310 A Monograph of the Myxogastres. 



* * * * Spores elliptical. 

 Physarum ellipsosporum, Rost. (fig. 214).V\,\^o tt** 



Plasmodiocarp variable in form, vermiform, sinuous, or reticu- 

 lately combined, depressed, wall firm, charged with particles of 

 lime, whitish or grey ; capillitium well developed, nodes numer- 

 ous, containing colourless granules of lime, internodcs long, 

 slender ; spores dirty lilac, tooadly elliptical, warted, many of the 

 warts becoming elongated and ridge-like, 12 16 -f 9 11 p. 



Physarum ellipsosporum, Rost., Mon. App., p. 10 ; Sacc., Syll., 

 vii., 1, n. 1191. 



Enteridium cinereum, Schweinitz, Amer. Fung., n. 2365. 



(The specimen from Schweinitz in Herb. Berk., Kew, is the 

 one examined by Rostafinski.) 



On decaying herbs. Carolina. 



(Rostafinski's Synonym.) 

 Enteridium cinereum, Schweinitz, Amer. Fung., n. 2365 (1834). 



C. Position uncertain, owing to imperfect description and 

 absence of sjjecimens. 



Physarum flavo-virens, A. and S. 1 . 



Sporangia obovate, greenish-yellow; stem brownish; spores 

 black. 



Physarum flavo-virens, Alb. and Schwz., Nisk., p. 97 ; Fr., 

 Syst. Myc., iii., p. 137; Sacc., Syll., vii., 1, n. 1216. 



Amongst inoss on rotten trunk. 



Stem of medium length ; sporangium piriform, fragile, smooth, 

 not squamulose. (A. and S.) 



Physarum luteo-valve, Sz. ? 



Irregularly lobed, convex, more or less confluent ; sporangia 

 externally shining, gold-colour, more or less compressed like a 

 bivalve shell ; spores deep yellow. 



