An American text-book of genito-urinary diseases, syphilis and diseases of the skin . arge cells, 5 to 7 micro-millimeters, thesecond of small cells, 2 to 3 micro-millimeters, which is not a true tri-chophyton, but the microsporon Audouini of Gruby. The large-celled tri-chophytons are further divided into—first, trichophyton megalosporonendothrix, which is the ordinary mild form of ringwoim met with in allages and on various parts of the body; second, trichophyton megalo-sporon ectothrix, which is always of animal origin. Two clinical forms ofthis latter variety are recognized : first, that co
An American text-book of genito-urinary diseases, syphilis and diseases of the skin . arge cells, 5 to 7 micro-millimeters, thesecond of small cells, 2 to 3 micro-millimeters, which is not a true tri-chophyton, but the microsporon Audouini of Gruby. The large-celled tri-chophytons are further divided into—first, trichophyton megalosporonendothrix, which is the ordinary mild form of ringwoim met with in allages and on various parts of the body; second, trichophyton megalo-sporon ectothrix, which is always of animal origin. Two clinical forms ofthis latter variety are recognized : first, that contracted from the horse, whichis highly pyogenic, giving rise to perifollicular purulent dermatitis, and the 1 Loc. cit. 2 Gruby : Comptes rendus des Seances ds IAcad, Royal des Sciences de Paris, t. 17, p. 301,1843. 3 Bazin : Loc. cit. 4 Furthmann and Neebe : prak. Derm., vol. iii., Nov., 1891. 5 Sabouraud : Annal. de Derm, el de Syph., 1892, t. iii. p. 1061; also Les Trichophyties hu-maines, Paris, 1895. Plate 25. Wfc *r. ; +*-&? Oi-^, /. ,.- - *®,<YZ 1 J. m FlG !._Tiuea bavbse, showingFlG o.—Tinea tonsurans. 1I0aule witli broken hair <«)• TINEA TONSURANS. 1165 cause of tinea barbae and kerion; the second is taken from the cat, dog, etc.,and recognized by its more superficial position and its vesicular lesions. The microsporon Audouini, or small-celled variety, is the cause of themost common form of ringworm in children, and is highly contagious andrebellious to treatment. It attacks only the superficial parts of the epidermisand hair, and does not produce permanent baldness. I. II. Trichophyton. Microsporon. <0plf, hair, and *vrd^, a plant.) (F«p6!, small, and <r™poi, seed.) Spores large, size of red blood-cell ; mycelium abundant, oftenin chains. Spores small, half size of redblood-cell; little or no mycelium;fungus outside the hair; hair fine,broken off long; very contagious: Megalosporon Endothrix. Megalosporon Eetothrix. rebellious to t
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