186 Bulletin 313 



little rough at apex, slightly constricted at septum, thickened at apex 

 (6-9 fi), generally rounded at base, 36-50 x 21-27 /x, shade darker 

 than lower, and rather larger, 22-29 x 21-27 /x ; lower cell either the 

 counterfeit of upper or slightly tapering toward base, 17-23 x 20-22 fi, 

 pedicel hyaline, persistent, generalyy much longer than spore, up 

 to 90 and 110 fi long." McAlpine, Rusts of Australia, p. 158 (1906). 



1000. Teleutospore, 1/12. 



PucciNiA iMPATiENTis (Schw.) Arth. (Puccinia argentata 

 (Schultz) Winter.) Uredo impatientia; (Cceoma impatienta; Puc- 

 cinia papillata). — On Impatiens hiflora. 



"Hypogenous. Spots sometimes definite, purple, yellow-bordered, 

 more often effused, on the leaves scarcely thickened, on the petioles 

 and stems swollen ; secidia subcircinate or irregularly scattered, 

 short, deeply and rather coarsely split and much recurved; spores 

 subglobose or elliptical (vertical diameter shorter), epispore thin, 

 apparently smooth, contents finely granular, 15-18 by 18-20 ju,; sper- 

 mogonia clustered above in the center of the definite spots, otherwise 

 sparsely scattered on both sides of leaf." Burrill, Parasitic Fungi 

 of Illinois, p. 224. 



"Uredospore sorl ochraceous or faintly cinnamon-colored, little 

 congested, globose or ellipsoid, spores 16-20 x 14-16 /x, slightly 

 roughened, faintly yellowish, pedicel long, teleutospore sori chestnut- 

 brown, forming spots, often confluent spores elliptical ; oval or sub- 

 clavate, constricted in the middle, apices rotund or attenuated, tip 

 of the apex hyaline, 25-25 x 12-20 [x, brown, granular, smooth, 

 pedicel short, slender, hyaline." 



Saccardo, P. A., Sylloge Fungorum, v. 7, p. 639. 



1001. Aeciospores, 1/12, on Impatiens hiflora. 



Puccinia macrospora (Peck) Arthur. — Described by Arthur 

 (manuscript) as follows : 



"O. Pycnia epiphyllous, few in groups on slightly discolored 

 spots, not conspicuous, subepidermal, in vertical section, flattened- 

 globoid, 128-160 /x in diameter, by 80-100 fi high. 



"I. Aecia hypophyllous, chiefly in annular groups, 1.5-5 mm. 

 across, rather short, 0.1-0.2 mm. in diameter; peridial cells linear, 

 rhomboidal 32-42 jx long, outer wall thin, smooth, inner wall some- 

 what thicker, moderately verrucose, seciospores globoid, very large, 

 37-51 X 32-42 fi, wall colorless, medium thick, 1.5-2.5 fx thicker above 

 5-10 fx, rather coarsely verrucose, aecia on Smilax sp. 



