BASIDIOMYCETES 399 



convex on the upper surface, remaining green (so far as 

 observed), 4-12 mm. diam., the convex surface becoming 

 minutely velvety from the hymenium ; basidia cylindrical, 

 30-35 X 5-6 /z, bearing 2 sterigmata ; spores ovate-oblong, 

 continuous, hyaline, glabrous, 5x3 /*; conidia developed 

 before or along with the basidia, fusiform, hyaline, i-septate, 

 slightly constricted, 14-16 X 5-6 /*. 



Exobasidium lauri, Geyl., Bot. Ztg., 1874, p. 322, tab. 

 vii. Effused, yellowish, then brownish, smooth, forming 

 woody club- or horn-shaped excrescences 5-10 cm. long; 

 basidia cylindric-clavate, apex rounded and bearing four 

 sterigmata, mixed with filiform paraphyses ; spores oblong, 

 curved, base somewhat acute, hyaline, 15-16 /x long. 



Exobasidium vitis, Prillieux, Malad. des PI. Agric., i. p. 

 298 Pustules numerous, distinct from each other, small, 

 somewhat golden in colour; fertile branches forming the 

 basidia ; number of spores borne by the basidia variable, 

 often six, cylindrical, slightly curved, 6-25 X 1*5 p>. 



HEMIBASIDIOMYCETES 



Basidia elongated, transversely septate, each cell pro- 

 ducing a spore; basidia densely packed side by side to 

 form the hymenium. 



Hirneola, Fries. Cartilagineo-gelatinous, soft and tre- 

 melloid when moist, rigid when dry ; sporophore cup- 

 shaped or saucer-shaped, thin ; basidia rod-shaped or 

 fusoid, transversely septate, each cell producing a single 

 monosporous sterigma ; spores hyaline, oblong, curved. 



Hirneola auricula-judae, Berk., Outl, p. 289, pi. 18, f. 7. 

 Thin and elastic when moist, becoming dark brown or 



