288 



Mycologia 



I. Aecia gregarious, protruding from the host tissue, often with 

 common base, cylindrical, grayish-yellow, with apex first rounded, 

 later lacerating, 1-3 x 0.3-0.6 mm. ; aeciospores broad-ellipsoid, 

 globose or subangular, grayish-brown, verrucose, 18-28 /x in diam. 



On Amelanchier asiatka, collected by Hara in Kawauye-mura, 

 prov. Mino (Gifu-ken). 



Description from Hara's first article: 



III. Telia caulicolous, formed on fusoid swellings, roughened at 

 first, later lacerate, exposed as purplish-brown masses ; teliospores 

 cylindric-clavate or rarely sub fusoid, 1 -septate, upper cell being 

 broader and shorter, 45-75 x 15-20 /a, wall 1.5 ^ thick, the pores 2 

 in both upper and lower cells near the septum, or 1 apically in the 

 upper and 2 in the lower cell, germinating mostly from the apical 

 pore; sporidia ellipsoid, ovoid or globose, 12-15 x 7-10^. 



On Juniperus rigida. 



Revised description of III in the second article of Hara: 



" Telial masses chestnut-brown or purplish-brown, at first hemi- 

 spheric, later becoming flat by union, or liquify, varying in size, 

 smallest about 5 mm. in diam., largest several inches broad, occa- 

 sionally surrounding the twig; teliospores 2-celled, rarely 1- or 

 3-celled ; 2-celled spores with thick, colored wall, ellipsoid, broad- 

 ellipsoid, subfusoid or ovoid, the cells equal in shape but lower cell 

 being a little longer and narrower than the upper, upper cell occa- 

 sionally papillate, not constricted or slightly constricted, both ends 

 rounded or narrowed, 35-50 x 20-25 /x, those round ones measuring 

 .28-33 x !8- 2 8 ju, wall 1.5 fi thick, the pores 2 or 1, mostly one apical 

 in the upper cell, two lateral near the septum in the lower cell ; 

 colorless spores ellipsoid, cylindrical or fusoid, the cells unequal, 

 upper cell larger and flatter, lower cell cylindrical or tapering to- 

 ward the pedicel, 50-55 x 16-23 jx, wall 1 /x thick, the pores one 

 apical in the upper cell, or two near the septum as in the lower cell ; 

 3-celled spores elongated, contents brown or yellow- rust color, 1- 

 nucleate, 65-75 x 18-20 //,; pedicels cylindrical, very long, hyaline, 

 3-5 /x thick ; promycelia clavate or cylindrical, 3-septate ; sterigmata 

 3-4; sporidia ellipsoid ovoid or reniform, 10-15 x 7-10 /*." 



Related to G. Miyabei Yamada & Miyake much closer than to 

 G. japonicum Syd. Inoculations by Yamada and by Hara, con- 

 ducted independently, resulted in the formation of aecia on 

 Amelanchier asiatica. 



Notes : The telial stage found on Juniperus rigida was first 

 identified as G. tremelloides Hart. (Hara in Shok. Zass. 27 313 : 



