Descriptions of New Species of Fungi, 



215 



Peziza acetabulum, L. — On the ground. Cincinnati, April 30, 1842.* 

 Psilopezia, nov. gen. 



Hymenium planum, ascigerum, omnino immarginatum, strato tomen- 

 toso, innatum, asci ampli: sporidia elliptica, binucleata. 



Psilopezia nummularia, n. sp. — On a decayed log in a wet place. 

 Cincinnati, July 16. 1842. 



Orbicular, one third of an inch broad, flat, purple brown, growing on 

 a white, tomentose stratum, which forms a narrow border; asci large, 

 containing eight large, elliptic binucleate sporidia. The characters of 

 this genus are precisely those of Pyronema, which was founded on the 

 old confluent state of Peziza omphalodes. It has the habit of Corti- 

 cum with the hymenium of a Peziza, from which it is distinguished 

 I)}- the total absence of any true margin. The name of Pyronema is 

 evidently inapplicable to the present species. 



Patellaria carpinea, Berk.. Peziza carpinea, Pers. — On Horn- 

 beam. 'Cincinnati, Oct. 31, 1839. 



This is not a good Peziza, though it certainly has asci and sporidia. 

 The former are clavate, the latter submnbiform. Ditiola, to which 

 Fries is inclined to refer it has no asci. It appears to me evidently 

 congeneric with P. rhabarbarine, Berk. 



Sph.eria multiformis, Fr. — Kentucky hills, four miles from the Ohio.f 



Sph^erta deusta, Hoffm. — On dead logs. Cincinnati, Apr. 24, 1842.* 



Sph^eria (Lignos^:) tinctor, Berk. — On dead buttonwood (Platanus 

 occidentalis. Cincinnati, March 14, 1842. 



Effusus, innatus, planus, sculpturam matricis e myceiio miniatse su- 

 perficie referens, intus extusque ater ; peritheciis elongatis, collo brevi, 

 ostiolo inconspicuo. — Berk, in Hook. Lond. Journ. Bot., vol. iv., p. 311. 



Forming a black, widely effused stratum, exhibiting all the markings 

 of the matrix, which is tinged to the depth of a quarter of an inch, 

 orange red, black both within and without; stroma hard, half a line or 

 more thick; perithecia vertical, elongated, with a very short neck; os- 

 tiola not visible externally even under a lens. Analogous to S. hy- 

 pomilta, Mont., related to 8. stigma. The stroma is quite distinct 

 from the wood, though it exhibits on' its surface all its markings. It 

 has the habit of the tribe Concrescentes. 



* This species, it will be observed, retains its early appearance in America. 



t The effused variety. 



I The young Thelephoroid state. 



