Boletus POLYPORACE^E 



321 



dark sienna. T. adnate to subdecurrent, yellow to olive-green 

 or whitish-green. Po. large, angular, compound. Flesh 

 unchanging, salmon-white. 



Gregarious, not oespitose. Bogs, amongst Sphagnum. Sept. 4^x5xjin. 

 Resembles a slender 1464, but flesh does not change colour. 



1466. B. rutilus Fr. (from the reddish pileus ; rutilus> golden-red) a. 

 P. pulvinate, glabrous, brownish-red or umber, not dark. 



St. equal, glabrous, sulphur above, pale claret-brown below. 

 T. sinuato-adnate, sulphur. Po. minute. 



Woods, oak. Oct. if x if X in. Must not be confounded with 1472 

 or 1474. 



1467. B. aurantiporus Howse ex Cooke (from the golden-yellow 



pores ; aurantins, orange) a b. 



P. convex, expanded, sometimes umbonate, ferruginous, orange- 

 sienna, claret-brown or buff. St. equal, orange above, with 

 large purple-crimson reticulations, sulphur and pale yellow 

 below. T. deeply decurrent, yellow to bright orange, becoming 

 brownish when bruised. Po. broad angular. Flesh usually 

 pale rose, sometimes pale yellowish, changing to pale orange-red. 



Under or near trees, yews. Aug.-Oct. 3i X 3| X | in. Howse con- 

 sidered this plant to be allied to 1469. 



1468. B. piperatus Bull, (from the peppery taste ; piper ^ pepper) a b c. 

 P. pulvinate to expanded, dull ochreous-orange or yellow-ochre. 



St. equal or attenuate downwards, sienna-orange. T. decurrent, 

 sienna with ochre and vermilion, or rich sienna-scarlet. Flesh 

 deep sulphur, orange in stem. 



Sometimes caespitose. Poisonous. Taste very acrid. Woods, mixed, 

 under limes ; frequent. Aug. -Nov. 2\ x 2 x T 5 ^ in. Often small. 

 Springing from yellow mycelium. 



b. Subtomentosce. 



1469. B. variegatus Swartz (from the different colours of stem, 



pileus and tubes) a b c. 



P. pulvinate, yellowish-sienna or yellowish-brown, clouded sienna 

 or vinous; marg. extended beyond T., inrolled. St. equal, 

 bright yellow to dull ochre, shaded orange, burnt-sienna or 

 vinous. T. yellow, or orange- or olive-brown, not dark. 

 Po. minute. Flesh yellowish, changing sparingly or wholly to 

 blue, sometimes unchanging. 



Tasteless ; odour unpleasant. Woods, chiefly pine, heaths ; frequent. 

 July-Nov. 5 x 2| x ij in. 



1470. B. sulphureus Fr. (from the sulphur-colour) a b c. Wholly 



sulphur-colour. 

 P. hemispherical to expanded-obtuse. St. ventricose, with 



rooting red base. T. adnato-decurrent, at length greenish. 



Po. minute, compound. Flesh becoming blue. 

 Caespitose, sometimes in clusters of fifty or more. Tasteless. Sawdust, 



stumps. Sept.-Nov. 4 x 2j x if in. Sometimes changing to reddish 



