orton: north American species of allodus i8i 



On Gramineae: 



Stipa eminens Cav. 

 Type locality: Buenos Aires, Argentina, on Stipa sp. 

 Distribution: California; also in South America. 

 ExsicCATi: Ell. & Ev. N. Am. Fungi JJ50; Arth. & Holw. Ured. 

 2Qa; Ell. & Ev. Fungi Columb. 864. 



2. Allodus pagana (Arth.) comb. nov. 

 Puccinia pagana Arth. Bull. Torrey Club 28: 372. 191 1. 



Aecia unknown. 



Telia amphigenous, scattered, oval, tardily naked, somewhat 

 pulverulent, ruptured epidermis disappearing at maturity; teli- 

 ospores oval to fusiform, 18-23 by 27-35 M> not constricted at 

 septum; wall cinnamon-brown, 1.5-2^1 thick, thickened at apex, 

 up to 3 or 4 jj., sometimes with pale papillae, very inconspicuously 

 verrucose; pedicel colorless, fragile, half the length of spore or less. 



On Alliaceae: 



[?] Allium reticulatum Don. 

 Type locality: Dead Lake, Pikes Peak, Colorado, on Allium 



reticulatum. 

 Distribution: Known only from type locality. 

 ExsicCATi: Clements, Crypt. Form. Colo. 141. 



The host collection in the Arthur Herbarium is fragmentary. 

 This species of rust is placed in Allodus chiefly because pycnia 

 and uredinia are lacking in the collection. 



3. Allodus Calochorti (Peck) Arth. Result. Sci. Congr. Bot. 



Vienne 345. 1906 

 Puccinia Calochorti Peck, Bot. Gaz. 6: 228. 1881. 

 Puccinia anachoreta Ell. & Hark. Bull. Calif. Acad. Sci. 1: 14. 



1884. 

 Puccinia Holwayi Diet. Hedw'igia, 32: 29. 1893. 

 Dicaeoma anachoreticum Kuntze, Rev. Gen. 3^- 467. 1898. 

 Dicaeoma Holwayi Kuntze, Rev. Gen. 3^- 469. 1898. 



Aecia hypophyllous, in oval groups; aeciospores 16-23 by 

 19-26 ju; wall 1.5-2 IX thick. 



Telia chiefly hypophyllous, gregarious or scattered, soon naked, 

 pulverulent, dark chestnut-brown, ruptured epidermis conspicu- 

 ous; teliospores broadly ellipsoid, 19-29 by 29-42 /i; wall chestnut- 

 brown, 1.5-2.5 /i thick, thickened at apex 3-5 m. rather promi- 

 nently verrucose above; pedicel colorless, half the length of spore. 



