithecium enlarged ; a, 



sporules x 



67. Ovularia inter stitialis, Cooke. Threads with conidia x 

 68 Eamularia Primula, Thum. a, threads with conidia x 

 69. Uromyces Primulce, DC. With teleutospores x 

 70. Puccinia Primula, DC. - a, uredospores ; b, teleutospores x 

 70*. Peronospora Candida, Fckl. Besting spore x 

 1\. Heterosporium Auricula, Cooke. a, threads with conidia x 

 72. Puccinia Vinca, Berk. a, uredospores ; b, teleutospore ; c, secidiospore 



germinating x 



73. Marsonia Ipomcea, C. & M. a, conidia x 

 74. Oidium erumpens, C. & M. a, tuft enlarged ; 6, conidia x 

 75. Urocystis primulicola, Magn. a, glomerules x 

 76. Ramularia Petunia, Cooke. a, threads with conidia x 

 77. Septoria Lavandula, Desm. a, section of perithecium enlarged ; b, 



sporules x 

 78. Peronospora Hyoscyami, DBy. Portion of thread with conidia x ; a, 



conidium germinating x 

 79. Uredo filicum, Desm. a, uredospores x 

 80. Botrytis elliptica, Berk. Portion of thread with conidia x 

 81. ^Ecidium Convallaria, Schum. a, cecidiospores x 

 82 Rhizopus necans, Mass. Tuft x 5 



83. Uromyces Ornithogali, Wallr. a, pustules enlarged ; b, teleutospores x 

 84. Puccinia Liliacearum, Duby. a, teleutospores x 

 85. Heterosporium OrnitJiogali, Klot. a, threads with conidia x 

 86. Uromyces Scillarum, Grev. a, teleutospores x 

 87. Septoria brunneola, Fries a, sporules x 

 88 Botrytis galanthina, B. & Br. Apex of thread with conidia x 

 89. Puccinia Schroeteri, Pass. a, teleutospores x 



90. Heterosporium gracile, Wallr a, threads with conidia x 



91. Puccinia Iridis, DC. a, uredospores ; b, teleutospores x 



92. Mystrosporium adustum, Mass. Conidia x 



93. Uromyces Colchici, Mass. a, teleutospores x 



94. Urocystis Colchici, Schl. a, glomerules x 



94*. Urocystis Gladioli, Smith. Glomerule with spore x 



95. Phyllosticta Brassica, Curr. a, section ; c, sporules x 



96. Glo2osporium concentricum, Grev. a, sporules x 



97. Cercospora Bloxami, Berk. 



98. Cystopus candidus, Pers. ; a, conidia ; b, resting spore x 



99. Pythium DeBaryanum, Hess. a, formation of resting spore ; b, resting 



spore x 



IQQ.Spharella brassicacola, Duby. a, asci ; b, sporidia x 

 lOl.Plasmodiophora Brassica, Wor. Cell with sporules ; a, zoospore x 

 102. Oidium Balsamii, Mont. conidia x 

 103. Phyllosticta Armor acia, Cke. a, sporules x 

 104. Ascochyta Armoracics, Fckl. a, sporules x 

 105. Ramularia Armoracice, Fckl. a, hyphae and conidia x 

 106. Uromyces Faba, Pers. a, uredospores ; b, teleutospores x 

 107. Uromyces appendiculatus, or U. Phaseoli.--a, uredospores; b, teleuto- 

 spores x 



