EN DOM YCETA CEM 



983 



Genus Willia Hansen, 1904. 



Definition. — •Saccharomycetacese with ascospores lemon-shaped 

 or hat-shaped (see Fig. 492). As a rule do not produce alcoholic 

 fermentation, but produce various ethers. Cultures present a 

 pleasant fruity odour. 



Species in Man. — Willia anomala Hansen, 1904. 



Fig. 492. — -Ascospores of Willia anomala Hansen. 

 (After Guilliermond.) 



Willia anomala Hansen, 1904. 



Rather small oval cells. In sugar liquid media it forms a well- 

 marked membrane, containing air-bubbles. Asci with 2-4 spores 

 of the so-called hat-like type. Glucose fermented, but not saccha- 

 rose or maltose. Ferments beer-wort, with production of ethers. 

 Found by Beauverie and Lesieur in the sputum of a tubercular 

 patient. 



FAMILY ENDOMYCETACE^. 



Definition. — Mycelium usually well developed, multiseptate; 

 asci 4-8 spored; spores one-celled. 



A. Mycelium poorly developed — Podocapsa. 



B. Mycelium well developed: — 



I. Asci formed after zygosis— Eremascus. 

 II. Asci formed asexually: — 



{a) Asci 4-spored — Endomyce^. 

 (6) Asci 8-spored— 



(c) Asci with a large number of spores — Coccidioides. 

 Only Endomyces and Coccidioides concern us. 



Genus Endomyces Rees, 1870. 



Definition, — Endomycetaceae with mycelium abundant, ramified 

 or not, simple or septate. Presence of budding and asci with four 

 spores. Reproduction by external spores, ascospores, and spores 

 situated inside the mycelial tubes. 



Remarks. — Vuillemin believed at one time that the thrush fungus 

 belonged to this genus. Researches carried out by Castellani 

 have demonstrated that the condition known as thrush may be 

 caused by various fungi. These fungi, as a rule, do not reproduce 

 by ascospores, and, as justly remarked by Pinoy and Vuillemin 

 himself, belong to the genus Monilia (see p. 1079). For the fungus 



