202 Bulletin 313 



in more or less evident longitudinal rows ; pedicel hyaline, short, de- 

 ciduous." 



1045. Aecia, 2/3. 1(M6. Peridial cells, 1/12. 1047. Aeciospores, 1/12. 1048. 

 Uredospores, 1/12. 



Allodus claytoniata (Schw.) Arth. — On Claytonia virginica. 

 "Aecia amphigenous, regularly scattered, often over large areas and 

 covering entire leaf and petiole, aeciospores 13-21 by 18-23 fj.; wall 

 1-1.5 /i thick. 



Telia chiefly hypophyllous, often thickly scattered, sometimes con- 

 fluent, small roundish, tardily naked, cinnamon-brown, pulvinate, 

 ruptured epidermis noticeable, teliospores elliptical to terete, some- 

 limes angular, 18-27 by 30-48 jn; wall light cinnamon-brown, 1.5-2 fx. 

 thick, apex often thickened up to 7 /x by a hyaline papilla, evenly and 

 finely verrucose ; pedicel colorless, short." Orton, C. R., North .-Vm- 

 erican Species of Allodus. — Mem. N. Y. Bot. Garden 6, p. 184 

 (1916). 



1049. Infected plant of Claytonia virginica showing aecia. 1050. Infected 

 leaf of same showin!? telentospores. 1051. Cross-section of secia, 2/3. 1052. 

 Peridial cell, 1/12. 1053. Aeciospores, 1/12. 1054. Telentospores, 1/12. 



Allodus PODOPHYLLi (Schw.) Arth. — On Podophyllum peltatmn. 

 "Aecia chiefly hypophyllous, closely gregarious on yellowish spots, 

 sometimes over large areas; aeciospores 18-24 by 19-29 fi; wall about 

 1 fj, thick, minutely verrucose.'' 



"Telia amphigenous and caulicolous, small, round, often gregari- 

 ous in more or less orbicular areas on yellowish spots, tardily naked, 

 chocolate-brown; teliospores clavate to elliptical, 19-26 by 40-55 fi, 

 wall chestnut-brown, uniformly 1.5-2 fi thick, sparingly beset with 

 spines about 7 fx long; pedicel golden yellow, rarely half length of 

 spore." Orton, C. R., North American Species of Allodus. — Mem. 

 N. Y. Bot. Garden 6, p. 187 (1916). 



1055. Aeciospores, 1/12. 1056. Teleutospore, 1/12. 



