PHY S A RUM 85 



Wendish region on the south borders of Brandenburg. Reported 

 also from Sweden. 



The description and figure given by Schvveinitz, 1805, /. c, 

 leave no doubt as to what he had in hand. Twenty or thirty years 

 later, having spent the interval in this country, — bishop, indeed, of 

 the Moravian churches, but a student of fungi all the while, — he 

 reports the same thing from this country; Proc. Phil. Acad. Scu, 

 1834. Cooke also lists it in Myxomycetes of the U. S. It surely 

 will be found again. Mr. Lister thinks P. variable Rex may be the 

 same thing. 



43. Physarum carneum G. Lister and Sturgis. 



1910. Physarum carneum G. Lister and Sturgis, Jour. Bot., Vol. XLVIII, 

 p. 63. 



Sporangia gregarious, stipitate, subglobose, .5 mm. in diameter, 

 ochraceous-yellow above, flesh-colored below; peridium membranous, 

 pale yellow, lime-granules evenly distributed ; stipe short, translucent, 

 pinkish flesh-colored; capillitium dense, nodules white; spores pur- 

 plish-brown, spinulose, 8 /x. 



Differs from P. citrinellum in the membranous peridium, flesh- 

 colored stalks and smaller spores. 



Colorado; Dr. W. C. Sturgis. 



44. Physarum citrinellum Peck. 



1831. Physarum caespitosum Schw., Syn. N. A. P., No. 2301 (?). 



1869. Diderma citrinum Peck, Rep. N. Y. Mus., XXII., p. 89. 



1870. Physarum citrinellum Peck, Rep. N. Y. Mus., XXXI., p. 55. 

 1894. Craterium citrinellum List, Mycetozoa, p. 74. 



1899. Physarum caespitosum Schw., Macbr., N. A. S., p. 37. 



1911. Physarum citrinellum Peck, List, Mycetozoa, 2nd ed., p. 62. 



Sporangia gregarious, or scattered globose, short-stipitate, pale 

 yellow or ochraceous, smooth or slightly roughened by the presence 

 of minute lime-particles; peridium more or less distinctly double, the 

 outer calcareous, fragile, the inner very delicate, with here and there 

 a calcareous thickening, ruptured irregularly; stipe very short, half 

 the sporangium, fuliginous, furrowed, expanded below into an im- 



