2G8 



DESCEIPTIVB CAl'ALOGTJE 



Sub-Class Ascomycetes. 



Order PYRENOMYCETES. 



Genus PLEOSPORITES, Suzuki. 

 [Eot. Mag. Tokyo, vol. 24, 1910, p. 191.] 

 A monotypic genus with the following species. 



Pleosporites Shirainus, Suzuki. 



]910. Pleosporites Shirainus, Suzuki, Bot. Mag. Tokyo, vol. 24, 

 pp. 191-194, text-flgs. 2, 3, pi. vii, phot. C. 



Microscopic fungus in which the " hyphse are well developed, 

 septate, 2-5 fi in diameter. Perithecium formed under the 



Text-fig. 21. — Pleosporites Shirainus, Suzuki. Perithecium cut longitu- 

 dinally through the neck and orifice, showing asoi (as) ; paraphyses 

 (pr); hyphsB (%); and epidermis of host (cp). X 370. After 

 Suzuki. 



hypoderma of the leaves of the host, well defined, spherical or 

 somewhat flask-shaped, with an orifice, short-necked, thick - 

 walled, the wall consisting of 5-7 or more irregular layers of 

 thin-walled plectenchyma cells. Asci formed at the bottom 



