174 



Mycologia 



according to the nomenclature established by Ridgway in " Color 

 Standards and Color Nomenclature." 



PHYCOMYCETES 



1. Family Chytridiaceae 



1. Urophlyctis pluriannulatus (B. & C.) Farlow. 



In leaves of Sanicula Menziesii, west of Corvallis. June. Not in- 

 frequent. No. 1825. 



ASCOMYCETES 

 1. Family Perisporiaceae 



2. Meliola abietis (Cooke) Sacc. 



This black leaf spot of Abies grandis was collected south of Corvallis. 

 August. Infrequent. No. 1850. 



2. Family Sphaeriaceae 



3. Xylaria Longiana Rehm. 



On oak, Corvallis. April. Infrequent. No. 2001. 



4. Daldinia vernicosa (Schw.) E. & E. 



On burned-out trunk of Quercus Garyana, Corvallis. April. Rare. 

 No. 2003. 



5. Hypoxylon atropunctatum (Schw.) E. & E. 



On bark of Quercus Garyana, Corvallis. April. Common. No. 2000. 



6. Gnomonia Coryli (Batsch) E. & E. 



On lower surface of leaves of Corylus Calif ornica, Corvallis. June. 

 Frequent. No. 2013. 



7. Lasiosphaeria strigosa (A. & S.) E. & E. 



On decayed Alnus stub, west of Alsea. August. Infrequent. No. 

 1963. 



3. Family Hypocreaceae 



8. Nectria episphaeria (Tode) Fries. 



On Diatrype on hazel, Corvallis. May. Frequent. Nos. 1953, 1954, 

 1956. 



9. Nectria Coryli Fuckel. 



On Salix, Corvallis. Infrequent. No. 1939. Collected and determined 

 by H. P. Barss, 



10. Nectria galligena Bres. 



Commonly found causing a canker on several varieties of apple and 

 pear and one variety of quince. It has been identified on one native 

 host, Acer macrophyllum. This species has been collected in many lo- 

 calities west of the Cascade Mountains. Nos. 1804, 1820, 1823, 1895, 

 2097, 2098, 2099, 2101, 2103, 2104, 2106-2112, 2174, 2175, 2213. 



11. Nectria coccinea (Pers.) Fries. 



This Nectria which resembles N. galligena in gross morphology is dis- 



