tenax. 



GENUS II. BOLETUS. 75 



BOLETUS acanlis fuberofus imbricatus fiavus Icevis, ports LXXXVIIi. 

 minutis teritibus. Lightfoot Scot. P. 103 1. — Boletus 

 acaulis coriaceus convexus lobatus fiavus Icevis, ports tenuif- 

 Jimis. Hudjhn AngL 625. Schoeffer Fung. 131. 



TOUGH BOLETUS. 



TAB. LXXV. 



'"F^HIS grows horizontally, on the fides of trees, moft com- 

 ■*■ monly on living wood, in fome cavity occafioned by the 

 lopping of a branch, or fome other accident ; it firfl appears 

 like a large unequal tumour, of mixed colours ; as it advances 

 in growth, it begins to unfold and difplay a number of thick 

 tough lobes, which are imbricated, or rather folded one within 

 another ; for they are nearly of equal length, and adhere at 

 the bafe, fo as to be united into one fubflance. 



The upper furface is convex, foft and fmooth to the touch, 

 and of a brownifh gold colour; fometimes pale, fometimes of 

 a redder hue : on the underfide the lobes are convex near the 

 bafe, but flat near the extremity. The fubftance is tough and 

 coriaceus, while in a growing Mate 5 left on the tree, it dilfolves 

 in decay ; dried, it becomes light, hard, and brittle. 



The tubes are cylindrical, very numerous, and of a yellow 

 colour. 



It is a rare plant in this neighbourhood ; the fpecimen here 

 figured and defcribed, grew in a little wood at Shibden-Hall, 

 near Halifax, in Auguft, 1786. 



M 2 



