Myxomycetoae, Fhysaracoie, Physarum. 351 



Myc. lll, |). 137. — Feridio obovato, Havo-virente; ^^tipite fusce- 

 scente ; spori.s compactis, nigris. 



llab. inter muscos ad truncum putridum, Augusto iii Lusatia. 

 — Species duhie proposita, sed cliaracteres offert eximios; stipes 

 mediocris; peridium piriforme, fragile, leve, nec squamulosum. 



51. Physarum hypnophilum Fr. Stirpes Femsj p. 83. — Subsessile, pe- ^-i^ 

 ridio rotundato levi, badio; floccis tenerrimis sporidiisque atris. 



Hah. ad rupes madentes supra H y p n u m c u p r e s s i f o r m e ia 

 Suecia. — Sparsum aut gregarium, hypothallo nullo persistente ; sti- 

 pes aut nullus aut brevissimus, crassiusculus, subdecumbens, concolor; 

 peridium admodum tenue, subglobosum aut basi productum, magni- 

 tudine seminis Sinapis, badium, subnitens, apice irregulariter dehi- 

 scens, laceratura; exoletum rugosum tit, at noii hyalinum ; flocci te- 

 nelli iiigri, lateribus peridii adnati. 



52. Physarum luteo-valve Schw. Am. n. 2298. — Lobato-difforme, ums 

 convoxum subcontluens ; peridiis extus aui'antio-s[)lendentibus, quasi 

 compressis bivalvibus; sporis flavissimis. 



llab, in stipitibus dejectis rarius, Carolina. 



53. Physarum muscicolum Hers. Obs. Myc. 1, p. 0, Syn. p. 170, A. et 1-1'' 

 S. p. 93. — Feridio turbinato cinereo; stipite brevi levi lutescen- 



te; floccis albis; sporis atris. 



llab. ad muscos majores in pinetis sphagnosis etc. rarissime, 

 in Suecia et Gerniania. — Situs sparsus aut gregarius, absque evi- 

 denti hypothalio; stipes longitudine variat, peridio duplo circiter 

 longior, sjcpe rutilans; peridium leve, demum squamulosum, inter 

 rorinam obovatam et cylindric;am varium; flocci adnati, albi, spo- 



I ris compactis. 



5-1. Physarum ornatum Peck 31 Rep. Bof. p. 10. — Poridiis depres- y>2*^ 

 sis vel iieiiiisphiericis , planis vel lovittir coiicavis, griseo-cine- 

 rescentibus, granulis luteis minutis praiditis, evacuatis albidis; sti- 

 pite brevi, nigro vel brunneo-nigricante, siccitate longitudinaliter 

 striato; columella nulla; capillitio nodis numerosis i^rajdito; sporis 

 globosis, levibus, brunneo-violaceis, 10-12 y.. diam. 

 llab. in ligno putri, Albany Amer. bor, 



55. Physarum atrum (Pers.) Fr, Syst, Myc. 111, p, 147, non Schw,, \->i\ 

 Lijaogala alra Pers. ined, — ^ Stipato-aggregatum , confluens , 

 atrum; peridiis tenerrimis rotundatis; floccis nullis; sporis atris. 

 Hab. ad truncos vetustos in Vogesis, in Gerraauia et Hritaiujia 



, (Mougeot), — Peridia basi plana adnata, rotundata, ad mediuin con- 



I nata, sa^pe adeo stipata, ut crustam contiguam sistant, 2 mm. lata, 



