1920] 



BURT THELEPHORACEAE OF NORTH AMERICA. XII 233 



Stereum cuneatum Lloyd, Myc. Writ. 4. Letter 54: 7. 1916. 



"Pileus cuneate, tapering to the base (2 cm. high), cut into 

 a few fimbriate segments. Surface pale, smooth. Hymenium 

 unilateral, pale yellow (honey yellow of Ridgway), smooth. 

 Cystidia none. Spores globose, 3f-4 mic, hyaline, smooth. 

 The plant grows densely caespitose in the earth, from a common 

 mycelial base. It belongs in Section 7 of my recent pamphlet 

 on Stipitate Stereums." Florida. 



Perhaps the above is S. Burtianum or S. tenerrimum. 



Stereum cupulatum Patouillard in Duss, Fl. Crypt. Antilles 

 Fr. 233. 1904. 



Scattered or close together, orbicular, from resupinate 

 becoming cup-shaped, attached by a dorsal point, coriaceous, 

 rigid, hard; external face glabrous, not zonate, brown, the 

 margin entire or sinuate, acute; hymenium pruinose, even, 

 concave, dull cinereous, reddish towards the border; trama 

 compact, brown-umber; spores cylindric-ovoid, colorless, 6X3 n; 

 no cystidia. 



Fructifications 6-8 mm. in diameter. 



On bark of Prunus Dussii. Forest of Buins-Jaunes. Duss, 

 212. 



The above is a translation of the original description; the 

 species seems to be very near, if at all distinct from, Stereum 

 vibrans, which Patouillard did not recognize among the species 

 of Guadeloupe. 



Stereum fragile Patouillard, Soc. Myc. Fr. Bui. 16: 179. 

 1900; Sacc. Syll. Fung. 16: 187. 1902. 



Fructification resupinate at first, becoming dimidiate, orbic- 

 ular, rigid, hard, more or less incised at first, the margin erect 

 and acute; upper surface plane, ochraceous russet, tomentose, 

 with some reddish and nearly glabrous concentric zones; trama 

 1 mm. thick, whitish, compact; hymenium plane, livid, becom- 

 ing purplish; cystidia abundant, fusoid, not colored, thin-walled, 

 40X10 /x. 



On decaying wood. Guadeloupe. 



This fungus is very fragile and divides radially with great 

 ease. Its aspect is like that of S.fasciatum, S. lobatum, etc., but 



