158 CRYPTOGAMIA FUNGI. 



liable, an attention to the specific characters is better than 

 a longer description. 



2. P. squamosus, large ; pileus fleshy, of a somewhat ochraceous 

 colour, more or less scaly ; pores whitish ; stalk sublateral, thick 



and swelling GREV. Fl. Edin. 399. Crypt. Fl. t. 207. Boletus 



squamosus, WITH. iv. 357- Sow. Fung. t. 26'6. HOOK. Scot. ii. 

 27. B. cellulosus, LIGHTF. Scot. 1032. 



Hab. On the stumps of the ash, common. 



Stalk lateral, short, thick, solid, firm. Pileus flattened, fre- 

 quently 9 inches or more across, light brown with darker 

 scales arranged concentrically ; flesh white, tough, juicy, 

 the fluid colourless. Under surface white, uniform, honey- 

 combed with small quadrangular or pentangular cells. 

 Probably unwholesome. It will grow from the same stump 

 for many successive years, one plant occasionally piled above 

 another like the combs in a hive, and is in greatest perfec- 

 tion about midsummer. Mr HOPKIRK mentions a speci- 

 men which, in 1810, attained an extraordinary size, being 

 7 feet 5 inches in circumference, and weighing, after ha- 

 ving been cut four days, 34 lb. avoirdupois. It was only 

 four weeks in attaining the above size, gaining thus an 

 acquisition of weight of above one pound three ounces in 

 the day ! 



3. P. igniarius, tubes green-grey or reddish-brown, pores very 

 fine ; pileus hard, thick, shaped like a horse's hoof, smooth, brown, 

 waved. GREV. Fl Edin. 401. Boletus igniarius, LIGHTF. Scot. 

 1034. WITH. iv. 367. BOLT. Fung. t. 80. Sow. Fung. t. 132. 



Hab. On the trunks of old ash trees, enduring for years ; 

 frequent in Berwickshire. 



This attains a large size, and, when old, resembles a piece of 

 old honeycomb attached to the tree. The pileus is often 

 a shapeless mass, but more commonly it is semicircular or 

 hoof-shaped, 2 or 3 inches thick, and from 6 to J) in itsjtang- 

 est diameter. If aged, the colour is a uniform dark brown, 

 and the texture is firm, dry, and woody, with pores an inch 

 long, and which are separable from one another as well as 

 from the pileus ; but in a young state, the hymenium is 

 yellowish, the tubes are short with pubescent orifices, and 

 the upper surface is covered with a close velvet-like shag. 



