162 IMPORTANT VARIETIES OF FISSION-FUNGI. 



were cultivated in our institute could be easily designa,ted 

 as Sarc. aurantiaca ; moreover, we can not differentiate 

 Sarc. aurea Mace, Sarc. aurescens fusca and fusces- 

 cens Gruber from Gruber's description. 



Sarcina cervina (Stubenrath). 



(Plate 5, I.) 



Gelatin plate colonies, macrosoopically, at first are whitish, after 

 four to five days pale brown, somewhat moist, slowly becoming sur- 

 rounded by a zone of liquefaction. Magnified sixty times : with 

 coarsely granular projections, gradually breaking up at the edge into 

 coarsely granular, cloudy masses. Gelatin stab— superficial growth 

 small, pale brown, very slowly sinking in. Stab — faint, thread-like, 

 finely granular. Agar plate— similar to that on gelatin. Agar 

 streak — broad, moist, elevated, yellowish-brown (5, l). Potato cul- 

 ture— brownish- white. Magnified one thousand times, it is seen to 

 consist of mostly irregular bales of packets, which appear a light 

 brownish color. This variety was once isolated from the gastric con- 

 tents in a case of carcinoma. 



Sarcina erythromyxa (Krai). 

 (Plate 5, m.) 



Literature. — Kr41 (list of the bacteria handed over); Micr. eryth- 

 romyxa Overbeck (Nov. Act. der Leop.-Carol, Bd. 55, No. 7, 1891). 

 Good description by Zimmermann (ii, 70). 



Magnified one thousand times, usually only cocci, diplococci, and 

 tetrads ; only once did we obtain upon hay decoction a beautiful for- 

 mation of regular bales of packets. 



Upon gelatin plates (natural size ) the colonies are at first a lively 

 greenish color, then beautiful carmine- to vermilion-red, and moist. 

 Magnified sixty times, almost without granulation ; at the edge the 

 red colonies are usually transparent and finely notched. There is no 

 liquefaction. Gelatin stab, agar stab and streak, and potato cultures 

 gradually develop as an intensely red, shining, rather spare growth. 

 Upon milk a red growth forms on the surface, and the milk slowly be- 

 comes clear without preceding coagiilation. Bouillon becomes cloudy 

 with a coarse, crumbly sediment and at times a pellicle. Moderate 

 production of acid on grape-sugar bouillon. 



Sarcina rosea. J. Schroter emend. Menge (B. vi, 596) 

 and Zimmermann (ii, 58). 



The description of this organism (5, vi) coincides absolutely as re- 

 gards its growth upon all nutrient media with that given for the 3Iicr, 

 roseus (p. 190); the illustrations in Plate 11 also are as good for the 



