Fungoid diseases of plants (colour litho)

Fungoid diseases of plants. 1. Smut (Ustilago carbo); a. on oats; b. on wheat; c. on barley; c. spores; e. spores germinating; 2. Bunt (tilletia caries) on the grain of wheat; c. the attacked grain in section; 3. Smut (Urocystis occulta) on rye; b. the multicellular spores; 4. Ergot (Claviceps purpurea) on rye; a. ear of rye with with sclerotia of ergot; b. sphacelia stage; c. young ovary attacked; d. sclerotia bearing seven stromata; e. stroma in section; f. perithecium in section; g. ascus with ascopores; 5. Corn Mildew (Puccinia graminis); a. teleutospores (Puccinia stage) on leaf sheath of corn; b. uredo stage on leaf of corn; c. barberry, with Aecidium stage; d. uredospore germinating; e. uredospores and teleutospores on the same mycellium; f. teleutospore germinating; g. aecidia and antheridia in barberry leaf, in section; 6. vine mildew (oidium tuckeri); b. the same magnified, showing acrospores; 7. potato diseases (phyophthora infestans); a. potato leaf attacked; b. sporangiophore emerging from stoma; c. zoospores; d. spore penetrating epidermis; e. hypha entering stoma; 8. Rhytisma accerinum on leaf of maple; 9. Hysterium nervisequium on leaves of fir; 10. Excoascus pruni; a. plum attacked; b. asci with ascospores.