MlYAIiE AND TOGASHI : Two Spkciks OF MOLLISIACEAE- ■J I 



Pseudopeziza Peracapae. sj). nov. 

 (PI. Ill, %. 7-1 1) 



Spots not formed. Apothccia epiphyllou.s, often amphigenous, rarely on 

 the petioles and stems, scattered, .solitary or often two or three aggregated, 

 minute, black. 



Apothecia first developed under the epidermis, then erumpent, disc-shaqcd, 

 sessile, brownish black on the outside, waxy in texture, 380-420/i in diameter 

 and 100/^ in height. Pcridia well de\'eloped, pseudnparcnchymatous, colored. 

 Hypothecia little developed, hyaline. Asci club-shaped, 8-spored, with biseriate 

 or irregular arrangement, hyaline, S3-67X7-10«. A.scospores elliptical-fusiform 

 or oblong-elliptical, unicellular, hyaline with two or three oil-drops, 9.5-14.0 

 X3-0-4.5/'. Paraphyses filamentous with more or less thickened tips, often 

 branched, 55-75X2-3«. 



Hab. On the living lea\-cs and stems of Peracarpa curccoides Feer. 



Hokkaido. Prov. Ishikari, Nopporo, (May S, 1920, May 22, 192 1, May 

 28, 1922, June 4 and 21, 1922, and June 19, 1923, K. Togashi). Mt. Teine, 

 (June 19, 1921, July 4, I92j>, K. Togashi). Prov. Kitami, Rebun Island, 

 (Aug. 10, 1922, K. Togashi). 



The host plant of the fungus in question belongs to an unique genus of 

 Caiitpanidaceac, peculiar to Japan and Himalayan region. It harbors many 

 other interesting parasitic fungi apparently new to science. Our fungus differs 

 from all the described species of Psciidopcziza on Caiiipanulaccae. 



The portion of the leaf on which the apothecia are formed, retains a 

 green color for a long time, while the surrounding portion turns yellowish 

 early in season. 



The pore 'of the ascus does not stain with iodine, showing the fungus to 

 have no relation to Drcpanopeziza of Hohnel. W'c have not yet found the 

 "hibernating form," Pyrcnopcziza of our fungus, nor its conidial stage. 



July 18, 1923- 



Botanical Institute, 



Hokkaido Imperial University, 



Sapporo, Japan. 



