64 NOTICES OF NORTH AMERICAN FUNGI. 



595. Stilbum xhoidis. B. <f- C. — Stipite sursum atteniiato cine- 

 reo ; capitulo nigro ; sporis oblongis. ( Periconia Rhois^^c\rff&m.) 



On bark of Rhus copalliva. Car. Inf. No. 1445. 



Stem cinereous, attenuated upwards ; head globose, black, some- 

 times proliferous ; spores oblong. The stem varies a good deal in 

 thickness. 



596. Stilbum leucocephalum. B. & C. — Stipite elongato nigro 

 granulato, capitulo elliptico candidohispidulo ; sporis subglobosis. 



On bark of Carya, Car. Inf. No. 2410. Stem black, elon- 

 gated, slightly dilated at the base, granulated ; head elliptic, mi- 

 nutely hispid, -white ; spores subglobose or shortly subelliptic. 

 Atracthim comes under SpJnerostilbe. Tubercvlaria is omitted as 

 consisting of mere conditions of Nectrice or other S2)hce7i.acei, 



597. Hyalopus parasitans. B. <5' 6'.— Albus minutus ; stipite sur- 

 sum attenuate; capitulo obovato subirregulari ; sporis oblongis. 

 minutissimis. 



Parasitic, on a decayed Ilentlius. Car. Inf. No. 2475. 



Stem with a few articulations, coated below, attenuated up- 

 wards, when barren very acute ; head large, obovate, rather irre- 

 gular ; spores very minute, shortly oblong. 



598. Hyalopus mucoiinus. B.SfC. — Albus; stipite filiformi in- 

 articulato ; capitulo clavato ; sporis minimis globosis. 



On hen's dung. Car. Inf. No. 2759. 



Stem slender, white, simple, without any articulations ; head 

 clavate, about \ as long as the stem ; spores very minute, globose. 



599. Hyalopus griseus. B. tf- C. — Effusus griseus ; floccis mycelii 

 decumbeatibus articulatis, fertilibusiuarticulatis ; capitulo clavato; 

 sporis oblongis. 



On wood, under the bark of Nyssa. Car. Inf. No. 2688. 



Effused ; threads of the mycelium decumbent, articulated ; 

 fertile threads inarticulate, pale flesh coloured ; heads clavate, \ as 

 long as the stem ; spores olilong, abundant, grey. 

 Chondromyces. B. Sf C. 



Stipes e floccis compactus ramosus induratus ; sporje apicales. 

 Berk. Crypt. El. cum icone. 



600. Chondromyces crocatus. B.&C. — On decayed melons. Car. 

 Inf. No. 1335. 



Stem closely compacted, orange, subcartilaginous, branched, the 

 branches more or less divaricate, nodular at the apex ; spores elon- 

 gato-ovate, with a very short pedicel. 



fT? 



