1G3 MICROSCOPIC FUNGI. 



floccose (fig. 217), and coloured. Tlie sporangia are 

 found singly in eacli conceptacle, and eacli sporan- 

 gium contains eiglit spores. 



An autumnal stroll amongst liaz el -bushes,, wlien 

 tlie nuts are ripe, mil lead, if tlie nuts are not a 

 greater attraction, to tlie discoveiy of wliitisli 

 patclies on tlie under surface of tlie leaves, caused 

 by tlie mycelium of tlie liazel mildew {Phyllactinia 

 guttata J Lev.). Tliese patches are less distinct and 

 conspicuous tlian in many other species, but the 

 little blackish dots of the conceptacles may be dis- 

 tinguished by sharp eyes without the use of the 

 lens. Though possessing a decided preference for 

 the hazel, this species is also found on the green 

 leaves of the hawthorn, ash, elm, birch, sallow, 

 beech, oak, and hornbeam. The conceptacles are 

 larger than in the two preceding species, and some- 

 what depressed above. The appendages are few 

 (fig. 219), radiating, rigid, and acicular, or like 

 needles. Each conceptacle contains eight or more 

 sporangia, and each sporangium has from two to 

 four spores (fig. 220). This species being very 

 common, its conceptacles large, and produced 

 copiously, and its appendages distinct, it mil 

 prove a good type with which the student of these 

 fungi may commence his examinations. This is 

 the only representative which we possess of the 

 genus established by M. Leveille for such of 

 the Eri/sijjhei as have the conceptacle depressed, 

 and the appendages rigid and simple ; bv which 



