Zeller: Contributions to Oregon Fungi 197 



examine fresh specimens of species having a more or less persistent, 

 thick peridium nor those having a thin peridium evanescent at an early 

 stage of development. Since then the observations of one of us and 

 the valuable data, which H. E. Parks of the University of California is 

 continuously procuring, have proven to us yet more conclusively that 

 Chamonixia should be reduced to synonymy or at least subgeneric rank. 

 We have in Gautieria Parksiana possibly as true a Chamonixia-type as 

 presented in Chamonixia caespitosa Rolland. The peridium is thick and 

 persistent. Parks says that in plants (his collection Nos. 356, 812) 

 which had dried in the soil during June the peridium still persisted al- 

 though ruptured in many places. The Oregon collection cited below was 

 taken in June and these plants exhibit a thick peridium. Parks' collec- 

 tions in June were taken from the same area of ten square feet of soil 

 where the type collection of 47 fructifications had been collected during 

 the previous March. We take great pleasure in dedicating this species 

 to Mr. Parks. 



Fig. 5. Basidia and paraphyses of Gautieria Parksiana. X 600. 

 Fig. 6. Spores of Gautieria Parksiana. X 900. 



Gautieria Parksiana is distinct from Chamonixia caespitosa in several 

 characters. The bruised outer surface and cut surfaces of the peridium 

 do not turn blue; the distinct, radicate rhizomorph leads to a branched 

 columella which is not so distinct nor does it divide the fructification into 

 such distinct portions as described for the columella of Chamonixia caes- 

 pitosa. The spores of G. Parksiana are not guttulate and average smaller 

 than those of C. caespitosa. We will defer recombining C. caespitosa 

 until authentic material of this species is examined. 



Specimens examined, Oregon : Benton County, Corvallis. 5. M. Zel- 

 ler (in Zeller Herb. 1970 and O. A. C. Herb. 3392). California: Sara- 

 toga. H. E. Parks 441, type (in Parks Herb. 441, in Zeller Herb. 1678, 

 and in Dodge Herb. 1496) ; Guadaloupe Mines. H. E. Parks (in Parks 

 Herb. 415 and Zeller Herb. 1692). 

 I 93- Gymnomyces pallidus Massee & Rodway. 



Fructification irregular, 3-4 cm. in diameter, light-buff when fresh 

 drying ochraceous-buff to yellow-ochre ; peridium, stipe, and columella 

 lacking; gleba light-buff when fresh, drying light ochraceous-buff; no 

 sterile base; cavities 1-2 mm. broad when fresh, 3-4 to the mm. when 

 dry, irregular ; septa hyaline, about 80 fx broad, not scissile ; basidia 



