MICROCOCCUS

(Lat.), n. m. Mik(mek)-ro(ros)-ko2k'ku3s(ku4s). From Mixpds. small, and KOKKOC, a kernel. Fr., m., microcoque. Ger., M., Mikrokokke, Mikrokokkus. A minute coccus; a genus of the Schizomycetes in which the cocci are globose or ovoid, and either undivided, single, or congregated into groups or into irregular zoogloea ma es. Saccardo places it with Nei era and Staphylococcus in the Micrococcece (a tribe of the Coccogence). [B, 121, 291, 316 (a, 35).] See Plate III, and cf. NEISSERIA and'STREPTococcus and their subheadings. Chromogenlcm., Chromogenousm. Lat.. m. chromogen us. Fr., m. (ou microcoque chromo gene). A m. producing a pigment. [B, 246 (a, 35).] Fermentative m. See Zymogenic m. M. aero genes. A species found in the alimentary canal, producing gaseous decomposition of carbohydrates. Its cultivation forms resemble somewhat those of Bacterium aero genes I. [Miller, "Dtsch. med. Wochnschr.," Feb. 25, 1886, p. 117 (B); B. 316 (a, 35).] M. albicans ampins. See NEISSERIA albicans. M. albicans tardi imus. The Nei eria tardi ima. [B, 316 (a, 35).] M. alb us uriiiae. See M. urinal bus.'M.. amylovorus. A microbe said to induce fermentation in saccharine liquids and to be the cause of apple and pear blight. It consists of cocci from \ to } ft broad, 1 to 1J ft long, usually solitary, sometimes in pairs or aggregated, but never in chains. [" Bull. 3 of the Experiment Station of the Iowa Agricul. Col.," Nov., 1888, p. 64; B, 316 (a, 35).] Cf. BACTERIUM of pear-blight and BACILLUS amylobacter.'M.. aquatilis. A saprophytic species common in drinking-water, consisting of very minute cocci, irregularly aggregated. On gelatin plates it forms whitish discs denticulated deeply at their margins. [B, 316 (a, 35).] M. ascoformans. See M. botryogenes.f/l. aurantiacus. A non-pathogenetic m. giving an orange-color to bread and eggs. Saccardo refers it to Pediococcus aurantiacus. [B, 246, 316 (a, 35).] M. blennorrhffius. See NEISSERIA gonorrhoeas. M. bombycis. Of Cohn, see STREPTOCOCCUS bombycis. M. botryogenes. Of Rabe, a species consisting of cocci from 1 to 1 '5 /it in diameter, occurring in pairs or botryoid clusters, and observed in the lungs of horses in a ociation with very large tumors. On gelatin plates, which it scarcely liquefies, it forms sharply defined spherical colonies of metallic lustre. Of Saccardo, the Bolling era eqni. [B. 316 (a, 35).] M. candicans. A saprophytic innocuous species found in the secretions of the respiratory pa ages, forming irregular groups of large, uniformly spherical cocci. ["Ctrlbl. f. Bakteriol. u. Parasitenk.," 1890, 5, p. 152 (a. 35): B. 238. 316 (a, 35).] M. can did us. Of Cohn, a species occurring on boiled potatoes, gelatin, cheese, etc., when exposed to the air. The globose and very minute cocci form hemispherical, glistening-white, slimy droplets which afterward dry up into chalky-white crusts. [B, 246, 316 (a, 35).] M. capillorum. A species found in the scalp, and said to change the color of the hair. It consists of very minute reddish yellow cocci, usually united into zoogloea-ma es. [B, 316 (a, 35). | M, cereus alb us. See STAPHYLOCOCCUS cereus alb us. VI. cereus flavus. See STAPHYLOCOCCUS Pa etii. M. chlorin us. A micO, no; O", not; O3, whole; Th, thin; Tli, the; U, like oo in [s. 777]