Descriptions of New Species of Fungi. 



213 



Sphjeronema oxyspordm, n. sp. Waynesville, Aug. 3, 1844. 

 Peritheciis subulatis, flavis, apice nudis; sporis ellipticis, utrique 

 appendiculatis. 



Externally resembling Sphceronema subulatum, but distinguished 

 by its spores having an elongated filament at either extremit} r , and by 

 the naked tip of the perithecium, which has a more compact structure. 



Diplodia mori, n. sp. — On twigs of Morus multicaulis. Cincinnati, 

 June 25, 1840. 



Peritheciis globosis, dispersis, siccitate collapsis; sporis obovato- 

 oblongis, pallidis, simplicibns. 



Sometimes ao-oreoate and oblong from the confluence of several in- 

 dividuals; more frequently solitary; occasionally the contents of the 

 spores are attracted to either end, but I do not find a septum even in 

 decaying specimens. 



Septonema spilomeum, Berk. — On fence rails. Cincinnati, March 3, 

 1842; Waynesville, Aug. 27, 1844. 



Soris parvis, punctiformibus, atro-purpureis; fills ramosis; articulis 

 oblongo-ellipticis, scabriusculis, triseptatis. — Berk, in Hook. Lond. 

 Jo.nrn., vol iv., p. 310, tab. 12, fig. 5. 



Forming little scattered, purplish-black sori, about the size of a 

 poppy seed; threads branched; articulations oblongo-elliptie, trisep- 

 tate, one or more of the septa containing occasionally an oil globule; 

 border of articulations pellucid, rough with little scabrous prominences. 

 Very distinct from the other species in its punctiform habit, and the na- 

 ture of the articulations. These are not represented sufficiently irregu- 

 lar in the figure. If is very difficult to get a clear view, as they are so 

 opaque. 



Sporidesmium concinnum, Berk. — On a rotten trunk. Cincinnati, 

 March 31, 1841. 



Sporis primum brevissme pedicellatis, oblongis, obtusis, nitidis, 

 fenestratis. — Berk, in Lond. Journ. Bot.,\o\. iv., p. 309, tab. 12, fig. 3. 



Forming minute, jet-black, crowded sori, which are at length almost 

 confluent; stroma consisting of decumbent, branched threads; spores 

 at first simple, obovate, pellucid, then oblong (the peduncle being en- 

 tirely obliterated), and divided by numerous transverse and vertical, 

 or more rarely oblique septa. 



Puccinia aculeata, Schwein. — On the under side of the leaves of 

 Podoph3'llum peltatum.* 



* Corda Fasc 6, ined. cum optima icone. 



