EXPLANATION OF PLATES. ix 



Fig. 108. — Collet otrichum Lindemuthianum, Sacc. — a, section of pustule - 6, conidia x 

 109. — Ascochyta Pisi, Lib. — With sporules x 

 110. — Uromyces Pisi, Pers. — a, uredospores ; b, teleutospores x 

 111. — Erysiphc Martii, Lev. — a, conceptacle with appendages, enlarged. 

 112. — Sejitoria Petroselini, Desm. — With sporules x 

 113. — Puecinia Apii, Corda. — a, uredospores; b, teleutospores x 

 114. — Plasmopara nivea, Ung. — a, threads with conidia; b, tip of thread with 



conidia x 

 115. — Bremia Lactucce, Begel. — a, threads with conidia; b, tip of thread with 



conidia x 

 116. — Wusa/rium Solani, Mart. — Threads with conidia x 

 118. — PhytopJithora infestans, DBy. — Threads with conidium ; a, ripe conidiura 



separating ; b, zoospores x 

 119. — Sclerotinia Sclerotiorum, Mass. — a, sclerotia ; b, cups n.s. ; c, asci and 



sporidia x 

 120. — Cladosporium fulviim, Cooke.— a, threads with conidia x 

 121. — Macrosporium Tomato, Cooke. — Fruit with blotch, n. s. ; a, conidium x 

 122. — Puecinia Mentha;, Pers. — a, uredospores; b, teleutospores x 

 124. — Heterosporium variabile, Cooke. — a, hyphae and conidia x 

 125. — Pcronospora effusa, llab. — threads with conidia x 



120 Glceosporium orbicular e, Berk. — conidia x 



127. — Glceosporium lagenarium, Pers. — a, section of pustule ; b, conidia x 



128. — Oidium erysiphoides, Link. — conidia x 



129. — Ce'rcospora Melonis, Cooke. — a, thread with conidia x 



131. — Yennicularia circinans, Berk. — a, tuft of hairs, magnified ; b, hair and 



conidia x 

 132. — Fusariella atro-virens, Berk. — curved conidia x 

 133. — Puecinia Porri, Sow. — a, uredospores; b, teleutospores x 

 134. — Peronospora Schleideni, Ung. — thread with conidia x 

 135. — Sclerotinia bulborum, Wakk. — asci and sporidia x 

 136. — Mucor subtilissimus, Berk. — portion of thread ; a, sporules x 

 137. — Puecinia Asparagi, DC. — a, uredospores ; b, teleutospore x 

 138. — Mycogonc cdba, Letell. — hyphae and conidia x 



PLATES X., XL, XII. 

 Pests — Orchard, &c. 



Fig. 1. — Septoria pyricola , Desm. — Spotted leaf, section of perithecium and sporules 

 x400. 



2. — Oidium farinosum, Cooke Young leaves with mould; chains of conidia, 



and free conidia x 400. 

 3. — Fusicladium dendriticum, Wallr. — On Apple with threads and conidia 



x 400. 

 4. — Glceosporium fructigenum, Berk. — Spots on Apple with conidia x 400- 

 5. — Botryodiplodia pyrcnoplwra, Sacc. — On Apple twig; a, young conidia; 



b, mature conidia x 400. 

 6. — Nectria ditissuna, Tul. — Forming canker on branch ; a, fissure showing 



fungus ; b, perithecia, magnified ; c, sporidia x 400. 

 7. — Yalsa ambiens, Fr. — Pustules on branch ; a, conidia oozing in a tendril ; 



b, conidia x 400 ; c, asci and sporidia x 400. 

 8. — Bcestelia cancellata, Beb.— On Pear leaf, with receptacle and spores. 

 9. — Exoascus bidlatus, Tul. — On Pear leaf, with ascus and sporidia x 400. 

 10. — Entomosporium macidatum, Lev. — Spotted leaf with conidia x 400. 

 11. — Fusicladium pirinum,~L\b. — On Pear leaf, with threads and conidia x 400. 

 12. — Monilia fructigena, Pers.— Tufts of mould on fruit; a, section of tuft ; 



b, thread and conidia x 400. 



13. — Exoascus Pruni, Fckl. — Diseased fruits; a, asci with sporidia x 400. 



14. — Polystigma rubra, Pers.— On Sloe leaf; a, section of blotch; b, conidia ; 



c, ascus and sporidia x 400. 



15. — Puecinia Pruni, Pers. - On Plum leaf ; a, uredospores ; b, teleutospores 



x 400. 

 16.—Podosphcera tridactyla, Wall.— Conceptacle with fulcra, enlarged; a, ascus 



and sporidia x 400. 

 17. — Vncinula Prunastri, DC— Leaf with mould, and conceptacle, enlarged 



a, tip of appendage ; b, ascus and sporidia x 400. 



