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POPULAR SCIENCE REVIEW. 
unwholesome that when in a time of famine some Norman 
peasants lived upon it, they were attacked with a very horrible 
form of gangrene, and died in great numbers. In the history 
of the faculty this poison is turned to good purposes, a valuable 
and potent medicine being extracted therefrom. It is likely 
that from this plant, or one of its allies, the famous Gipsy 
poison, the drei, is concocted. The Candle-snuff Fungus 
(. Xylaria hypoxilon ) is one of this group ; its burnt-looking 
stems, crowned with white powder in youth, and afterwards 
swollen with the full asci, are familiar to us about tree stumps, 
etc. A few epiphytes, among which are the Hop, Rose, and 
Vine Mildews; a curious genus of minute Fungi infecting 
rotting horse-hoofs and cloth ; and a series of true Moulds, as 
the Bread, Dung, and other Moulds, complete the group called 
Hyphomycetes, and conclude the list of British Fungi. 
a. Agaric ; b. Boletus ; c. Polyporus ; 'd. Merulius ; e. Fistulina (mag- 
nified) ; f. Hydnum (magnified ) ; o. Stereum ; h. Hymenochaete ; i. Tuber ; 
j. Ascus ; k. Jam Mould (magnified). 
