38 ENDOSPOREAE [BADHAMIA 



deposits of lime-granules in dense clusters forming raised warts 

 or veins. Capillitium white, a profuse network of broad or 

 narrow bands, charged with granules of lime, often densely 

 conrluent at the base and forming an ivory-white columella, 

 sometimes with a few hyaline connecting threads. Spores 

 violet-brown, very minutely warted, not clustered, 11 /a diam. — 

 — Rost. Mon., p/l44, figs. 114, 116; Mass. Mon., 318 ; Macbr. 

 N. Am. Slime-Moulds, 64. Physarum paniceum Fr. Syst. Myc, 

 hi. 141 (1829). Badhamia verna, Rost. I.e. p. 145, in part. 



PI. 10.— a. sporangia ; b. capillitium and spores ; c. spore ; (England). 



When, as occasionally happens, the sporangia are shortly stalked, this 

 species shows a marked affinity to Physarum pusillum (q.v. 64). The 

 specimen from Freiburg named by Rostafinski B. verna (B.M. 1189) is 

 a form of B. panicea with scanty lime. 



Hab. On bark and wood ; frequent in Britain. — Batheaston, 

 Somerset (B.M. 77); Lyme Regis, Dorset (B.M. 1186); Cambridge 

 (B.M. 1187); France (B.M. 425); Germany (B.M. 424); Switzerland 

 (Zurich Herb.) ; Sweden (B.M. 2080) ; Portugal (B.M. 2081) ; Colorado 

 (B.M. 2082). 



14. B. ovispora Racib. in Rozpr. Mat.-Przyr. Akad. 

 Krak., xii. 72, tab. 4, fig. 2 (1884). Plasmodium ? Sporangia 

 sessile, white or ochraceous, smooth or rugose, hemispherical, 

 0-5 mm. diam., or forming irregular and often branching 

 plasmodiocarps, crowded or scattered ; sporangium-wall thick 

 but friable from the dense deposits of lime granules. Capilli- 

 tium white, fragile, consisting of an irregular network of 

 tubes filled with loosely adhering lime-granules, often uniting 

 to form a columella at the base of the sporangium. Spores 

 free, purple-brown, ellipsoid, 10x8 to 16x10 /a, smooth, 

 traversed lengthwise by a low ridge or fold marking the fine 

 of dehiscence. 



PI. 12.— a. sporangia ; b. capillitium and spores ; c. spore ; (Bedfordshire). 



This minute species has been found repeatedly, and in some years 

 very abundantly, on heaps of old straw during the months of August 

 and September in the counties of Bedfordshire and Hertfordshire since 

 1897 when the first British gathering was made by Mr. James Saunders. 



Hab. On branches of Popidus canescens DO, and on old straw. — 

 Stopseley, Beds (B.M. 1694); Bushey, Herts (B.M. 2083); Bohemia, 

 <B.M. slide). 



15. B. lilacina Rost. Versuch, 10 (1873). Plasmodium 

 bright yellow. Sporangia subglobose, about 0*5 mm. diam., 

 isessile, rarely shortly stalked, gregarious, or crowded and angled 

 by mutual pressure, smooth, flesh-colour or whitish ; sporan- 

 gium-wall opaque from included deposits of lime. Capilhtium 

 flesh-coloured or nearly white, — a rugged network with large 

 knots of irregular shape densely charged with lime-granules, 

 often confluent in the centre and forming a pseudo-columella. 

 Spores dark purple-brown, rough or reticulated with prominent 



