120 
Mycologia 
24 x 23-39 4, the wall 3-3.5 4 thick, closely and evenly verrucose 
with large deciduous tubercles. 
On Pinus filifolia Lindley, Oaxaca ( Pringle ) ; Jalisco (collec- 
tor unknown). 
Type collected in the mountains above Oaxaca, Mexico, on 
Pinus filifolia, May 28, 1894, C. G. Pringle. 
Distribution: Central Mexico; only two collections known. 
There is no additional information concerning this species. 
The name was an unfortunate selection as there was a Perider- 
mium gracile of Harkness (Bull. Calif. Acad. Sci. 1: 36. 1884) 
on Sarcobatus which has been shown by cultures to be the aecial 
stage of a grass rust ( Puccinia subnitens). 
8. Peridermium intermedium Arth. & Kern, Bull. Torrey Club 
33: 416. 1906 
0. Pycnia 0.3-0.4 mm. broad by 0.5-0.75 mm. long, low-co- 
noidal, 65-80 4 high. 
1. Aecia tongue-shaped, 1.5-3 mm - long by 0.8-1. 5 mm. high; 
peridial cells broadly ellipsoid, 19-34x34-50 4, overlapping, the 
side walls 4-7 4 thick, the inner wall rather coarsely and closely 
verrucose with somewhat irregular tubercles ; aeciospores ellip- 
soid, 16-20x23-29 4, the wall 2. 5-3. 5 4, evenly and moderately 
verrucose. 
On Pinus echinata Mill. (P. mitis Michx.), Arkansas (von 
Schrenk) ; Maryland ( Gallozmy ) ; Missouri ( Barlow 1573, De- 
metrio in Rab.-Wint. Fungi Eur. 3315a) ; North Carolina (Howe, 
von Schrenk ). 
Type collected at Perryville, Missouri, on Pinus mitis, May, 
1883, by C. H. Demeirio (Rab.-Wint. Fungi Eur. 3315a). 
Distribution: From central Missouri and Arkansas to central 
North Carolina. 
No further data concerning the standing or telial connection of 
this species have come to our attention, and it is here retained in 
its original form. The North Carolina localities are new. 
9. Peridermium Rostrupi Ed. Fischer, Bull. Soc. Bot. France 
41 : clxxii. 1894 
O. Pycnia 0.2-0.4 mm. broad by 1-2 mm. long, low-conoidal, 
90-1 10 4 high. 
