848 MEDICAL MYCOLOGY 



cells which are easily dissociated. The apical cell of the conidiophore, 7-12 

 X 3-4/A, bears a number of excrescences formed by a localized thickening of 

 the wall. These excrescences bear cells in fascicles or whorls, which are 

 clavate to more or less cylindric and produce chains of cells. The terminal 

 cells of the chains, by repeated cell division, increase the length of the chains, 

 the youngest spores at the ends. The typical spores are ovoid, 7-8 x 4-5/^ 

 (2.5-14 X 2.5-6/a), or navicular, both poles being provided with disjunctors, or 

 one may be rounded. 



Young colonies greenish, becoming dark green to black on most media. 

 Growth smooth and moist, becoming cracked on drying out, sometimes covered 

 with a thin layer of aerial hyphae. Colony form varies on different media, 

 being subconic or crateriform on potato, smooth and confluent on carrot, often 

 with radial furrows on agar. For further details, the original paper should 

 be consulted. 



Hormodendron leproides (Leger & Nogue) Dodge, n. comb. 



Scopulariopsis leproides Leger & Nogue, Bull. Soc. Path. Exot. 15: 654- 

 661, 1922. 



Isolated from tAvo patients with mild lesions resembling leprosy, but with- 

 out anesthesia. 



Mycelium never a coremium. Hyphae 2.5-4/x in diameter, regularly cylin- 

 dric, old branches tangled. Septa prominent, 10-15/* apart, branching without 

 regular alternation, often at a 25° angle. Conidia easily scattered on simple 

 or divided sporophores, 20-60/a long. Basal conidium ovoid, retained for a 

 rather long time by a very loose pedicel. These conidial mother cells give 

 rise to basipetal chains of varying lengths. False branchings may be alter- 

 nate or verticillate but never as large as the aspergillar head. Phialides not 

 seen. Conidia rounded or citriform, each carrying as ornamentations two 

 slight elevations on the longest axis where chains break apart, 4-6/a in di- 

 ameter. Membrane thick, nucleus easily stained. 



Hormodendron rossicum Meriin, Arch. Derm. Syphilis 162: 300-310, 5 

 figs., 1930. 



Case by I. I. Chemiavski [Tschernjawski], Arch. Derm. Syphilis 157: 

 196-206, 1929. 



Found in dermatitis verrucosa, therapeusis effected by excision and medi- 

 cation with KI. Antigens not specific. Pathogenic to rats, injections causing 

 ulcers which show an infiltration of diffuse mononucleate cells and newly 

 formed vessels. In the center, there is an increase of giant cells and poly- 

 morphonuclears, with masses of spherical brown cells of the fungus which 

 was reisolated from the experimental lesions. 



Mycelium 2.6yu in diameter, terminal cells (conidiophores) 2.6-3.4 x 2.6/1, 

 spherical or ovoid. Conidia ovoid, outer conidia smaller. Conidia in rosette 

 of 3 or 4 short chains of 2-6 members on ends of conidiophores which are 

 only the free ends of hyphal branches ; pseudosclerotia formed. Original pus 

 showed brown spherical cells ; does not reproduce by budding. 



