ACTINOMYCETEAE 739 



Actinomyces Sommeri Greco, Origine des Tumeurs . . . 726-758, 1916. 



Streptothrix Madurae Greco, Primer Caso de Pie de Madura o Micetoma en 

 la Republica Argentina, Tesis, Buenos Aires, 1904. 



Streptothrix micetomae Argentiiiae oc Greco Apud Durante, Segunda Ob- 

 servacion de Pie de Madura o Micetoma en la Republica Argentina, Tesis, 

 Buenos Aires, 1911. 



Oospora Sommeri Sartory, Champ. Paras. Homme Anim. 783, 784, 1923. 



Isolated from a case of mycetoma pedis in Argentina. Pathogenic to 

 guinea pigs and rabbits. 



Hyphae about 1/^ in diameter, occasionally up to 1.2/x; spores 2-3/a long; 

 branching, dichotomous; spore chains helical. Gram-positive, acid-fast, aerobic. 



On simple agar, colonies pale rose, hard; dry, finally light grayish rose, 

 colonies rugose or craterif orm ; medium mahogany or port wine in color. On 

 glycerol agar, colonies elevated 1-2 mm., umbilicate, rose, yellow, or orange, 

 rose efflorescence, 3-4 times as large as on simple agar. On potato, colonies 

 small, brick red, dry, medium not colored ; on carrot, colony similar but better 

 growth, more rose color. On serum, colonies small, grayish white, few; on 

 gelatin, colonies small, white, poor, no growth in stab. On coagulated egg 

 white, colonies grayish rose with white margin ; on e^^ yolk, similar but more 

 rose color, with a light gray granular efflorescence. In broth with peptone, 

 pellicle light yellowish rose or gray, smooth ; colonies from the lower side set- 

 tling, no cloudiness, becoming mahogany colored. In lactose broth, similar, 

 pellicle yellowish straw color. In glycerol broth, pellicle folded and granular 

 rose color, little or no sediment. Growth in milk good, pellicle orange, milk 

 not coagidated but slowly digested. In liver infusion, pellicle dry, more or 

 less thick, light yellowish rose, then brick red, sediment grayish white, granu- 

 lar, medium not changed in color. In potato decoction, pellicle thin, fragile, 

 white, sediment as above. In yeast infusion, no pellicle; medium remains clear 

 but darkens. 



It is possible that the following unnamed organism belongs to this species. 



Streptothrix sp. Bloch, Cor. Bl. Schweiz. Aerzte 46: 270, 271, 1916. 



Isolated from a white grain mycetoma pedis. Pathogenic to rabbits, pro- 

 ducing lesions similar to those on man. 



Growth aerobic, abundant, brick red color. 



Actinomyces Madurae (Vincent) Lachner-Sandoval, tJber Strahlenpilze 

 64, 1898. 



fOospora indica Kanthack, Jour. Path. Bact. 1: 140-162, Pis. 10-12, 1892 

 [organism seen in tissues but not cultivated]. 



Streptothrix Madurae Vincent, Ann. Inst. Pasteur 8: 129-151, 1894. 



Nocardia Madurae Blanchard in Bouchard, Traite Path. Gen. 2: 868, 1896. 



Discomyces Madurae Gedoelst, Champ. Paras. Homme Anim. 169-173, 1902. 



Nocardia indica Chalmers & Christopherson, Ann. Trop. Med. Parasitol. 10 : 

 255, 1916. 



Discomyces indicus Neveu-Lemaire, Precis Parasitol. Hum. 42, 1921. 



