180 IMl'OBTANT VARIETIES OF FISSION-FUNGI. 



Macroscopically they appear as if sprinkled with grayish- 

 yellow pollen, with a fruit-like odor. ^ Magnified sixty 

 times : Round, sharply outlined colonies without special 

 characteristics. In the gelatin stab culture liquefaction 

 takes place slowly, with a cup-shaped depression. The 

 growth along tlie stab is white and thread-like. Upon 

 potato a hoarfrost-Hke yellowish deposit with a fruit-like 

 odor. Upon agar the growth is scarcely perceptible. 

 Kitt has expressed the belief that the organism is only a 

 special form of the Micr. jjyogenes — which requires further 

 investigation. 



It is pathogenic fgr guinea-pigs, sheep, goats, cows, 

 swine, and especially for horses. It is found in thick, 

 cord-like or nodular connective-tissue growth, usually soft- 

 ened in the center, in the perimysium, subcutis, spermatic 

 cord (after castration) and the retroperitoneal connective 

 tissue of horses. Besides, it is found in the lungs, udder, 

 lymph-glands, ear muscles, nasal mucous membrane and 

 bones. Recently cases have been described also where 

 botryomycosis occurred in man (compare Schneidemiihl, 

 I. c). 



Micrococcus pyogenes (Rosenbach)(Lehm.and Neum.)- 



(Plates 8 and 9, i-iii.) 



a Aureus (Rosenbach) Lehm and Neum. 

 /3 Citreus (Passet) " " " 



r Albus (Rosenbach) " " " 



Synonyms. — Staphylococcus pyogenes aureus Rosen- 

 bach, Staph, pyogenes albus Ros. , Staph, pyogenes citreus 

 Passet. ^ 



Ordinary Names. — Grape coccus, pus coccus, simply 

 ' ' staphylococcus. ' ' 



Principal Literature. — Eosenljach, " Mikroorgamsmen bei den 

 Wundinfektionskrankheiten de.<3 Menschen," 1884; Passet, "Aetio- 

 logie der eitrigen Phlegmone, " 1885 ; Garr4, "Fortsoh. d. Medio.," 



^ ^ Our Micr. luteus also possesses a sometimes agreeable sometimes 

 disagreeable sweetish odor. 



2 Compare also p. 187, regarding the Staphylococcus citreus Passet. 



