EXAMINATION OF CULTURES 



111 



Clouded: having a pale ground, with ill-defined patches of a 



deeper tint. 

 4. Colony marking or striping (surface). 



Reticulate: in the form of a network like the veins of a leaf. 

 Areolate: divided into rather irregular or angular spaces by 



more or less definite boundaries. 

 Gyrose: marked by wavy lines indefinitely placed. 

 Marmorated: showing faint, irregular stripes, or traversed by 



veinlike markings as in marble. 



Rivulose: marked by lines, like the rivers of a map. 

 Rimose: showing chinks, cracks, or clefts. 

 Filamentous: as already defined. 

 Floccose: composed of filaments densely placed. 

 Curled: filaments in parallel strands, like locks or ringlets, as in 



agar colonies of Bact. anthracis. 



Fig. 36. Structure of colonies: 1, conglomerate colony; 2, toruloid 

 colony; 3, alveolate structure; 4, grumose in center; 5, moru- 

 loid; 6, clouded; 7, reticulate; 8, marmorated; 9, gyrose. 



5. Edges of colonies. 



Entire: without toothing or division. 



Undulate: wavy. 



Repand: like the border of an open umbrella. 



Erose: as if gnawed, irregularly toothed. 



Locate. 



Lobulate: minutely lobate. 



Auriculate: with earlike lobes. 



Lacerate: irregularly cleft, as if torn. 



Fimbriate: fringed. 



Ciliate: hairlike extensions, radiately placed. 



Tufted. 



Filamentous: as already defined. 



Curled: as already defined. 



