badhamia] physakaceae 37 



11. B. affinis Rost. Mon., p. 143 (1873). Plasmodium ? 

 Sporangia hemispherical, somewhat depressed, flattened 

 or umbilicate beneath, about 0-5 mm. diam., greyish- 

 white, rugulose, gregarious, stalked or sessile. Stalk varying 

 from Ol to 0-7 mm. in length, black, or black below and white 

 above, furrowed. Capilhtium as in B. macrocarpa. Spores 

 violet-brown, minutely spinulose, 12 to 15 fx diam. — Macbr. 

 N. Am. Slime-Moulds, 66. 



The type specimen from Chili appears to be lost ; Prof. Macbride , 

 however, finds North American gatherings agreeing so perfectly with 

 Rostafinski's description, that he has felt justified in naming them 

 B. affinis. This species appears to hold an intermediate position 

 between B. macrocarpa and B. orbiculata, differing from the former 

 in the more depressed sporangia and paler spores, and from the latter 

 in the sporangia being smaller and less discoid in shape. Specimens 

 corresponding closely with one named B. affinis by Prof. Macbride 

 have been obtained several times in Japan by Mr. Kumagusu Minakata, 

 whose investigations have added so much to our knowledge of the 

 Mycetozoa of that country. Sporangia similar to those from Japan 

 have recently been found by the Rev. W. Cran on moss growing on 

 wood in Aberdeenshire. 



Hab. On bark and moss. — Pennsylvania (B.M. 2077) ; Kii, Japan 

 (B.M. 2078) ; Aberdeenshire (B.M. slide). 



12. B. orbiculata Rex in Proc. Acad. Xat. Sci. Phil. 

 1893, 372. Plasmodium cream-coloured. Sporangia scat- 

 tered, orbicular, discoidal, or irregularly elongated, flattened 

 or concave above, about 0-7 mm. diam., greyish-white, 

 shortly stalked or sessile, sometimes forming extended 

 plasmodiocarps ; sporangium-wall membranous, with scanty 

 deposits of lime granules. Stalk black, furrowed, 0-1 to 0*3 

 mm. high. Capilhtium a network of branched strands, charged 

 with lime-granules, sometimes uniting to form a central 

 calcareous plate, or of almost simple rod-like tubes attached 

 above and below to the sporangium-wall. Spores violet-brown,, 

 minutely warted, 12 to 15 /a diam. — Macbr. N. Am. Slinie- 

 Moulds, 66. B. macrocarpa Lister Mycetozoa, 34, in part. 



PI. S.—d. sporangia ; e. /. spores ; (Philadelphia). 



This species, though closely allied to B. macrocarpa, appears to- 

 maintain its characters well. It has now been found repeatedly in 

 many of the States of Xorth America, in the West Indies, and in Japan. 



Hab. On dead wood.— Colorado (B.M. 2057) ; Dominica (B.M. 

 1642) ; Japan (B.M. 2079). 



13. B. panicea Rost. in Fuckel Symb. Myc, Nachtr. 2 ? 

 p. 71 (1873). Plasmodium white. Sporangia subglobose, 

 0-4 to 1-2 mm. diam., scattered, or closely aggregated and 

 angled by mutual pressure, white or cinereous, sessile, often 

 seated on a dark red hypothallus, rarely with short dark 

 red stalks; sporangium-wall membranous, with included 



c 



