Slide Contributed by David Geiser
(Electronic Images Only)
I. Ascomycetes
1. Aspergillus nidulans biseriate conidiophore head.

2. Hulle cells, characteristic of the genus Emericella and relatives.

3. Immature asci of Ascobolus, with paraphyses visible.

4. Aspergillus (Eurotium), typical uniseriate conidiophore.

5. Aspergillus sydowii colony -- the cause of sea fan aspergillosis.

6. Plectomycete-like asci of Chaetomium.

7. Cordyceps militaris fertile portion of stroma. Note orange perithecia.

8. Emericella nidulans culture. Cleistothecia are surrounded by a stroma of hülle cells.

9. Eremascus albus hyphae and asci.

10. Cleistothecia of Eupenicillium javanicum.

11. Cleistothecia of Eurotium.

12. Unordered, evanescent asci of Eurotium.

13. Side view of Eurotium ascospore showing two equatorial rings.

14. Eight-spored asci from Gelasinospora.

15. Perithecia of Gelasinospora on agar surface.

16. Perithecia of Gibberella zeae on carnation leaf -- cirrhi are visible.

17. Hypocrea gelatinosa produces eight two-celled ascospores that fragment into
      16 part-ascospores.

18. Hypomyces lactifluorum on Russulaceae.

19. Nectria haematococca asci with two-celled ascospores.

20. Nectria haematococca with ruptured perithecium with fascicles of young asci.

21. Nectria tetrasperma: four-spored asci from this pseudohomothallic species.

22. Nectria haematococca perithecia, some producing cirrhi.
        (N. haematococca [a.k.a. Haematonectria haematococca];
        Teleomorph of F. solani)

23. Asci from Petriella (Microascaceae). Note the Plectomycete-like, evanescent asci
      containing eight unordered ascospores. Mature ascospores are brick red to brown.

24. Polysporous asci from Podospora on dung.

25. Ascospores of Podospora sp.,  with appendages.

26. Perithecium of Podospora on surface of deer dung.

27. Asci of Sordaria fimicola. Note that each ascus has a refractive apical ring.

28. Stromatic ascoma of Trichocoma paradoxa,  type genus of the Trichocomaceae (Eurotiales).

29. Warcupiella sp.: Note the typical unordered, evanescent asci and ascospores of a
      eurotialean fungus.

30. Asci of a member of the Xylariales, stained with Melzer’s reagent. Note amyloid ring
      on ascus apex.

II. Basidiomycetes
31. Calostoma cinnabarina a common stalked puffball in the eastern US.

32. Cantharellus sp.: Note the gill-like folds characteristic of this genus.

33. Tuning fork basidium typical of Dacrymycetales.

34. Gymnosporangium clavipes spermogonial and aecial stages Rosaceae.
        (Photo by Gary Moorman)

35. Inonotus dryaedus fruiting body enveloping leaves of English ivy.

36. Mutinus caninus mature fruiting bodies and eggs, with fly on spore mucilage.

37. Omphalotus illudens: a large fruiting.

38. Russula spp. basidiocarps.

39. Russuloid spores. Note the amyloid ornamentation of the spores typical of Russulaceae.

III. Slime Molds
40. Arcyria denudata mature sporangia.

41. Arcyria capillitium capillitial threads and spores.

42. Empty calyculi from Hemitrichia (?).

43. Ceratiomyxa sp.: reticulate sporophore form.

44. Dichlaena sp.: irridescent, columellate sporangia (1).

45. Dichlaena sp.: irridescent,  columellate sporangia (2).

46. Dictydiaethalium sp. pseudoaethalium - tightly packed sporangia.

47. Dictydium sp. showing cage-like sporangium.

48. Dictydium sp. showing cage-like sporangium containing spores.

49. Dictyostelium sp. migrating slug stage (1).

50. Dictyostelium sp. migrating slug stage (2)

51. Dictyostelium sp. developing sorocarp.

52. Dictyostelium sp. sorocarp head and spores.

53. Dictyostelium discoideum: top and bottom focus of developing sorocarp.

54. Diderma testaceum sporangia with double peridium (1).

55. Diderma testaceum sporangia with double peridium (2).

56. Hemitrichia sp. sporangia with calyculus.

57. Lycogala sp. aethalium.

58. Physarum cinereum subplasmodiocarpous fruiting on blade of grass.

59. Physarum polycephalum plasmodium on agar.

60. Physarum polycephalum sporangia.

61. Physarum polycephalum gellified and fluid portions of plasmodium.

62. Physarum polycephalum plasmodium overrunning a colony of Penicillium.

63. Stemonitis sp. sporangia.

64. Stemonitis sp. showing columella and capillitium.

65. Trichia sp. sporangia.

66. Trichia flavogenia sporangia.

67. Trichia flavogenia capillitium and spores (1).

68. Trichia flavogenia capillitium and spores (2).

Return to Top of Page

Return to Index of Contributors