216 RELATIONSHIPS OF THE COCCACE^: 



decolorizes by Gram. Good to abundant, yellow surface 

 growth. Reaction in dextrose broth faintly acid, in lac- 

 tose broth alkalin or faintly acid. Gelatin slowly liquefied. 

 Nitrates not reduced. 



A long series of names may be referred, as synonyms, 

 to this species. The principal of them are as follows: 



M. annulatus, Kern; M. badius, Lehmann and Neu- 

 mann; M. cerinus, Henrici; M. citreus liquefaciens , Unna; 

 M.citrinus, Migula; M. confluens, Kern; M. conjuncti- 

 vitidis (Gombert), Migula; M. conglomerate, Fltigge; M. 

 coronatus, Migula; M. corrugatus (Dyar), Migula; M. ere- 

 moides, Zimmermann; M. cupularis, Migula; M. desidens 

 (Fliigge), Migula; M. expositions, Chester; M. flavens, 

 Henrici; M.fiavescens t Henrici; M.flavidus, Henrici; M. 

 flavus liquefaciens, Unna; M. galbanatus, Zimmermann; 

 M. gigas, Frankland; M. luteolus, Henrici; M. lutosus, 

 Kern; M. olens, Henrici; M. orbicularis, Ravenel; Staph. 

 pyo genes citreus, Passet; M. rugosus, Chester; M. sub- 

 citreus, Migula; M. sufiflavus (Bumm), Migula; M. sub- 

 granulatus (Freund), Migula; M. subochraceus , Migula; 

 M. tardus (Unna, Tommasoli), Migula; M. Urugua, 

 Chester; M. versatilis, Sternberg. 



This list includes certain forms, like M. coronatus and 

 M. rugosus, characterized by differences in the appearance 

 of their colonies which appear to us too slight to warrant 

 specific rank. It includes also the semi-parasitic form, 

 called Staphylococcus pyogenes citreus by Passet, and 

 commonly considered a variety of Aur. aureus. In our 



