50 



NOTICES OF NORTH AMERICAN FUNGI. 



On decayed bark. Car. Inf. No. 1906. Nearly 1 inch broad, 

 irregular, depressed, clothed with a dense coat of red ferruginous 

 (peroxyd) powder ; perithecia rather prominent, with a minute osti- 

 olum, sporidia dark, shortly cymbeeforme. 



* Hypoxylon rubricosum. Mont— On ash. Car. Inf. No. 6007. 

 Ravenel. No. 1835. On Ilelia azederach. No. 1795. Sporidia 

 •0004 inch long. 



831. Hypoxylon gemmatum. B. ^ i?at'.— Parvum, piilvinatum, 

 rubiginosum, ostiolis prominulis nigris centro perforatis gemmatis. 



On Liquidamhai\ Car. Inf. Ravenel. No. 1385. 



Small, scarcely a line broad, pulvinate but flat, rubiginous, some- 

 times transverse, studded with the black prominent ostiola, which 

 are perforated in the centre. 



* Hypoxylon perforatum. CSchwein.j — On Arundinaria macros- 

 j^erma. Car. Inf. No. 1010. Ravenel. No. 97. On Cornus 

 Jlorida. No. 1767. 1812. 



832. Hypoxylon Jecorinum. B. ^ Bav. — Effusum pulvere fulvo 

 primum tectum demum jecorinum ; ostiolis prominulis punctatum. 



On logs of Acer ruhrum. Car. Inf. Ravenel. No. 1560. 



Effused, an inch or more long and broad ; at first tawny, dotted 

 with dark ostiola, then liver-coloured. No. 1828. On Platanus, 

 differs only in having the perithecia more prominent. 



833. Hypoxylon florideum. B. 6t C— Effusum unduktum vino- 

 sum pulverulentum, peritheciis abditis ; sporidiis cymbseformibus 

 uninucleatis. 



Car. Inf. No. 1911. On Acer rubrum. Ravenel. No. 1579. 

 Effused for many inches, undulated, clothed with a vinous powder, 

 asci linear, sporidia cymb^form, -0036 long, uninucleate. 



* Hypoxylon decorticatum. CSchwdn.) — Car, Inf. No. 2845. 

 834'. Hypoxylon xnyriangioides. B. tfc Bav. — Orbiculare pulvi- 



natum, ferruginum rugosum, peritheciis prominulis collabentibus, 

 ascis lineari-lanceolatis ; sporidiis fusiformibus curvatis triseptatis. 



On bark of Hornbeam. Car. Inf. Ravenel. No. 1363. 



Orbicular, pulvinate, flat, rugose, ferruginous ; perithecia pro- 

 minent, collapsing ; asci linear-lanceolate, sporidia biseriate, fusi- 

 form, curved, triseptate. 



835. Hypoxylon notatum. B. <f- C— Peritheciis panels majori- 

 bus in pulvinulos congestis, rubiginosis, ostiolo demum truncato 

 perforato. 



On Celtis. Car. Inf. No. 1910. On oak. Car. Inf. No. 

 2205. On Vilurmim dentatum. Pennsylvania, Michener, No. 

 4206. 



Perithecia few, rather large, crowded into a little pulvinate mass 

 clothed with rubiginous powder, ostiola at length prominent, trun- 

 cate, with a central perforation. The sporidia, which are shortly 

 cymbseform, vary a little in size. 



