293 



54. MELANOGASTEB, Cd. 

 Peridiura adhering to creeping branched fibres which tra- 

 verse its surface, without any proper or distinct base. Cells 

 at first filled with pulp. Spores smooth, mostly dark. 



1 . M. variegatus, Tul. ; at first ochraceous, then reddish- 

 ferruginous, minutely downy ; walls of the cells dirty-white, 

 yellowish, or orange ; pulp black ; spores minute. — Sow. t. 42G. 



Under beech-trees, Lombardy poplars, etc. South-west of 

 England. Not common. Sold in the market at Bath under 

 the name of the Red Truffle. British specimens never have 

 the walls of the cells decidedly yellow or orange. M. 

 Broomeianus, B., seems, however, to be a mere variety of 

 M. variegatus. 



2. M. ambiguus, Tul. ; very fetid, globose, dirty-olive 

 nearly even ; walls of cells white, reddish when exposed to the 

 air; pulp black; spores large, obovate. — Tul. t. 2. /. 5, and 

 /. 12./. 5. 



Under fir-trees, etc. West of England, C. E. B. Ape- 

 thorpe, Northamptonshire. Smell like that of asafoetida. 

 Spores slightly acute, or more commonly with a terminal 

 papilla. A variety or distinct species, as large as the last, and 

 having its bright rust-colour, occurred at Spye Park, in which 

 the spores have very rarely any papillary apex. This is M. 

 ambiguus, /3 intermedius, B. 



55. HYDNANGIUM, Wallr. 



Peridium fleshy or membranaceous. Sterile base none. 

 Trama vesicular. Cells at first empty, then filled with spores. 

 Spores echinate. 



1, H. c2LVot2dcolov, Berk. ; oblong, rootless ; peridium thin, 

 rugulose, brick-red, orange within ; spores subelliptic, pale, 

 cchinulate. (Plate 20, fig. 1 .)—Ann. of Nat. Hist. xiii. j^. 351. 



