li(«lliaiiiin. 317 



the riiysarac 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 Physarwrn. Very closely allied to Cratcrium. 

 For distinguishing features see note following last-named genus. 

 Distrih. 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, lase dirty 

 hroivnish-ycllmv, tJds colour usually eontinuing upwaoxis in a vein- 

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

 of white lime. Avail thin, stem when present variable in length, 

 rather stout, h^ownish-yellow, or pale, rugulose ; capillitium 

 dense, knots numerous with scattered granules of lime ; spores 

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

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

 diameter. 



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

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



Physarum maerocarpon, Ces., in Rab. Fung. Eur., n. 19G8 ; 

 Flora, 1855, p. 271. 



^,mcc.— Rab. Fung. Eur., n. 1968; Syd. Myc. March., n. IGOO 

 (stipitate form as Physcirum le^icophaeum). 



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 sj^orangium. The yellowish colour at 



