.392 



"J'YPE T.OCAlvlTY : Kadiak. Alaska, on Gcraiiinm orkintlmm. 

 DISTRIBUTION: Known only from Alaska. 



This differs from AecMlum sariffuinoJentuin Lindr., which belongs with 

 Puccinia pohjgoni-umphiUi Pers., in having the peridia less exsertec* ^nd 

 less recurved, and in having larger spores. 



3S. AcckJ'mm ByrsonUnatis P. Ilenn. Hedwigia 34:101. 1S95. 



Aecidium hyrsonUnaticola P. Henn. Hedwigia 34:.322. 1895. 



Lmlophyllum singulare Diet. & Holw. Bot. Gaz. 31 :33G. 1901. 



Aecidium Byrsonimae Kern & Kellerm. Jour. Jlyc. 13 :24. 1907. 



On i^IALPHIACEAE : 



Byrsonima crmsslfolia (L.) DC, Guatemala, Jalisco. 



TYPE LOCALITY: Goyaz, Brazil, on Byrsonima sp. 



DISTRIBUTION: Central Mexico and southward. Also in South Amer- 

 ica. 



A strikingly characteristic form with conspicuous poridia ; often pro- 

 duces hypertrophy. 



39. Aecidium XantJwxyli Peck, Bot. Gaz. 6 :275. 1S81. 

 On RUTACEAE: 



Xantlioxylum americanum Nutt., Iowa, Kansas, Missouri, Nebraska. 



Xanthoxi/lum Clava-Herciilis L. {X. Carolinianum Lam.), Texas. 



Xantlioxylum Clava-Iiercxilis fniticosum (A. Gray) S. Wats., Ala- 

 bama. 

 TYPE LOCALITY: Decorah, Iowa, on Xanthoxylum americanum. 

 DISTRIBUTION: Iowa and Nebraska south to Texas and Alabama. 

 EXSICCATI: Carleton, Ured. Am. G; Barth. N. Am. Ured. 102: Ellis. N. 



Am. Fungi WIS; Ellis & Ev. Fungi Columb. i'/77; Rab.-Wint. Fungi 



Eur. 292S; Sydow, Ured. 15 'iS. 



A characteristic species, probably belonging with some grass-inhabiting 

 Puccinia. 



40. Aecidium polyc/alinum Peck, Bot. Gaz. 6 :27.">. 1S81. 

 On POLYGALACEAE : 



Polyyala Senega I^. Iowa, Michigan. ^Yisco^sin. 

 TYPE LOCALITY: Ann Arlmr. Michigan, on I'nliigahi Senega. 

 KISTKIBI'I'IOX : l|ipci- :Mississi|iiM valley. 



