| PLATE VIII. [[PAGE 104.]] | |
| Fungi. | |
| Fig. | |
| 1. | Isaria-form of Tubercularia. |
| 2. | Isaria-form of Tubercularia, filaments. |
| 3. | Aspergillus glaucus. |
| 4. | Aspergillus glaucus, filaments and heads of spores; a, separate spores. |
| 5. | Aspergillus glaucus, head of spores. |
| 6. | Peziza omphalodes. |
| 7. | Peziza stercorea. |
| 8. | Peziza stercorea, cup (receptacle). |
| 9. | Peziza stercorea, asci and paraphyses. |
| 10. | Peziza stercorea, divided receptacle. |
| 11. | Peziza stercorea, bristles. |
| 12. | Dothidea typhina, on leaf-stalk ofgrass. |
| 13. | Dothidea typhina, surface of patch (stroma). |
| 14. | Dothidea typhina, capsules (perithecia). |
| 15. | Dothidea typhina, ascus containing spores. |
| 16. | Sphæria rubella, on nettle-stem. |
| 17. | Sphæria rubella, asci. |
| 18. | Sphæria rubella, capsules (perithecia). |
| 19. | Sphæria rubella, ascus and spores. |
| 20. | Sphæria bullata, on piece of stick; 20 a, section of tubercle (receptacle). |
| 21. | Sphæria bullata, asci and spores. |
| 22. | Sphæria complanata, on piece of stick. |
| 23. | Sphæria complanata, tubercles (receptacles). |
| 24. | Dothidea ulmi, on elm-leaf. |
| 25. | Dothidea ulmi, asci. |
| 26. | Dothidea ulmi, section of receptacle. |
| 27. | Dothidea ulmi, spores. |
| 28. | Chætomium elatum; 28 a, spores; 28 b, filaments. |
| 29. | Chætomium elatum, on piece of stick. |
| 30. | Hysterium fraxini, on piece of stick. |
| 31. | Hysterium fraxini, receptacle. |
| 32. | Hysterium fraxini, ascus with spores. |
| 33. | Erysiphe guttata, on hazel-leaf. |
| 34. | Erysiphe guttata, capsule. |
| 35. | Erysiphe guttata, capsule (conceptacle) with fulcra. |
| 36. | Mucor mucedo: a, columella; s, spores. |
| 37. | Acrostalagmus: a, spores. |
| 38. | Gall on oak-leaf. |
| 39. | Gall on oak-leaf. |
Muced´ines.—Many of the Fungi belonging to this family are extremely common on decaying vegetable substances, and some are found upon living plants, to which they are very injurious. To the naked eye they usually appear as mouldy or cottony masses, either white, black, or coloured blue, yellow, &c. The spores are attached singly or in rows to branchlets arising from the ends of the filaments, so as to form little heads.
Bot´rytis parasit´ica ([Pl. VII.] fig. 19) is common upon the flower-stalks of the Shepherd’s Purse, forming white mealy patches. The fruit-stalks are comparatively large and thin-walled, the branchlets being slender, mostly curved, and terminated each by a large, spherical, smooth, simple, white spore.
Botrytis vulgáris is also common on various decaying plants. Its filaments are grey, and the branchlets lobe-like; the spores being minute, spherical, either white or greenish, and placed simply at the tips.