256 A Monograph of the Myxogastres. 



green with siolphnr-coloured ixUchcs of lime ; stem slender, attenu- 

 ated upioards and curved, sulphur-coloured, or whitish, becoming 

 brownish towards the base ; hypothallus spreading ; spores 

 blackish-brown, globose. 



Berk., in Herb., n. 10,785. 



On palm. Java. 



The above description, accompanied by sketches, is in Berke- 

 ley's Herbarium, but the specimen has disappeared, hence I am 

 unable to supplement the diagnosis. 



Spumaria, Pers. 



Aethalium consisting of numerous crowded, irregularly 

 branched sporangia, the whole at first surrounded by a common 

 friable cortex containing granules of lime ; sporangia dendritic, 

 the thin walls containing granules of lime; columella central, 

 not containing lime, sending off branches into the lobes of 

 the sporangium; threads of the capillitiuin forming a dense 

 network, extending from the columella to the walls of the 

 sporangium. 



Sjmmaria, Pers., Disp., t. 1, figs, a, h, c; Rost., Mon., p. 191 ; 

 Cooke, Myx. Brit., p. 45 ; Sacc, SylL, p. 838; Zopf, 153. 



The present genus, along with Diaehaca, form a transition from 

 the Lithodermcae to the Gohimelliferae ; showing affinity with 

 the former in the presence of granules of lime in the sporangial 

 walls, and with the latter in the central, elongated columena. 



Distrih. Europe ; United States ; Canada ; Australia ; S. 

 Africa; Ceylon. Species 1. 



Spumaria alba, D. C. 



Common cortex whitish, deciduous; sjwrangia ninnerous, 

 dendritic ; columella empty, hranchcd, shorter than the branches 

 of the sporangium, capillitium springing from the columella and 

 passing to the wall of the sporangium, branches 2 — 4 ju thick, 

 foi^ming a dense irregidar net, widened at the angles, obscure 

 violet or brownish ; sjDorcs globose, mrructdose, obscure purple, 

 10 — 13 IX diameter. 



Spumaria alba, D. C, Flor. Fr., ii., 2G1 ; Rost., Mon., p. 191, 



