MYXOMYCETE8. 



11. Deposits of lime only on the surface of the 



Sporangium. Capillitium without litne, 

 its tubes filled with air . 

 Deposits of lime also contained within the 

 sporangium, tubes of capillitium filled 

 wholly or partly by lime 



12. Tubes of capillitium wide, rarely combined 



by transverse branches into a network, 

 both ends attached, and generally of equal 

 thickness throughout their length . 



13. Whole network of tubes of the capillitium 



filled up by lime ..... 



Network ol capillitium only in a few places 



filled by lime ...... 



14. Sporangium irregularly split 

 Sporangium opening with a lid, which after- 

 wards falls away ..... 



15. Network of capillitiuui irregular 



Tubes of capillitiani broad at the base, 

 thinner and thinner higher up, forked nu- 

 merously at a sharp angle, the branches 

 combined into a regular network, the lime 

 granules not very apparent 



16. Only a few knots of the capillitium charged 



with granules of lime .... 



17. Majority of the knots undeveloped, granules 



of lime consequently very scarce ; sporan- 

 gium with a single delicate side wall; 

 columella central and cylindrical 

 One half of the knots empty, the other half 

 charged with granules of lime ; walls of 

 sporangium double .... 



18. Sporangium irregularly split ; walls of spor- 



angium single or double .... 



Sporangium splitting regularly with a lid, 



its margin, after opening, usually cut off . 



19. Wall of sporangium single or double, the 



outer one always covered on the outside 



with crystals of lime .... 

 Wall of sporangium single or double, the 



outer one encrusted with granules of lime, 



sometimes quite shell like 

 Surface of sporangium covered with lime 



scales, covered by a thin membrane, or 



lenticular granules of lime placed in 



fissures of the side wall 



20. Sporangium single, columella central, filled 



with lime 



12 



13 



Trichamphura. 

 14 



15 



I>adh<imia. 



Scyphium. 



16 



Tilmadoche. 

 17 



Crateriachea. 



Leocarpns. 

 Phijsarum. 

 Craterium. 



Didymiwn. 

 Chondriodertna. 



Lepidoderma. 

 Diaclicea. 



