42 A Monograph of the Myxogastres. 



Eeticularia maxima, Corda, Ic. vi. 35 (1852). 

 Reticularia granulosa, (Erstd. MSS. 



C. Aethalium covered with a common cortex. 

 Tubulina spumarioidea, Cke. and Mass. 



Aethalium large, irregular, cortex membranaceous, blight grey, 

 with anastomosing veins inside ; walls of sporangia almost 

 colourless, veiy thin and soon disappearing; mass of spores 

 orange with a tinge of olive ; spores globose, with rather large, 

 oltuse ivarts, 16 18 p. diameter. 



Licea spumarioidea, Cke. and Mass., Grev., vol. xvi. p. 74 

 (1888). 



Running over twigs and on the ground. Near Melbourne, 

 Australia. 



Aethalia subglobose or irregular, varying from | to 1 inch 

 across, creeping up grass and twigs like Spinnaria alba ; common 

 cortex bright grey, thin, subpersistent, with numerous anasto- 

 mosing vein-like thickenings in the inside of the wall. Spor- 

 angia densely crowded, flexuous, wall thin, at first imperforate, 

 soon disappearing. 



Imperfectly known species. 

 Tubulina brunnea (Preuss.). 



Closely gregarious; sporangia ochraceous-brown, rotuncl, sub- 

 depressed, wall papyraceous, irregularly torn, upper portion 

 disappearing in a subcircumscissile manner; spores globose, 

 minute, ochraceous, threads none. 



Licea Irunnca, Preuss., Hoyersw., n. 275 ; Schroet., p. 102 ; 

 Sacc., Syll., 1387. 



On semi-putrid trunks of pines. Germany ; Silesia. 



Tubulina Lindheimeri, Mass. 



Broadly effused, externally blackish, mass of spores ferru- 

 ginous-orange ; spores globose, smooth, 6 7 p. diameter. 



Licea Lindlicimeri, Berk., Grev. v. 2, p. G5 ; Sacc., Syll., v. 7, 

 n. 1388. 



