190 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



Type locality: Rio Hondo, ^Mexico, on Arracacia multifida 



(Pringle, May 9, 1891). 

 Distribution: South Central Mexico. 

 ExsicCATi: Ell. & Ev. Fungi Columb. 2060. 



17. Allodus Jonesii (Peck) Arth. Result. Sci. Congr. Bot. 



Menne 345. 1906 

 Puccinia Jonesii Peck, Bot. Gaz. 6: 226. 1881. 

 Puccinia Cymopteri D. & H. Bot. Gaz. 18: 233. 1893. 

 Dicaeoma Cymopteri Kuntze, Rev. Gen. 3^: 468. 1898. 

 Dicaeoma Jonesii Kuntze, Rev. Gen. 3^: 469. 1898. 

 Aecidiiim Leptotaeniae Lindr. Medd. Stockh. Hogsk, Bot. Inst. 



4^: 8. 1901. 

 Puccinia Traversiana Syd. Monog. Ured. 1: 889. 1904. 



Aecia chiefly hypophyllous, caulicolous, gregarious in roundish 

 to oblong groups on yellowish spots; aeciospores 16-23 by 18-26 (x; 

 wall 1-1.5 M thick, finely verrucose. 



Aecia amphigenous and caulicolous, scattered when foliicolous, 

 often confluent on the stems, tardily naked, chocolate-brown to 

 blackish; teliospores broadly ellipsoid to oblong, 18-24 by 29-43 fi; 

 wall dark cinnamon to chestnut-brown, 2-2.5 M thick, usually 

 uniform, very minutely punctate to conspicuously verrucose, the 

 tubercles usually arranged in longitudinal striations; pedicel 

 colorless, deciduous, rarely the length of spore. 



On Ammiaceae: 



Aulospermimt Betheli Ostcrh., A. pnrptireum (S. Wats.) C. & R. 

 {Cymopterus purpureusS. Wats.), Cogswellia Jocniculacea (Xutt.) 

 C. & R. {Peucedanum foeniculaceum Nutt., Lomatium foenicu- 

 laceum C. & R.), C. Grayi C. & R. {Peucedanum Grayi C. & R., 

 Lomatium Grayi C. & R.), C. macrocarpa (Nutt.) Jones {Peuce- 

 danum macrocarpum Nutt., Lomatium macrocarpiim C. & R.), 

 C. nevadensis (S. Wats.) Jones {Peucedanum nevadensis S. 

 Wats.), C. orientalis (C. & R.) Jones {Peucedanum nudicaule 

 Nutt., Lomatium orientale C. & R.), C. platycarpa (Torr.) 

 Jones {Peucedanum simplex Nutt., Lomatium platycarpum 

 C. & R.), C. Suksdorfii (S. Wats.) Jones {Peucedanum Suks- 

 dorfii S. Wats., Lomatium Suksdorfii C. & R.), C. triternata 

 (Pursh) Jones {Peucedanum triternatum Nutt., Lomatium triter- 

 natum C. & R.), Cymopterus acaulis (Pursli) Rydb., C. Fendleri 

 A. Gray, Cynomarathrum Eastwoodii C. & R., Leptotaenia 



