296 A Monograph of the Myxogastres. 



(Type in Herb. Berk.) 



Physarum galbcum, Wingate, in E. and E., N. Amer. Fung., 

 2491. 



On moss, wood, &c. U. States. 



Resembling in the long, slender stem, and small, elliptical 

 lumps of lime, some species of Tilmadoche from which genus 

 it differs in the presence of a columella. About 2 mm. high. 



Physarum hians, 



Sporangia stipitate, yellowish-red, then blackish, globose or 

 slightly elongated; stem reddish-brown, silicate, expanding at 

 the base into a small, circular hypothallus, penetrating the 

 sporangium as a columella which reaches nearly to the apex ; 

 threads of capillitium yellowish, with violet tinge, forming a 

 somewhat dense network, nodes irregularly oblong, reddish- 

 yellow, spores violet, smooth, 8 10 n diameter. 



Ttynadoche hians, Host., Mon. App., p. 14. 



Tilmadoche minuta, Berl., Sacc., Syll., vii., 1, n. 1251. 



On dead leaves. Belgium. 



The present species is removed from Tilmadoche on account 

 of the columella. 



Physai'um rufibasis, B. and Br M quoted by Rostafinski as a 

 synonym under the present species is quite distinct, hence the 

 Ceylon habitat of the latter is incorrect. 



(Rostafinski's Synonyms.) . 



Cralenum minutum, Kickx, non Fr. 



Physarum rujibasis, B. and Br., Fung. Ceylon, n. 762 (1873). 

 CJwndrioderma inflatum, Rost., Mon., p. 425, n. 177 (1874). 

 See Kickx's description of Craterium minutum under Cra- 

 terium. 



Physarum Leveillei, Rost.^ -^^^ 



Sporangia lenticular, furfuraceous, golden, as is also the 

 upwards attenuated stem, threads of capillitium vanishing; 

 spores globose, smooth, 10 11 jx diameter. 



