118 
Mycologia 
5. Peridermium californicum sp. nov. 
0. Pycnia 04-0.7 mm. broad by 0.5-1 mm. long, low-conoidal, 
about 90 /x high. 
1. Aecia tongue-shape, 0.7-1. 5 mm. long by 0.8-1. 2 mm. high; 
peridial cells ellipsoid in face view, usually rounded at both ends, 
overlapping, 29-35 x 50-87 ix, the side walls 5-7 /x thick, the inner 
walls rather coarsely and closely verrucose with slightly irregular 
papillae; aeciospores broadly ellipsoid, 25-29x40-45 /x, the wall 
3-4.5 /x, moderately and rather coarsely verrucose. 
On Pinus radiata Don. (P. insignis Dough), California ( Hoi - 
zvay). 
Type collected at Monterey, California, on Pinus radiata , Feb- 
ruary, 1908, E. W. D. Holway. 
Distribution : Known only from the type locality on the coast 
of middle California. 
The collection here described as a new species has been made, 
as the date will indicate, since the publication of our first paper. 
It was at first determined as Per. montanum but a more careful 
study reveals the fact that it differs very markedly in the peridial 
cells. In this species the peridial cells are longer, thicker-walled, 
more coarsely verrucose, and more overlapping than in Per. mon- 
tanum. These distinctive morphological characters together with 
the fact that there are several unattached species of Coleosporium 
in the region where the collection was made seem to be sufficient 
to warrant its recognition as a new species. 
6. Peridermium acicolum Underw. & Earle, Bull. Torrey Club 
23: 400. 1896 
0. Pycnia o. 3-0.5 111m. broad by 0.5-0.8 mm. long, low-conoidal, 
80-100 /x high. 
1. Aecia flattened laterally, 0.5-1 mm. long by 0.6-1. 2 mm. high ; 
peridial cells ellipsoid to ovoid in face view, 23-27 x 40-70 /x, over- 
lapping, the side walls 5-9 /x thick, very coarsely and prominently 
verrucose with closely set papillae of varying size; aeciospores 
ellipsoid or obovoid, 20-24 x 28-40 /x, the wall closely and coarsely 
verrucose, with prominent, somewhat deciduous tubercles, some- 
times with a smooth spot extending up one side, varying in thick- 
ness from 3-4 fx below up to 5-6 /x in the upper part. 
On Pinus pungens Mill., Pennsylvania (Charter Oak, June 2, 
1913, Orton & Adams). 
