70 THE BOTANICAL MAGAZINE. iyo\. xxy. No. 290. 



triangular in form, 5 fi long 2-5 fx broad ; asci oblong or cylin- 

 drical, rounded at the apex, stipitate below, straight or curved, 

 8-spored, 38-50 a long, 10-12 11 broad ; spores arranged in 2- 

 rows, elliptical or oblong, unicellular, granular or uniform, IS- 

 IS fJL long 4—5 broad, hyalin ; paraphyses absent. 



Hab. On the leaves of living branches of Chamadcyparis ob- 

 tusa S. et Z. Prov. Alino : Kawauj^e-mura (K. Hara I Augu. 2. 

 1910). 



Mycosphaerella PoulowniaB Shirai et Hara no v. sp. 



Perithecia scattered, immersed, globose or hemisphgerical, 

 ostiolum papillate, raembranaceus, dark brown, 80-120 /jl high, 

 70-120 ju broad ; asci oval, cylindrical, straight or curved, 8- 

 spored, 40—60 /j. long 10-12 n broad ; spores, usualK- 2-seriate, 

 sometimes obliquely 1-seriate or in 2-rows, elliptical or fusi- 

 form 1-septate, with an oil drop in each cell, constricted at 

 the septum, h3'alin, 10-13 ft long 5-6 ft broad ; paraphyses 

 absent. 



Hab. Leaves of Poulownia tomentosa (Thunb) H. Br. 

 Prov. Alusashi : Komaba near Tokyo (K. Hara ! oct. 9. 



1910), Prov. Mino : Kawauye-mura (K. Hara ! Aug. 20. 

 1910). 



This fungus first forms small roundish dark brown spots on 

 the surface of the leaves of tlic host. After a time these spots 

 increase in the size, and run into each other, forming large ir- 

 regular patches on which perithecia appear as minute black 

 dots. As a consequence the diseased leaves fall earl}' in sum- 

 mer and the growth of the wood is greatly retarded. 



Mycospharella Zingiberi Shirai et Hara sp. nov. 



Perithecia scattered, immersed, globose or hemisphcefical, 

 subepidermal, membranaceus, with or without papilla at the 

 apex, dark brown, 60-80 ti or rarel}' 120 ti in diameter ; asci 

 numerous, clavate or ovate, straight or curved, 8-sporcd, 50- 

 75 /i long, 10-16 fi broad ; spores arranged in 1 or 2-rows, 



