84 
Plowrightia fruticola, E. & E. On (lead stems of Clematis ligusticifolia. 
Plowrigmtia morbosa, (Scliw.) Sacc. On branches of Prunus Virginian a. Com¬ 
mon. 
Plowrightia symphoricarpi, Ell & Gal. On dead stems of Symplioricarpus occi¬ 
dentals. Common. 
Cincinnobolus cesatii, DBy. In the hyphse and conidia of Erysiphe cichoracearum 
DC. and on Cnicus undulatus. I found these specimens near Helena in October 
of last year. Of .all the Erysiphe on various hosts I have collected in various 
parts of Montana this was the only specimen bearing this secondary parasite. 
Phoma tiiermopsidis, Ell. & Gal. On dead stalks of Thermopsis rhombifolia. I 
found this on an old stalk attached to a fine Pksenogamic specimen given me 
by my friend, Kelsey. 
Riiinotrichum Curtisii, Berk. On old logs in damp situations, apparently very 
partial to charred wood. 
Zygodesmus obtusus, E. & E. On dead wood of Populus monilifera. 
Cladosporium graminum, Corda. On Poa tenuifolia. Common. 
Cladosporium herbarum, (Pers.) Lk. Common on dead or diseased stems and 
leaves of various plants. 
Cladosporium typharum, Desrn. On Typha latifolia. Common. 
Maciiosporium iridis, C. & E. ? On Iris Missouriensis. Common and destructive. 
Macrospoiiium inquinans, C. & E. On dead stems of Helianthus annum. 
Crucibulum vulgare, (Tul.). On dead sticks of Juniperus Virginiana, also on twigs 
buried in damp soil. Rather common in moist, shady places on Mt. Helena. 
Cyatiius vernicosus, (Bull.) DC. On moist ground, Mt. Helena. Fine specimens 
also grew in Mr. Kelsey’s front lawn last summer, where the garden hose was 
habitually left upon the grass with the water gently flowing. 
Piilebia merismoides, Fr. On dead bark of Populus tremuloides and Salix flaves- 
cens. 
Triciioderma lignorum, (Tode.) Harz. On dead and decaying trunks of trees. 
These names and notes have been culled from my note-book. Neither 
Mr. Kelsey nor myself have attempted any systematic work with the 
Hymenomycetes , owing to the great amount of time and work necessary 
for their successful preservation. But we have many edible species 
here, some kinds of which I have frequently eaten, and it is our hope 
this year to get together all the Ilymenomycetous fungi we can find. 
SOME FUNGI OF CUSTER COUNTY, COLO. 
By T. D. A. Cockerell. 
Mr. Anderson’s interesting notes in the last number of the Journal 
suggest a few remarks on the fungi found here at 8,000 feet and up¬ 
wards, because we have already all his species. Claviceps purpurea 
occurs with us as high as 8,400 feet, but is rather locally distributed. 
Ustilago segetum, contrary to Mr. Anderson’s experience, is quite abun¬ 
dant and injurious to the grain crops, though varying in its destructive¬ 
ness in different years. The threshing operations must tend greatly to 
disseminate the spores, which very readily fly into the air to the annoy¬ 
ance of those working round the machine. 
We have two species of JRcidluvn that are puzzling, and I do not 
