116 
Mycologia 
Type collected at Glen Echo, Maryland, on Pinus virginiana, 
May 5, 1907, Miss V. K. Charles. 
Distribution : Atlantic coast in vicinity of type locality. The 
telial stage is known only from about the same region. 
The species resembles Per. delicatulum somewhat in gross ap- 
pearance and in the microscopic anatomy of the spores, but differs, 
as pointed out in a foregoing paragraph, in the character of the 
peridial cells. The alternate stage has been established by cultures 
reported by Hedgcock and Long (Phytopath. 3: 250. 1913), and 
occurs on Coreopsis. At present it is known on C. verticillata 
and C. major. It is now separated from Coleosporium Helianthi, 
with w'hich it was included in the North American Flora (7: 93 
1907), under the name Coleosporium inconspicuum (Long) Hedg. 
& Long. 
3. Peridermium Fisceieri Kleb., Zeitschr. Pf.-Kr. 5: 71. 1895 
0. Pycnia not seen. 
1. Aecia flattened laterally, 0.5-1. 5 mm. long, 0.5 mm. high; 
peridial cells in face view broadly ellipsoid, slightly overlapping, 
the inner wall finely verrucose, the outer wall merely punctate; 
aeciospores broadly ellipsoid, more or less angular, 18-25x25- 
32 fx, the wall thin, up to 2 n, closely and moderately verrucose. 
On Pinus sylvestris L., “ Evergreen Nursery,” Sturgeon Bay, 
Wisconsin ( Dazns , June 25, 1913). 
Type collected in Europe. (The type collection has not been 
seen, and the data in hand do not enable us to give details.) 
In December, 1912, Dr. J. J. Davis transmitted to the junior 
author a specimen of Coleosporium from J. G. Sanders, which 
was collected by him in a nursery at Sturgeon Bay, Wis., on Sept. 
19, 1912. This proved to be Coleosporium Sonchi-arvensis 
(Pers.) Lev., on Sonchus asper, and the first collection of the 
rust for North America. 
In June, 1913, Dr. Davis visited the locality where the Coleo- 
sporium occurred and found aecia “ in profusion on Pinus syl- 
vestris,” as he wrote in a letter. Material of this collection has 
been carefully studied, and although it does not agree exactly with 
the descriptions given by European students, it is here listed, and 
with some confidence, as no other collection on the leaves of the 
