Badhamia. '317 



the Physarae are very closely allied, in fact so much so, that 

 only the most typical species can be recognized from the features 

 usually considered characteristic of each, numerous transitional 

 species connecting the genera at various points. The most 

 pronounced character of Badhamia, as defined above, is the 

 thick capillitium threads which contain lime in the form of 

 small granules throughout their entire length, and not con- 

 centrated in large nodes separated by thinner portions without 

 lime, as in the genus Physarum. Very closely allied to Craterium. 

 For distinguishing features see note following last-named genus. 

 Distrib. Europe ; N. America. Species, 18. 



Spores equally warted all over. 

 Badhamia macrocarpa, Rost. (figs. 79 81 and 294 297). 



Sporangia gregarious or scattered, stipitate or sessile, spring- 

 ing from a slender hypothallus, subglobose, grey, base dirty 

 brownish-yellow, this colour usually continuing upwards in a vein- 

 like manner, upper part of sporangium with vein-like patches 

 of white lime, wall thin, stem when present variable in length, 

 rather stout, brownish-yellow, or pale, rugulose ; capillitium 

 dense, knots numerous with scattered granules of lime ; spores 

 free, globose, eqvially warted all over, the warts sometimes show 

 a tendency to become elongated, brownish-purple, 10 15 /A 

 diameter. 



Badhamia macrocarpa, Rost., Mon., p. 143, figs. 118, 120, 121 ; 

 Cooke, Brit. Myx., figs. 118, 120, 121 ; Sacc., Syll., n. 1144. 



Physarum macrocarpon, Ces., in Rab. Fung. Eur., n. 1968; 

 Flora, 1855, p. 271. 



Exsicc. Rab. Fung. Eur., n. 1968; Syd. Myc. March., n. 1600 

 (stipitate form as Physarum leucophaeum}. 



On decaying fungi, bark, &c. Britain (Lyndhurst, East 

 Bergholt, Glamis, Aboyne, N. B., Kensington Gardens) ; France ; 

 Germany; Italy; Poland. 



Plasmodium yellow. Sporangia up to 1'5 mm. diameter, 

 either crowded and sessile on a broad base, or with a stem equal 

 to or longer than the sporangium. The yellowish colour at 



