ADDITIO.XS TO CEYLON U*UNGI (ll.). 307 



On dead branch of Camellia theifera Dyer, Craig, January» 

 1918 ; No. 5472 in Herb. Peradeniya. 



Thyridaria Pteridis n. sp. 



Stromata immersed, oval in plan, up to 3 mm. long, 0*4 mm. 

 broad, lenticular, 0"4 mm. high, raising the epidermis in 

 elongated oval patches which split longitudinally, upper part 

 consisting of loosely interwoven hyaline hyphse with a black 

 outer layer, the lower half consisting of the host tissues bounded 

 by a black line. Perithecialcavitieslinearly arranged, depressed 

 globose, 04 mm. diameter, 0*2 mm. high, with a distinct thin 

 parenchymatous wall ; ostiola not projecting. Asci clavate, 

 shortly pedicellate, thick-walled, eight-spored, spores biseriate, 

 150-170 X 24-30 [t. ; paraphyses linear. Spores fuscous, 

 cymbiform, slightly curved, usually five septate, occasionally 

 six septate, constricted at the septa, one loculus usually 

 inflated, with a stout, hyaline, gelatinous coat, 32-40 X 8-10 {x. 



On stems of Pteris aquilina L., Hakgala, December, 1917 ; 

 No. 5528 in Herb. Peradeniya. 



Bothidacess. 



Phyllachora Vanderystii Theiss. & Syd. 



On leaves of Panicum plicatum Lamk., Poonagalla, Novem- 

 ber, 1917 ; No. 5690 in Herb. Peradeniya. 



Phyllachora Winkleri Syd. 



On Paspalum scrobiculatum L., Peradeniya, April, 1917 ; 

 No. 5320 in Herb. Peradeniya. 



Catacauma gracillimum (Speg.) Theiss. & Syd. 



On Fimbristylis monostachyg, Hassk., Peradeniya, April, 

 1917 ; No. 5319 in Herb. Peradeniya. 



Oligostroma Strychni n. sp. 



Stromata hyjDophyllous, circular, about 1 mm. diameter, 

 160 f- thick, placentiform, elevated, papillate, immersed in the 

 mesophyll and covered by the epidermis ; loculi oval or 

 sub-globose, crowded, 66-90 X 50-66 \i. Asci clavate, four-, 

 or eight-spored, spores biseriate, 48-60 X 7-13 {a ; no para- 

 physes. Spores greenish -hyaline, narrow-oval or fusoid, 

 sometimes curved, ends obtuse, one septate, septum central or 

 excentric, 18-24 X 4-5 ^. 



