Zeller: Contributions to Oregon Fungi 187 



128. Armillaria corticata (Fries) Pat. 



On maple, Corvallis. November. Nos. 2053, 2154. This species has 

 the appearance of a Pleurotus except for the presence of a veil which 

 leaves an evanescent annulus or remnants on the margin of the pileus. 

 This is the first report of the species from Oregon. 



129. Tricholoma bicolor Murrill. 



In mixed woods, Corvallis. October to December. Frequent. Nos. 

 2137, 2124. 



This beautiful buff Tricholoma has commonly been found in either 

 deciduous or coniferous woods in and about Seattle, Washington, and 

 near Corvallis, Oregon. It is not among the first Agarics to appear after 

 the rains start in the fall, but comes on in about three weeks and may be 

 found until the first freezing weather. This species usually appears to 

 some extent again in the spring but not so abundantly as in the fall. 

 The dry, pruinose, buff cap and the extremely bitter taste are the char- 

 acters which distinguish this from other Pacific coast species of the genus, 



130. Tricholoma personatum Fries. 



In mixed or coniferous woods, September to December. Common. 



This species is one of the most widely distributed of the Agarics in 

 western Oregon. It is mentioned here because of the enormous size 

 attained, pilei over 18 cm. broad having been measured. It has been col- 

 lected as late in the winter as January 4. At McMinnville several perfect 

 " fairy rings " were observed on December 2. One of these measured 

 15 feet in diameter. 



131. Tricholoma subannulata (Peck) comb. nov. 



In lawns under deciduous trees, Corvallis. October to November. 

 Infrequent. Nos. 2195, 2222. 



Unfortunately Peck described this species from dried specimens and 

 included it in Armillaria.* In North American Flora (10: 30, 1914), 

 Murrill recombined the species as Melanoleuca subannulata (Peck) Murr. 

 Since the species was described from dried specimens some of the dis- 

 tinguishing characteristics were overlooked. The plants are cinnamon to 

 Mars-brown when fresh and although viscid in damp weather the surface 

 is often somewhat scabrous. The gills are white with pinkish tints be- 

 coming tan when bruised, and they distil moisture during humid weather. 

 They are not broad, anastomose or fork in the middle or behind, broader 

 and rounded behind, marked by distinct transverse ridges or striations 

 which persist in the drfecl specimens. The stipe is usually short, stout, 



4- 10 cm. long and 1.5-5-5 cm. thick. The odor is strongly but pleasantly 

 farinaceous. 



132. Clitocybe odora Fries. 



In open wood lots, usually in mixed woods, Corvallis and Philomath. 

 October to November. Nos. 21 16, 2176. 



This species which has not been reported west of Michigan is a 

 rather common species in the Willamette Valley. The pileus is usually 



5- 8 cm. broad but plants have been found 10 cm. broad. 



4 Peck, Bull. Tor. Bot. Club 36: 330. 1909. 



