108 



Mycologia 



Puccinia tolimensis Mayor, Mem. Soc. Neuch. Sci. Nat. 5 : 516. 



I9I3 



This species of micro-Puccinia was described from a single col- 

 lection made by E. Mayor on Eupatorium sp., near S'oledad in the 

 Central Andes, Department of Tolima, Colombia, Oct. 6, 1910 

 [No. 64]. Three collections were made by E. W. D. Holway in 

 Guatemala, one on Eupatorium pansamalense Robinson (Holway 

 802) and two on Eupatorium sp. indet. (Holway 22,806). 



On July 22, 191 7, a collection of a short-cycled Puccinia was 

 made by the writer, in company with H. H. Whetzel and E. F. 

 Hopkins, on Eupatorium urticaefolium Reichard, in Bergen swamp, 

 Genessee County, New York. After careful study it has been 

 decided to assign this collection to the above-named species. The 

 distribution, from central New York to Colombia, South America, 

 in isolated localities, suggests that it should be found also in other 

 places. 



Puccinia Parthenices sp. nov. 



II. Uredinia not seen; urediniospores in the telia obovate or 

 ellipsoid, 16-23 by 24-26 fi, slightly flattened laterally; wall light 

 cinnamon-brown, 1.5-2.5 /x thick, very finely and closely echinu- 

 late, appearing smooth when wet, the pores 2, equatorial. 



III. Telia hypophyllous, rarely epiphyllous, round, 0.4-0.8 mm. 

 across, early naked, compact, pulvinate, blackish-brown, ruptured 

 epidermis not conspicuous ; teliospores obovate, oblong or ellipsoid, 

 20-26 by 32-45 fx, rounded or obtuse above, rounded below, slightly 

 constricted at septum; wall light chestnut-brown, 1.5-2.5^ thick, 

 apex thickened 7-9 /x by a broad semi-hyaline umbo, similarly 

 thickened over pore or lower cell at septum, smooth ; pedicel color- 

 less, firm, once to thrice length of spore. 



On Carduaceae [Heliantheae] : 



Parthenice mollis A. Gray, Ft. Lowell, Arizona, Oct. 24, 1903, 

 J. J. Thornber 1029, comm. L. N. Goodding (type) ; Babo- 

 quivari Mts., Arizona, Oct. 24, 1919, L. N. Goodding 43. 

 This species was separated from specimens in the Arthur her- 

 barium tentatively assigned to P. Parthcnii Arth. It differs from 

 that species as now interpreted in both urediniospore and telio- 

 spore characters. The urediniospores in P. Parthenii are globoid 

 or ellipsoid, 20-23 by 23-32^, with walls 3-3.5 /x thick, and the 

 teliospores are ellipsoid, 28-32 by 38-48 fx, with walls 4-5 /x thick. 



