A most curious genus reached me from T. Hunter, Africa, viz.: 

 a Pyrenomycete simulating a Polyporus. When I first saw it I thought 

 it was a Polyporus belonging to the section 93 Apus Polyporus. 

 although I could not account for carbonous context in a Polyporus. 



PYREXOPOLYPORUS. Stroma pileate, with a smooth surface, 

 and carbonous tissue simulating the pileus of a Polyporus. Growing 

 horizontal, sessile, attached with a small attachment. Perithecia con- 

 tiguous, forming a layer on the under side of the stroma and simu- 

 lating the pores of a Polyporus. 



PYREXOPOLYPORUS HUNTERI (Fig. 1054). Stroma (pile- 

 us) 3-4 inches in diameter, a cm. thick, sessile horizontal, black, with 

 an even, dull, upper surface. Context black, carbonous. Perithecia 

 contiguous, carbonous, forming a layer 2 mm. thick on under surface 

 of the stroma. 



Fracture of the perithecia glaucous to the eye. Mouths covered 

 by a thin, carbonous layer. Asci not seen, probably evanescent as 



in the genus Camillea. Spores 

 6 x 12, colored, guttulate 

 when young, resembling the 

 spores of Hypoxylon and 

 Xylaria. 



We present a photo- 

 graph of the top of the pileus 

 of a half specimen, also an 

 enlargement (Fig. 1055) of 

 a section showing the layer 

 of perithecia. There is no 

 genus heretofore known to 

 which this can even be com- 

 pared. 

 Fig 1055 Type from T. Hunter, 



Africa (No. 71). 



We have also from Mr. Hunter what appears to be a resupinate 

 part of this plant. If this has reached Europe it has probably been 

 named as Xummularia, a genus that we have not looked up in'detail. 

 But Nummularias grow on top of logs with the hymenium up, and 

 Pyrenopolyporus when resupinate must grow on the under side of logs, 

 with the hymenium facing the ground. This, to my mind, is an 

 essentially different, generic idea. 



RARE OR INTERESTING FUNGI RECEIVED 

 FROM CORRESPONDENTS 



V^~ CONGLOMERUS, FROM CHAS. C. PLITT, 

 BALIIMORE (Fig. 1056). Pileus, thin, rigid, developed from a 

 hard, white, conglomerate, myceloid base. Surface unicolorous, 

 between isabellme and honey yellow, velvety with soft hairs, faintly 

 zoned. Pores minute, rigid, alutaceous. Spores 3x5 hyaline 



706 



