184 Bulletin 313 



"II. Uredosori amphigenous, yellowish-brown, linear, 2-3 mm. or 

 longer, either scattered or confluent in long streaks, especially on 

 sheatlis, pulverulent, soon naked, surrounded by ruptured epidermis. 



"Uredospores elongated ellipsoid to ovate oblong, brownish-yel- 

 low, echinulate, generally with 3-4 equatorial germ-pores on one 

 face 20-36 x 14-18 fi." 



"111. Teleutosori sparingly on leaf blades, more commonly on 

 sheaths, stalks and inflorescence, linear, elongated, pulvinate, often 

 confluent, up to 10 mm. or more, dark brown to dense black, soon 

 rupturing epidermis which is prominent. 



"Teleutospores clavate to oblong-clavate, chestnut-brown, smooth 

 somewhat constricted at septum, very rarely 3-celled, 35-63 x 14-25 

 fM, average 52- x 18 //, upper cell rounded or pointed at apex, rarely 

 truncate, considerably thickened (up to 12 fi) sometimes as broad as 

 long 21-29 fjL long; lower cell attenuated towards base, equal to or 

 longer than upper, 18-35 ^ long ; pedicel persistent, elongated, tinted, 

 and sometimes as deeply colored as spore, of equal thickness 

 throughout, up to 73 x 8 fx,. 



"Mesospores very common, intermixed in the same sorus with 

 uredo and teleutospores, similarly colored, dark chestnut or paler, 

 oblong to elongated ellipsoid, generally slender, rounded, pointed or 

 truncated apex and thickened like teleutospore, smooth, 34-46 x 

 10-15 /a; pedicel generally short or of moderate length. Occasion- 

 ally an obovate form occurs, deeply colored, rounder and thickened 

 at apex and much broader than usual, up to 22 fj., with elongated 

 pedicel."— McAlpine, Rusts of Australia, p. 120 (1906). 



Note: — We find this rust on the stems only. 



996. Infected wheat culm. 997. Uredospores, 1/12. 998. Teleutospores, 

 1/12. 



PucciNiA GROSSULARI^ (Schum.) Lagcrh. — On Carex pallescens. 

 Described by Arthur (manuscript) as follows : 



"O. Pycnia chiefly epiphyllous, gregarious, on discolored spots, 

 usually in groups, 0.5-1.5 mm. across, honey-yellow becoming darker 

 with age, flattened globose, 80-180 fi in diameter; 75-150 ^i high, 

 ostiola filaments 65-100 jx long. 



"I. Aecia chiefly hypophyllous, but appearing also on the twigs, 

 petiole and young fruits, gregarious, usually appearing on more or 

 less orange-colored hypertrophied areas, 2-8 mm. across, cupulate, 

 0.2-0.3 mm. in diameter, peridium short, spreading, the margin 

 slightly recurved, irregularly dentate, peridial cells rhomboidal, 21-27 



