256 A Monograph of the Myxogaslres. 



green with sulphur-coloured patches of lime ; stem slender, attenu- 

 ated upwards 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; coluraella central, 

 not containing lime, sending off branches into the lobes of 

 the sporangium; threads of the capillitium forming a dense 

 network, extending from the columella to the walls of the 

 sporangium. 



Spumaria, Pers., Disp., t. 1, figs, a, b,c; Host., Mon., p. 191 ; 

 Cooke, Myx. Brit., p. 45 ; Sacc., Syll., p. 338; Zopf, 153. 



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

 the Lithodermeae to the Columelliferae-; showing affinity with 

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

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



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

 Africa; Ceylon. Species 1. 



Spumaria alba, D. C. 



Common cortex whitish, ileciduous ; sporangia numerous, 

 dendritic ; columella empty, branched, shorter than the branches 

 of the sporangium, capillitium springing from the columella and 

 passing to the wall of the sporangium, branches 2 4 /A thick, 

 forming a dense irregular net, widened at the angles, obscure 

 violet or brownish ; spores globose, verruculose, obscure purple, 

 10 13 n diameter. 



Spumaria alba, D. C., Flor. Fr., ii., 261 ; Host., Mon., p. 191, 



