45 
the genus Calostoma, Desv. 
Fig. ii. C. cinnabarinum, section through exoperidium, a ; endoperidium, b ; 
and spore-sac, c ; d, mucilaginous matrix towards outside of exoperidium ; e, a few 
spores that have become mixed with the hypha forming the spore-sac. x 400 
diam. 
Fig. 12. Portion of a thread from the red zone between exoperidium and endo- 
peridium during the first stage of disintegration, indicated by the appearance of 
numerous minute red granules in the substance of the wall, x 700 diam. 
Fig. 13. Hypha showing clamp-connections from exoperidium of C. cinna- 
barinum. x 400 diam. 
Fig. 14. Basidia with spores of C. cinnabarinum , a, rudimentary wart-like 
sterigmata. x 400 diam. 
Fig. 15. Free spores of C. cinnabarinum , showing the various forms, x 400 
diam. 
Fig. 16. Portion of one of the coiled hypha that cause the contraction of the 
inner peridium in C. cinnabarinum. x 400 diam. 
Fig. 17. Same as Fig. 16, after being treated with dilute potassic hydrate, 
x 400 diam. 
Fig. 18. Portion of mouth and upper portion of spore-sac of C. cinnabarinum , 
showing teeth, a ; and depressed circumscribing zone, b. x about 4 times. 
Fig. 19. C. lurida. Nat. size (after being moistened). 
Fig. 20. Spores of Fig. 19. x 400 diam. 
Fig. 21. C. Junghuhni. Nat. size (after soaking). 
Fig. 22. Vertical section of C. Junghuhni ; a , endoperidium ; b, spore-sac con- 
tracted. Slightly enlarged. 
Fig. 23. Spores of C . Junghuhni. x 400 diam. 
Fig. 24. C.fusca; at a, the exoperidium shows the circumscissile mode of rup- 
ture. Nat. size (after soaking). 
Fig. 25. Spores of C.fusca. x 400 diam. 
Figs. 26, 27. C. Ravenelii in different stages of development. Nat. size 
(moistened). 
Fig. 28. Spores of C. Ravenelii. x 400 diam. 
Fig. 29. C. viridis. Nat. size (after being moistened). 
Fig. 30. Spores of C. viridis. x 400 diam. 
Fig. 31. C. rir bra. Nat. size (moistened). 
Fig. 32. Spores of C. orirubra. x 400 diam. 
Fig. 33. C. Berkeleyi. Nat. size (moistened). 
Fig. 34. Spores of C. Berkeleyi. x 400 diam. 
Figs. 35, 36. C. insignis ; a, ruptured exoperidium. Nat. size (moistened). 
Fig. 37. Vertical section of C. insignis ; a , endoperidium ; b, spore-sac in con- 
tracted state. Slightly enlarged. 
Fig. 38. C. insignis ; endoperidium with spore-sac, a, extruded. Nat. size. 
Fig. 39. Spore of C. insignis. x 400 diam. 
Fig. 40. Cluster of acicular crystals of oxalate of lime from gleba of C. insignis. 
x 700 diam. 
