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THE BOTANICAL MAGAZINE. 



[Vol. XXIV. No. 284. 



Hyphae. These fungal hyphae are very well preserved and 

 measure 2-5 ju in diameter. They are thin walled, look yellow- 

 ish brown and are septate ; the transversal septae are clearly 

 seen everywhere. 



Text-fig. 2. — Pleosporites Shirainus gen. et sp. nov. Perithec'um cut 

 longitudinally through the orifice, showing the plectenchvmatous 

 wall (w). wp, broken part of the wall; ce, carbonized coitents; ip, 

 roundish particles of iron pyrites; ep. epidermis of the leaf of the 

 host. X370. 



Fructifications. As described before, they are represented by 

 a number of pouches developed under the hypoderma of the 

 leaves of Cryptomeriopsis. These pouches are spherical or 

 flask-shaped. They are sometimes situated deeper in the tissue 

 of mesophyll. The superficial one is usually furnished with an 

 orifice, while the deeper-seated one is mostly destitute of it 

 (Phot. 6, PI. VII). The former represents a median or nearly 

 median section through the orifice, and the latter, a section 

 through the body part, escaping the orifice. The diameter 



