PAPERS GIVING RUSTS OF NORTH AMERICA. 199 



2832. 22. C. U. miniata, Lk. 84, Syn. Car. 463, Salem and Bethlehem. 



(463. 5- [Uredo] miniata. Frequent but only on Rosa pauciflora.) 



Represented by a mounted rose leaf, 7 cm. long, consisting of 

 five leaflets, and the original packet containing one smaller com- 

 pound leaf and a number of leaflets, all similar. There are large, 

 irregular sori on rachis and midribs and annular, pustulate sori on 

 the blades, all secia. The packet is labelled outside " Caeoma (Ur) 

 miniata Salem," and added later " & Bethl & Herrnht." Herrnhut 

 is the place where Schweinitz studied in Saxony. 



The n:aterial apparently is that gathered at Salem, N. C, and the 

 addition of two other localities to the packet indicated the collector's 

 field observations, and not his actual addition to the collection. The 

 host name of Rosa pauciflora is given in Muhlenberg's " Catalogue " 

 as synonymous with R. Carolina L., the name now in use, which is 

 doubtless the species Schweinitz found the rust on. The rust proves 

 to be the aecia of Earlea speciosa (Fries) Arth., formerly called 

 Phragmidium speciosum Cooke. Telia of this species were placed 

 by Schweinitz under the genus Sciridium, no. 3084. The species is 

 not known in Europe, and the selection of Persoon's name, Uredo 

 miniata, has proven unfit, although at the time the two forms could 

 not well have been separated. The transfer of the species to the 

 genus Cccoma was first done by Schweinitz, not by Link. 



*2833. 23. C. U. ruborum, Lk. 86, frequent, Bethlehem. 



Represented by no mounted specimen, but by some ten leaflets 

 in the original packet, which is labelled inside " Cseoma ruborum, 

 Uredo (Rubigo) Rubi In Rub id horti mei fr Oct. 1824," and out- 

 side " Cjeoma (Ur) Rubi Idaei Bethl in hort." The largest of the 

 leaflets is about 6 by 7 cm., and all are pale tomentose beneath, with 

 powdery groups of urediniospores here and there in the tomentum. 

 • The host is doubtless the European red raspberry, Rubiis Idceits 

 L.. then frequently planted in gardens, but now almost wholly re- 

 placed by the similar native form, R. strigosus Michx. The rust is 

 the uredinial stage of Kuehneola Uredinis (Link) Arth., a common 

 species on various raspberries and blackberries, but whose affinities 

 have only been recognized within the last few years. The telial 



