OPTICAL CHARACTERS 267 



Curled: Filaments in parallel strands, like locks or 

 ringlets (Fig. 147). 



(E) Edges of Colonies. 



Entire: Without toothing or division (Fig. 148, a). 



Undulate: Wavy (Fig. 148, b). 



Repand: Like the border of an open umbrella (Fig. 

 148, c). 



Erose: As if gnawed, irregularly toothed (Fig. 148, d). 



FIG. 148. Edges of colonies: a, Entire; &, undulate; c, repand; d, erose. 



Lobate. 



Lobulate: Minutely lobate (Fig. 149, e). 



Auriculate: With ear-like lobes (Fig. i49,/). 



Lacerate: Irregularly cleft, as if torn (Fig. 149, g) 



Fimbriate: Fringed (Fig. 149, h). 



Ciliate: Hair-like extensions, radiately placed (Fig. 



FlG. 149. Edges of colonies: e, Lobar-lobulate; /, auriculate; g, lacerate; 

 h, fimbriate; i, ciliate. 



Tufted. 



Filamentous : As already defined. 



Curled: As already defined. 



(F) Optical Characters (after Shuttleworth) . 



i. General Characters: 



Transparent : Transmitting light. 



