[Vor. 1 
110 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
the stipe, the mouths white to brownish in color, circular to 
angular, very minute, invisible to the unaided eye, averaging 
5-7 to а mm.; stipe central to lateral, dark brown or black on 
the lower half, glabrous, 1-6 em. long, 0.4-1.5 em. thick. 
On stumps and logs late in autumn. Common. 
The combination of black stipe base and minute pores char- 
acterizes this and the next species. The two are separated 
mainly on point of size. Murrill describes this plant under the 
name of P. fissus Berk., which was originally described from 
specimens collected in Ohio. Patouillard (Tab. Fung. No. 
136) says the spores are ovoid. Lloyd now considers this plant 
to be a form of P. varius Fries, of Europe. A good illustration 
of our plant will be found in Hard, Mushrooms f. 319. 
35. P. elegans Bull. ex Fries, Epicr. Syst. Myc. 440. 1838. 
Boletus elegans Bull. Herb. Fr. pl. 26. 1780. 
Pileus stipitate, circular to reniform in outline, convexo- 
plane or depressed, 1,5-7 cm. in diameter, 0.2-1 em. thick, 
leathery when fresh, rigid and firm when dry, pale ochraceous 
to dull orange-color, pruinose to glabrous, azonate, the margin 
rather thin, often radiate-striate, even or undulate; context white 
to light ochraceous, tough when fresh, soft corky when dry, 1-6 
mm. thiek; tubes 1-3 mm. long, decurrent on the stipe, the 
mouth whitish to pallid, circular to angular, averaging 4-5 to a 
mm.; stipe central, excentrie or lateral, slender, black at the 
base, light colored above, pruinose or glabrous, 1-8 ст. long, 
0.2-0.6 em. thick. 
On dead wood late in autumn. Not common. 
Spores were not obtained from the writer's specimens. Mur- 
rill gives them as “oblong, smooth, hyaline, 7-8 x 3-3.5y.” 
The species is closely related to P. picipes Fries but is separated 
from it by the smaller size and the uniform ochraceous color 
of the pileus that never takes on the darker chestnut shades 
assumed by P. picipes. Bulliard (Herb. Fr. pl. 124) gives an 
excellent illustration of the plant under the name of Boletus 
nummularius Bull. 
36. P. radicatus Schw. Trans. Am. Phil. Soc. П. 4: 155. 
1832. 
P. Morgani Peck, Ann. Rept. N. Y. State Mus. 32:34. 1879. 
Pileus stipitate, circular in outline, 3.5-20 em. broad, 0.3-0.8 
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