MOULDS KEFERRED BY AUTHORS TO FUMAGO. 253 



Stratum thinly planted, but rising considerably from the matrix, 

 so that the branched peridia are evident to the naked eye ; 

 mycelium thin ; articulations elliptic, slightly constricted ; 

 peridia elongated, loosely branched, the lateral divisions equalling 

 the main divisions in length, and, like them, lageniform (fig. 7). 

 Sporidia oblong-elliptic, bi-triseptate, hyaline, possibly immature. 

 Capnodium Caroliniense differs from the others in having the 

 lateral peridia quite as strongly developed as the main ones from 

 whence they spring. In this and C. Persoonii young germinat- 

 ing plants, whether from sporidia or germs is doubtful, present 

 a triangular or tricuspidate outline, the angles at length being 

 elongated into filaments. 



9. C expansu7n, Berk, and Desm. Late expansum velutinum ; 

 peridiis conicis brevibus connatis saepe filamentis brevibus liberis 

 moniliformibus obsitis ; sporidiis tri-septatis oblongis curvulis. 

 Lea, No. 248. 



Extremely common in Ohio, on the bark of Acer nigrum, 

 which it clothes with a velvety stratum, rendering the trunks black. 

 T. G. Lea, Esq. From the ' Herbarium ' of Sir W. J. Hooker. 



Stratum widely expanded, continuous, velvety. Mycelium 

 consisting of branched moniliform threads ; articulations almost 

 globose. Peridia conical, rather obtuse, crowded, connate, 

 short, scarcely branched, rough from the free ends of the 

 moniliform threads which enter into the structure of their outer 

 coat. Sporidia oblong, slightly curved, 3-4 septate. (Fig. 8.) 



Remarkable for its widely expanded stratum and short crowded 

 conical peridia. Tiie sporidia possibly have not been seen 

 mature. In this species a joint of the mycelium sometimes 

 swells exactly as in Antennaria. 



10. C. ausirale, Mont. Ambiens, velutinum ; peridiis subdi- 

 chotomis utplurimum obtusis ; mycelio ramoso moniliformi, 

 articulis diametro brevioribus ; sporidiis ellipticis fenestratis. — 

 Drumm., No. 192. 



Surrounding the branches of Coniferce. Swan River. Mr. 

 Drummond. From the ' Herbarium ' of Sir W. J. Hooker. 



Fig. 9. — Stratum thick, velvety. Mycelium branched, com- 

 posed of moniliform threads, the articulations of which are 

 broader than long, strongly constricted, and containing a single 

 nucleus. Peridia more or less dichotomous, obtuse, sometimes 

 swelling at the apex and depressed, sometimes lageniform. Asci 

 broad, obovate, containing eight elliptic sporidia, which have four 

 or five transverse and several longitudinal septa. 



Distinguished from the other species by its peculiar peridia, 

 and from all except C. Schivei7iitzii in its elliptic fenestrate 

 sporidia, which are not constricted at the sutures. With C. 

 expaiisum it agrees in habit, but diifers in every essential cha- 

 racter. 



