XX 
INTRODUCTION. 
Receptacle wholly clathrate 
Receptacle clathrate above 
Receptacle stipitate. 
Apex entire . . . 
Apex lobate . . . 
Apex laciniate . . 
Apex stellate . . . 
4. Clathrus. 
5. Coins. 
3. Mutinus. 
6. Lysurus. 
7. Anthnrus. 
8. Aseroe. 
The next family is the Nidulariacece, in which the spores are 
contained within compact, lenticular sporangia, which are at 
first enclosed in a general globose or cup-shaped receptacle. 
Receptacle cup-shaped. 
Substance stratose " 9. Cyathus. 
Substance not stratose .... 10. Crucibulum. 
Receptacle globose, then stellate. . . 11. Sphrerobolus. 
The third and largest family is the Lycoperdacecc, in which 
the spores are pulverulent when mature, and then dispersed by 
an opening or by fissure of the peridium. In some of these the 
peridium possesses a distinct stem ; in others the stem is sup- 
pressed. In some the peridium is double ; in others it is 
single. And, again, some possess a distinct central columella, 
which in others is absent. All these features are taken into, 
account in arranging the following scheme: — 
Peridium stipitate. 
With a columella. 
Gleba cellular 
12. 
Secotium. 
Gleba floccose 
16. 
Podaxis. 
Without columella. 
Stem fibrous, hollow. 
Peridium spherical . . . 
19. 
Tylostoma. 
Peridium lenticular . . . 
20. 
Battarrea. 
Stem solid, rooting .... 
28. 
Castoreum. 
Stem woody .... 
29. 
Xylopodium. 
Stem cartilaginous . . . 
21. 
Calostoma . 
Peridium sessile, or subsesgile 
With distinct columella. 
Peridium single. 
Splitting lengthwise . . . 
Indehiscent. 
. 13. 
Chainoderma. 
Subglobose 
. 15. 
Mesophellia. 
Cylindrical 
Protoglossum. 
Peridium double 
Cycloderma. 
Peridium absent ... . . 
. 17. 
Gymnoglossum . 
With free central nucleua . . . 
Without distinct columella. 
Peridium double. 
Exoperidium flaky. 
Budoperidium thin , . . 
. 23. 
Diploderma. 
. 24. 
B ovist a. 
Endoperidium thick . . . 
. 27. 
Mycenastrum. 
Exoperidium spiny or warty 
. 25. 
Ly coper don. 
Exoperidium thick, nreolate 
. 26. 
Scleroderma. 
Exoperidium stellate . . . 
Peridium single.. 
22. 
G easier. 
Containing peridiola . . . 
. 31. 
Polysaccum . 
Containing sporangiola . . 
, 32. 
Arachnion. 
