SPOROTRKIIEAE 793 



In tissues, cells l()-20fi in diameter, 1 hick-walled. On PoUacci agar, hyphae 

 hyaline, sinii)le, septate, variously granular, 2-7/a in diameter, forming some 

 racquet mycelium in old cultures. Aleurospores terminal or unbranelied, hyphae 

 oblong or rounded, 7-11 x 3-6/x, apiculate with thick membrane, usually single, 

 rarely in chains of two or three. On Sabouraud's and Raulin's media, arthro- 

 spores up to IS^u, in length are formed. Colonies develop 24-30 hours after inocu- 

 lation. Optimum temperature for growth 25° -30° C. 



Colonies on Pollacci agar spreading, languinous. rising above the surface 

 2-3 mm., white, then yellowish or brownisli. No pigment in mannitol agar. 

 In blood agar, colonies punctiform, confluent, slightly lanuginous, light yel- 

 low. No fermentation or acid production in carbohydrates. Gelatin and 

 coagulated serum rapidly liquefied. 



Ota & Kawatsure (1933) reduce Glenuspum Gainmeli to synonymy with 

 their Aleuiisma tulanense (see p. 841, Monospormm iulanense), but their de- 

 scription of cultures fits Castellani's description of Blastomycoides lamiginofsvs 

 better than that of his Blastomycoides tidanensis, so that one wonders if there 

 has not been a confusion of culture labels. 



Trichosporium graphii (Harz & Bezold) Dodge, n. comb. 



AspergilUis glaucus Ilassenstein, Zeitschr. Parasitenk. 1: 111-113, 1869, non 

 aliorum. 



VeriicilUnm graphii Harz & Bezold apud KSiebenmann, Die Schimmelmy- 

 kosen des Menschlichen Ohres, 95, 1889. 



Glenospora graphii Vuillemin, C. R. Acad. Sci. 154: 141-143, 1912. 



Description of Vuillemin was based on a corneal organism isolated by 

 Morax. 



Conidiophores verticillate, branched or solitary, ending in a single conid- 

 ium ; at 18°-20° C, conidium ovoid, grayish or yellowish, 7.5 x 5.7/x, or sub- 

 pyriform and only 1.4/x in diameter at the disjunctor. Coremia present on 

 poor media, not on rich. On coremia, successive conidial production takes 

 place, but conidia never appear in chains. Conidia may be cylindric, 6.5 x S/jl, 

 spherical, o/j. in diameter, or ovoid, 5 x 3/a. At the optimum temperature, 37° 

 C, spores are slightly smaller. 



On most media, colonies begin as small grayish tufts, then blacken, with 

 brown mycelium penetrating the medium. No action on milk or gelatin. 



Trichosporium khartoumensis (Chalmers & Archibald) Dodge, n. comb. 



Glenospora khartoumensis Chalmers & Archibald, Ann. Trop. Med. Para- 

 sitol. 10: 169-222, Pis. 4-7, 1916. 



Isolated from a black grained maduromycosis in the Soudan. 



On microscopic examination, the grains show a light-colored interior with 

 branched, septate hyphae and chlamydospores. Hyphal cells 2.1-2.3 x 5.6-8/i,; 

 chlamj^dospores 7 x 15.3 x 14/*. In cultures, aleurospores appear on branched 

 hyphae. No sexual reproduction observed. Optimum temperature 30° C. 



On maltose agar, colony shows a central elevation surrounded by a groove 

 separating it from a plateau which is grayish at first becoming darker (dusky 



