402 
description, prove totally distinct, it seems hardly wise to us to 
establish a new species without first seeing the type of the one to 
which it has been referred. On this principle of /azssez faire we 
retain with some mental reservations the above name. 
This species seems to have a wider range of host plants 
as well as a greater geographic distribution than the preceding. 
We have examined specimens as follows: 
_ On Pinus taeda. Georgia (Ravenel, Underwood); Alabama 
(Underwood & Earle). 
On Pinus palustris. South Carolina ( Ravenel ); Florida ( Martin, 
Underwood ); Alabama (Earle & Underwood); Mississippi (Earle & 
Tracy). 
On Pinus sp. Missouri ( J. G. Barlow ). 
‘This handsome species is quite abundant in the Southern 
States, and while found more commonly on comparatively young 
trees .it frequently appears: on trees of considerable size. It was 
first distributed by Ravenel as Accidium pini of which he curiously 
gives Peridermium pineum Schw. as a synonym, notwithstanding 
Schweinitz alludes distinctly to the peculiar gall-like growths thet 
are discussed under the following species. Later Ravenel dis- 
tributed the same thing under the name of P. orientalis [sic] Cooke. 
The spores are small, rotund or broadly oval, and like the pe- 
ridial. cells, thickly beset with long weak obtuse spines; in size 
they are variable, averaging 204. The peridial cells approach 
rectangular, are truncate and placed end to end, are variable in 
size, averaging about 40 by 25 w, and readily separate from one 
another; they are thickly beset with long, obtuse echinulations, — 
which, when seen from above, give the appearance on a casual SS 
amination of being radiate-striate on the margin.* 
Exsicc. Ravenel. Fungi Carol. fasc. 1, no. 93 (as Aectdium pint. a 
Ravenel. Fungi Amer. 270. 
Ellis. N. A, Fungi, 1026. 
Seymour & Earle. Economic Fungi, 224 (as Peridermiam : 
pint var. acicolum). ae 
* This character is common to all the species of Peridermium we have &© 
amined, though it seems to have been overlooked, since the peridial cells are usually 
described as wrinkled or striate margined. The echinulations are ee pee 
because in this sone 
