ORTON: NORTH AMERICAN SPECIES OF ALLODUS 1 97 



Distribution: Florida to Mexico and the West Indies; also 



probably in South America. 

 ExsiccATi: Barth. Fungi Columb. 24^6; Rav. Fungi Am. 792. 



Note. — Aecidiitni Ipomoeae-panduranae Schw., and Aecidium 

 convolviilatuni Link, are species of Albugo according to notes in 

 the Arthur Herbarium. 



28. Allodus insignis (Hohv.) comb. nov. 

 Puccinia insignis Hohv. Ann. Myc. 2: 392. 1904. 



Aecia of secondary form epiphyllous, occurring singly or in 

 groups of two or three on rather large yellow spots; aeciospores 

 not seen owing to lateness of collection. 



Telia chiefly epiphyllous, in annular groups surrounding the 

 aecia, dark chocolate-brown, small, pulvinate, rupturing at apex 

 to form a characteristic ostiole; teliospores ellipsoid, 25-31 by 

 52-69 fx, usually narrowed above ; w^all dark chestnut to chocolate- 

 brown, 3-3.5 M thick, moderately and very inconspicuously verru- 

 cose-striate, the apex 12-23 M thick, narrow^ed to form a semi- 

 hyaline apiculus, slightly rugose at base; pedicel colorless, up to 

 85 IX long. 



On Convolvulaceae: 



Ipomoea Wolcottiana Rose. 

 Type locality: Cuernavaca, Mexico, on Ipomoea sp., now deter- 

 mined as /. Wolcottiana {Holway, September 25, 1895). 

 Distribution: Known only from the type locality. 



29. Allodus nocticolor (Holw.) comb. nov. 

 Puccinia nocticolor Holw. Ann. Myc. 2: 391. 1904. 



Aecia chiefly hypophyllous, in groups over nearly the entire 

 leaf; aeciospores 19-24 by 24-29^1; wall 2-3/1 thick, thickened 

 above 5-8 11, very finely verrucose. 



Telia chiefly epiphyllous, in confluent groups opposite or about 

 the aecia, early naked, blackish; teliospores terete to fusiform, 

 26-32 by 51-71 m; wall dark chocolate-brown, 3-4 ix thick, coarsely 

 and sparsely verrucose, the apex 12-19 fx thick, nearly con- 

 colorous; pedicel up to 160^1 long, tinted close to the spore, fre- 

 quently swollen below to twice the average diameter. 



On Convolvulaceae: 



Ipomoea fistulosa Mart, and Ipomoea intrapilosa Rose. 

 Type locality: Cuernavaca, Mexico, on Ipomoea hitrapilosa. 

 Distribution: Mexico. 

 ExsicCATi: Barth. N. Am. Ured. 1461. 



