NOTICES OF NORTH AMERICAN FUNGI. 61 



Spots pallid, in a hollow on the underside of the leaves ; pseu- 

 doperidia crowded, short, radiated. 



* iEcidium violae. D.C. — Canada, Poe. No. 6162. Hickory- 

 Island. Detroit River, Dr. Maclagan. No. 482. 



580. iEcidium Fetezsi^. B. Sf C— Pseudoperidiis gregariis cylin- 

 dricis e macula flava oriuudis. 



On petiole of violet. Alabama, Peters. No. 4007. 

 Pseudoperidia gregarious, cylindrical, seated on a yellow spot. 

 Distinct from the last. 



581. iEcidium hypericozum. B. <^ C. — HypojDhyllum ; maculis 

 nulHs ; pseudoperidiis panels in orbiculas parvas dispusitis. 



Alabama, Peters. No. 4:b77. 



Hypophyllous ; spots none ; pseudoperidia few, short, collected 

 into little orbicular patches ; not the same with ^. hypericatum. 



* iEcidium epilobii. D.C. — On Ltcdwigia. Santee River. Rave- 

 nel. No. 1722. On Isnardia alternifolia. Ohio. 



* iEcidium Claytoniatum. Schn-ein. — On Claytonia Caroliniana. 

 Montreal, Dr. Maclagan. No. 541. 



* 582. iEcidium hydnoideum. B. 4- C. — Maculis orbicularibus 

 rufulis ; pseudoperidiis albis obtusis circinantibus sero apertis. 



On Dirca ixdiistris. Alabama, Peters. No. 3994. 

 Spots pale rufous, orbicular ; pseudoperidia circinating, white, 

 obtuse, at length opening. 



* iEcidium hibisciatum. Schwe'm. — On Hibiscus moschatus. 

 Alabama, Peters. No. 3999. 



* iEcidium grossulaziae. D.C. — Canada, Poe. No. 6161. On 

 Ribis cynosbata. Kingston. 



583. iEcidium pulchezzimujiii. liar. — Pseudoperidiis niveis 

 cylindricis totam superficiem occupantibus obtusis dein apertis nee 

 radiatis. 



On Berchemia. Car. Inf. No. 1799. 



Pseudoperidia occupying the whole surface, snow-white, cylin- 

 drical, obtuse, at length open ; edge not radiated. 



* iEcidium Orobi. D.C.—On Psorcdea floribunda. Texas, Capt. 



Pope. No. 4844. On Desmodium. Alabama, Peters. No. 4582. 

 On Trifolium. Canada, Poe. No. 6158. 



Var. leucostictum, pseudoperidiis minutis sparsis vel parce 

 congestis. On Lespedeza angustifolia. Minute, scattered, or col- 

 lected into small patches. Var. elegans, hypophyllum totam 

 superficiem occupans nee congestum; pseudopericUis apertis. 



On Trifolium Caroliniense. Car. Inf. Ravenel. No. 2591. 

 Occupying the whole under surface of the leaf ; pseudoperidia 

 open. 



* 2:cidium fzaziui. ScTiivem, — On Fraxinus Americana, Penn- 

 sylvania, Michener. No. 4832. 



