Mvxomyceta', Myxoiiiycetaccie, l'hys;iriim. 209 



PHYSARUM Pers. — Syll. VII p. 33G, X p. 84, XI p. 462, XIV 

 p. 831, XVI p. 819. 



1. Physarum ceneum Rob. E. Frics Myxomyceten von Argentinien 3887 

 und Bolivia, in Arkiv. for Botanik, Stochkolm 1903, p. G2. — 

 Peridiis sessilibus, globosis vel elongati.s, fiexiiosis vol intordum 

 reticulatim conjunctis, membrana duplici, exteriori calce incrustata, 

 extus nenea, intus plumbea, interiori tenuissima, metallica, nitida, 

 diutius persistente; capillitio nodulis calcareis numerosis, subro- 

 tundis vel irregularibus, fulvis priedito; sporis fusco-violaceis 7-8 



[j.. diam. levibus. 



Ilah. in truncis, in Bolivia. 



2. Physarum luteo-album A. et G. Lister, Journ. of Bot. 1904, p. 130, 3S88 

 t, 459, f. 2. — Plasmodio?; peridiis subglobosis, late umbilicatis, 



1 mm. lat., 0,7 mm. alt., iiavi.s, albido-tinctis, rugulosis; tuuica 

 densa, granulis calcareis albis v flavis innatis farcta; stipite ob- 

 tuso, glabro, 0,5-1 mm. long , 0,2 mm. cr., Lete flavo v. fulvo, 

 sa^pe deorsum pallidiore, calce onusto, basi hypotliallo calcifero 

 incrassato infixo; columella ampla hemisphserica v. breviter cla- 

 vata, pallide flava; capillitio ex filamentis tenulssimis, liyalinis, 

 tequalibus laxe ramoso-anastomosantibus formato; nodulis calcareis 

 flavis, minutis, fusoideis parce sparsis; sporis atro-purpureo brun- 

 neis, spinulosis, 11 \i. diam. 



Hdb. in acubus pineis in horto T. Hanbury, La Mortola 

 Ital. bor. (Miss Constance Pim.). — Ph. melleo afline, sed omnino 

 distinctum. 



3. Physarum dictyospermum A et G. Lidter, Journ. of Botany 1905, 3889 

 p. 112. — Peridiis subglobosis, stipitatis, erectis, sparsis, 0,5-0,G 

 mm. diam., sordide aurantiis v. atro-olivaceo-brunneis, nitidulis, 

 tunica membranacea, firmula, aurantio-variegata, corpusculis cry- 

 stallino-lenticularibus innatis, IG [x. diam., pr;edita; stipite vulgo 

 tenui, 100-500 [x. alt., in hypothallum parcum basi expanso, sur- 

 sum nigro v. interdum flavido (ob granula calcaria); columella 

 conica v. hemisphierica brevi v. peridii tertiam partem attingente, 

 nigricante; capilhtio e columella radiante, persistente ex filamen- 



tis tenuibus hyahnis v. flavidis reticulatis composito, nodulis fu- 

 soideis aurantiis calcariis interjectis; sporis globosis, 10-11 [x. d., 

 purpureo-griseis, coacervatis brunneo-purpureis, vittis augustis sa- 

 turatioribus crebre reticulatis, areolis hinc quino-senis regularibus, 

 illinc irregularibus et minus distinctis. 



14 



