Fig. 155.—Effuse slope culture. × ½.
Fig. 156.—Rhizoid slope culture. × ½.
Fig. 157.—Rugose slope culture. × ½.
Fig. 158.—Verrucose slope culture. × ½.
On agar, potato and blood serum slope tubes the amount of growth, its form and elevation, the character of the surface, and the consistency should be carefully noted, and in some few cases the character of the edge. Figures 152 to 158 show some of the commoner types.
Fig. 159.—Punctiform colonies on a plate. × ½.
Fig. 160.—A rhizoid colony on a plate. Natural size.
Fig. 161.—Ameboid colonies on a plate. × ½.
Fig. 162.—Large effuse colony on a plate. The edge is lacerated. Incidentally the colony shows the rate of growth for six successive days. × ⅔.