REPORT OF THE STATE BOTANIST IO/X) 27 



Panicum spretum Schultes 

 Near Albany ; Riverhead and Orient Point, Suffolk co. and White- 

 hall, Washington co. July. Formerly confused with Panicum 

 d i c h o t o m u m L. 



Peridermium strobi Kleb. 



Seedling white pines, Pinus strobus L. Lake Clear Junc- 

 tion, Franklin co. October. Perley Spaulding and C. R. Pettis. 

 Our specimens are immature. 



This parasitic fungus is destructive to white pine trees. It is 

 dimorphic. Cronartium ribicola Dietr. is a form which 

 develops on leaves of currant bushes. Its spores are capable of 

 infecting white pine trees and reproducing the pine rust, Peri- 

 dermium strobi, in them. To prevent this it is important 

 that currant and gooseberry bushes whose leaves are attacked by 

 the Cronartium should be destroyed at once. 



Pezizella lanceolato-paraphysata Rehm 



Dead steins of cultivated Spiraea filipendula L. Lyn- 

 donville. June. C. E. Fairman. 



Phaeopezia fuscocarpa (E. & H.) Sacc. 



Decaying wood. Kasoag, Oswego co. July. 



Pholiota aurivella Batsch 



Decaying wood of maple. Near Syracuse. October. F. B. 

 Wheeler. 



» Phomopsis stewartii n. sp. 



Perithecia gregarious, commonly occupying grayish or brown 

 spots, thin, subcutaneous, at length erumpent, depressed, minute, 

 Yz-Yz mm broad, black ; spores of two kinds, first, filiform, curved, 

 flexuous or uncinate, hyaline, 16-25 x I-I -5 ' J > second, oblong or 

 subfusiform, hyaline, commonly binucleate, 8-12 x 2-3 y-\ sporo- 

 phores slender, equal to or shorter than the spores. 



On stems of Cosmos bipinnatus Cav. Garden of Agri- 

 cultural Experiment Station, Geneva, Ontario co. October. F. C. 

 Stewart. 



Perithecia gregaria, maculas griseas seu brunneas vulgo occu- 

 pantia, tenua, subcutanea, deinde erumpentia, depressa, minuta, 

 Yz-Yi mm lata, nigra; sporae dimorphae, primum, filiformes, cur- 



