288 
CRYPTOGAMIA. FUNGI. Boletus, 
Pileus rich dark red brown,, often whitish at the edge, strongly marked and 
made very uneven by concentric ridges ; sometimes one stratum of the 
plant laid on another; three to five inches wide, one and a half to three 
inches broad. Flesh thin, brown. 
(Cuticular Boletus. Bol. cuticularis. Purt. Bol. alneus and triqueter. 
Pers. fid. Purt. E.) On a dead alder stump below the cascade by the side 
of the brook, Edgbaston park. Dec. 
Bol. crypta'rum. (Bull.) Tubes rust-coloured, very long: pileus 
rust-coloured, thin, supine. 
Bull. 478— Bolt. 165—( Grev. Scot. Crypt. 155. E.) 
Tubes half an inch or more in length, constituting almost the whole sub¬ 
stance of the plant. Pores rusty brown, very minute. Pileus thin, lea¬ 
thery, or spongy, soft, adapting itself to the wood on which it grows, and 
serving as a base on which the tubes are erected. Bolton. Bulliard. In 
Bulliard’s plate the plants are represented as growing in great masses, 
and cupping up. These grew in vaults upon hewn timber. Bolton 
found his on dry decayed boughs of hazle. In the course of time the 
whole plant assumes a woody texture, harder than cork, as is the case 
with a specimen sent me by Mr. Gough of Kendal, which grew upon the 
decayed branch of a plum tree. The pores in this specimen form eleven 
concentric circles, one laid against the other; and it is probable that each 
circle is the growth of a year. The pileus, or the part by which it was 
attached, does not show any marks of a regular increase. 
(Vault Boletus. Polyporiisferruginosus. Hook. FI. Lond. 163. E.) 
Bol. labyrinthifor'mis. (Bull.) Tubes red brown, long: pores 
sinuous: pileus rugged, zoned, brick red. 
Bolt. 160— Bull. 491. 1. 
Tubes quarter to half an inch long, reddish brown. Pores sinuous or labyrinth- 
formed, greyish or reddish brown. Pileus rough, wrinkled, marked with 
distant concentric circles of a lighter or darker brown colour, semi-cir¬ 
cular, one and a half to two inches radius. Flesh woody, pale brown, 
veined, smooth. Bolton. Bulliard. Lobes many from one root, waved at 
the edge, pustulated on the upper surface; reddish brown. Pores oblong, 
angular and sinuous. Mr. Stackhouse; to whose attentions I am indebted 
for a specimen. (This species has been confounded with Bol. igniarius, 
than which it is more porous, and not so hard and durable. The pores 
also have the true doedalous (labyrinth) form. Purt. E.) 
(Labyrinth Boletus. Bol. confragosus. Bolt. Dcedalea confragosa. Pers. 
Purt. E.) On old trees and roots. Trunks of trees cut off*, or on the 
adjoining ground. Mr. Stackhouse. Sept. 
Bol. unPcolor. (Bull.) Tubes grey brown : pores labyrinth-formed: 
pileus woolly, with zones of different shades of the same colour. 
Bull. 408 and 501. f. 3— (Sowerby 325. E.)— Bolt. 163, young plants. 
Tubes quarter of an inch or more in length. Pileus thin, semi-circular, 
leathery, mostly brown or red "brown. Bulliard. In habit much resem¬ 
bling Bol. versicolor, but differs in the colour and length of the tubes. 
Pileus sometimes green. 
(Self-coloured Boletus. Bol. unicolor. Sowerby. Bolt. Purt. Sistotrema 
cinereum. Pers. E.) On trees, stumps, and rails, not uncommon. P. 
