

192 THE JOURNAL OF BOTANY 



Spores warted, usually clustered . . . E. olivaceum Elirenb. 

 Spores reticulated, free E. Rozeanum Wing. 



34. Reticularia Bulliard, iEthalia composed of interwoven spor- 



angia; the persistent portions of their walls rusty brown, 

 forming broad membranous folds and strands, dividing above 

 . into narrow threads. 



iEthalia large, at first enclosed by a silvery cortex ; spores faintly 

 reticulated ........ R. Lycoperdon Bull. 



iEthalia small, shining iridescent; spores sharply reticulated ^ 



R. lobata List. 



(This species is closely allied to Enteridium Rozeanum.) 



Order V. — Lycogalaceze. 



35. Lycogala Micheli. iEthalia subglobose, with a cortex con- 



sisting of two more or less closely combined layers, and pro- 

 vided with cell-like vesicles ; pseudo-capillitium tubes thick- 

 walled where they traverse the cortex, thin-walled amongst 

 the spores ; spores in mass pale pinkish grey. 



A. Cortex of sethalium smooth or areolated 



B. Cortex of sethalium warted : 



L. flavo-fuscum Rost. 



iEthalia globose L. miniatum Pers. 



jiEthalia conical ........ L. conicum Pers. 





Subcohort II. — Calonemine-e. 



Order I. — Tkichiace^e. 



36. Trichia Haller. Sporangia stalked or sessile; elaters free, 



pointed at each end, thickened with two to five spiral bands ; 

 spores reticulated or warted, in the former case the reticula- 

 tion continuous or broken and forming when seen in profile 

 a " border " to the spore. 



A. Spores reticulated or marked with broken bands : 



Elaters 7-8 /x wide ; spores reticulated ; border 2 /x wide 



T. favoginea Pers. 

 Elaters 4-5 /x wide ; spores reticulated with narrow bands ; 

 border 1 /x wide ; sporangia stalked, clustered 



T. verrucosa Berk. 

 Elaters 4-6 /x wide ; spores reticulated with broad pitted bands ; 



border 0*5-1 /x wide; sporangia sessile 



affinis 



Elaters 4-6 /x wide; spores with the reticulation broken into 

 irregular shallow pitted warts ; border interrupted, 0-5 /x 

 wide ; sporangia sessile . . .' . T. persimilis Karst. 



Elaters 4-6 /x wide ; spores very closely reticulated ; border 

 none; sporangia sessile T. scabra Rost. 



