orton: north American species of allodus 193 



Distribution: Known only from California. 

 ExsiccATi: Sydow, Ured. <?77, 878; Rab.-Wint.-Paz. Fungi Eur. 

 4022; Barth. N. Am. Ured. 349, 1256. 



21. Allodus asperior (E. & E.) comb. nov. 



Puccinia asperior Ell. & Ev. Bull. Washb. Lab. 1: 3- i884- 

 Dicaeoma a^perius Kuntze, Rev. Gen. 3^: 468. 1898. 

 Puccinia oregonensis Earle, Bull. N. Y. Bot. Card. 2: 349- 1902. 

 Allodus oregonensis Arth. Result. Sci. Congr. Bot. Vienne 345. 



1906. 



Aecia hypophyllous, caulicolous, usually m large groups, otten 

 covering the entire surface of leaflets and considerable portions 

 of the stems and petioles; aeciospores 18-22 by 20-29 m; wall 1.5- 

 2 u thick, finely verrucose. , 



Telia hypophyllous, caulicolous, scattered or in small groups, 

 often confluent, rather long covered by the epidermis, chocolate- 

 brown; teliospores broadly ellipsoid to oblong, 21-26 by 29-40 Mj 

 wall chestnut-brown, 2.5-3.5 M thick, the apex rarely thickened 

 up to 5M, coarsely and sparsely tuberculate; pedicel colorless, 

 rarely as long as the spore. 



On Ammiaceae: 



Leptotaenia dissecta Nutt. {Ferula dissoluta S. Wats.). 

 Type locality: Klickitat Co., Washington, on Ferida dissoluta 



(June, 1883). 

 Distribution : Pacific Coast regions of the United States. 

 ExsiccATi: Barth. N. Am. Ured. I2ig. 



j^olQ^ — Piiccinia oregonensis was originally described as on 

 Sanicula. The host is Leptotaenia. 



22. Allodus Musenii (E. & E.) comb. nov. 

 Puccinia Musenii Ell. & Ev. Bull. Torrey Club 27: 61. 1900. 

 Puccinia Seymourii Lindr. Med. Stockh. H6gsk. Bot. Inst. 4«: 4- 



1901. 



Aecia unknown. . 



Telia amphigenous, caulicolous, scattered or confluent in large 

 groups, long covered by the epidermis, black; teliospores broadly 

 ellipsoid, 18-25 by 29-42 m; wall dark chestnut to chocolate-brown, 

 2-3 M thick, the apex 4-7 m thick, conspicuously but finely verru- 

 cose, especially at apex; pedicel colorless, usually deciduous, 

 rarely 3 or 4 times the length of the spore. 



14 



