RETICULARIA CE.E 235 



the markings on the threads; Massee believed he saw indistinct spiral 

 markings, enough to suit at least the prototrichias. Lister would put it 

 near the tubifers and in this is followed by Jahn. Torrend thinks of the 

 dianemas, margaritas, etc., because of the simple capillitium attached 

 above and below. Spore characters are probably the most reliable 

 index. The partial reticulation suggests association with Tubifera and 

 for the present it may find station there, as in the English monograph. 

 Rare. Known from Ceylon, Malay Peninsula, Sumatra and col- 

 lected once in Jamaica. 



3. Liceopsis Torrend 

 Bull. Soc. Port. Sc. Nat. 2 : 63. 1908. 

 Sporangia sessile or short-stipitate, subglobose or flattened, with 

 fragile membranous walls. Occasionally separated, but usually densely 

 gregarious, approaching a pseudo-aethalium. Capillitium usually 

 scanty, of branching threads arising from membranous expansions; 

 sometimes lacking. 



Liceopsis lobata {Lister) Torrend 



Bull. Soc. Port. Sc. Nat. 2 : 63. 1908. 

 PI. XVI, Figs. 401, 402. 



1894. Reticularia lobata Lister, Mycetozoa 161. 



Sporangia closely clustered, angular by mutual pressure or occa- 

 sionally solitary and subglobose, rarely short-stipitate, 0.4-1.1 mm. 

 in diameter, rusty brown; peridium thin, slightly iridescent with a 

 tendency to dehisce as a lid; sporangia when closely appressed forming 

 a false sethalium; capillitium scanty, rusty brown, of threads arising 

 from brown membranes as in Reticularia; spores globose, 6-10 ix in 

 diameter, coarsely reticulated over two-thirds of the surface, smooth 

 or with fragmentary reticulations on the remainder. Plasmodium 

 hyaline. 



Our material is from Hillsboro, Oregon, collected by Mr. H. C. 

 Gilbert (No. 944). Also reported from Washington. Apparently rare, 

 but widely distributed in Europe; Japan. 



Family RETICULARIACE^ 



Fructification either a true aethalium or a pseudo-asthalium in which 

 the sporangial walls disappear before maturity; pulvinate, flat or 

 somewhat plasmodiocarpous; pseudocapillitium thread-like or of per- 

 forated plates sometimes fraying out into threads; spores rusty, 

 ochraceous or umber. 



