I020 ASCOMYCETES AND BASIDIOMYCETBS 



form of tinea imbricata, and that from the scales of the eruption, 

 experimentally induced, the same fungus is recoverable. For 

 further details see Chapter XCH. on Tinea Imbricata (p. 2509). 



Endodermophyton indicum Castellani, 1911. 

 This fungus was found by Castellani in some cases of tinea imbri- 

 cata. The microscopical appearance of the fungus in the scales is 

 identical with E. tropicale. The principal cultural characters on 



Fig. 518. — PatchT>^of Experi- Fig. 519. — Endodermophyion 

 MENTAL Tinea Imbricata in a indicum Castellani : Hang- 

 Singhalese Boy, obtained by ing-Drop Culture, 

 inoculating a Culture of En- 

 dodermophyton indicum. 



solid media, when the growth takes place in the dark, about 80° 

 to 85° F., without rubber caps on the tubes, and is between fifteen 

 and twenty-one days old, are as follows: — 



Glucose Agar (4 per cent.). — Growth fairly abundant, with surface some- 

 what convoluted or furrowed. Portions of the growth, often the central, 

 is of a deep orange, or pinkish-orange, or red-orange, occasionally of bright 

 red colour. The surface of the rest of the growth often appears white and 

 powdery, being covered by a very short delicate white duvet. 



Sahouraud Agar. — Slow growth, with powdery surface, either with central 

 knob or convoluted. The growth does not deepen in the medium so much 

 as E. concentricum. 



Glycerine Agar. — Growth abundant, white or amber colour; delicate white 

 short duvet present on some portions of the growth. 



Ordinary Agar. — Growth fairly abundant; knobby surface covered by 

 snow-white very short delicate duvet. 



Mannite Agar. — Growth knobby or convoluted, covered by short white 

 duvet. 



Saccharose Agar. — Cerebriform, covered by white duvet. 



Saccharine.- — Crinkled surface; delicate white duvet present. 



Maltose Agar (Acid). — Somewhat similar to Sabouraud's, but the surface 

 growth is more abundant. 



Maltose Agar (Alkaline). — Similar to acid maltose, but the white duvet is 

 more abundant. 



Lactose Agar. — Knobby surface covered by snow-white duvet. 



Nutrose Agar. — Yellowish crinkled surface; short White duvet present. 



Levulose Agar. — Scanty growth, yellow or orange; scarce; very short white 

 duvet present. 



Galactose Agar. — Fairly abundant; surface convoluted with abundant, 

 short snow-white duvet. 



