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. — Botryospharia dipludia, Moug. With asci and sporidia x 

 54. — Spharotheca pannosa, Lev. — a, conidia; b, conceptacle ; c, ascus and 



sporidia x 

 55. — Septoria Oenothera, West. With sporules x 

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



sporules x 

 57. — Lasiobotrys Lonicerce, Kunze. With asci and sporidia x 

 5$. — Oidium Chrysanthemi, Babh. — a, conidia v 

 59. — Uredo Chrysanthemi, Arth. — a, uredospores x 



60. — Puccinia CentaurecB, DC. — a, pustule on stem enlarged; b, uredospores x 

 61. — Coleosporium Scnccionis, Pers. — a, uredospores x 



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



63. — Puccinia Gentiance, Strauss. — a, uredospores ; b, teleutospores x 



64. — Phyllosticta primulcecola, Desm. — a, section of perithecium enlarged and 



sporules x 

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



sporules x 

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



sporules x 

 67. — Ovularia intei stitialis, Cooke. Threads with conidia x 



68 Ramularia Primula, Thum.— a, threads with conidia x 



69. — Uromyces Primula, DC. With teleutospores x 



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



70*. — Peronospora Candida, Fckl. — Besting spore x 



71. — Heterosporium Auricula, Cooke. — a, threads with conidia x 



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



germinating x 

 73. — Marsonia Ipomccce, C. & M.— a, conidia x 

 74. — Oidium crumpens, C. & M. — a, tuft enlarged; b, conidia x 

 75. — Urocystis primulicola, Magn. — a, glomerules x 



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



11. —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. — JEcidium Convallaria, Schum. — a, tccidiospores 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 Ornithogali, Klot.— a, threads with conidia x 

 86. — Uromyces Scillarum, Grew — a, teleutospores x 

 87. — Septoria brunncola, 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. Mystrosporiv/m 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 Brassicce, Curr. <i, section ; c, sporules x 



96. - Glozospori/um concentricum, Grev. — a, sporules x 



'.•7. —Cercospora Bloxami, Berk. 



9s. c ijslopus Candidas, J'ers. ; a, conidia; b, resting spore x 



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



spore x 

 1(H). S/ilh, irllii Inassicfi-iilii, Diihy. a, asci ; b, sporidia x 

 101. — Pla8modippkora Brassica, Wot. — Cell with sporules; a, zoospore x 

 1()2. Oidium Balsami/i, Mont. — conidia x 

 103.— Phyllosticta Armoracia, Cke. — a, sporules x 

 I'll. Ascochyta Armor aci<B, Fckl. -a, sporules x 

 in"). Ramularia Armoracia, Fokl. a, lupine and conidia x 

 L06. I romyces Faba, Pers. a, uredospores; b, teleutospores x 

 107.— Uromyces appmdiculatus, ox U. J'haseoli.-a, uredospores; b, teleuto- 

 spores X 



