PAPERS GIVING RUSTS OF NORTH AMERICA. 195 



for while the combination with Cccoma was first made by Link, it 

 was based entirely on Schweinitz's account in his Carolina list. 



2821. 15. C. U. Elephantopodis, L.v.S., Syn. Car. 467, Lk. [n.] 54, only in 



Carolina. 

 (467. 9. [Uredo] Elephantopodis Sz. 



U. rather large, sori depressed, sparse, circular, bright yellow. 



On leaves and stems of Elephantopus tomentosus, very frequent 

 in the autumn. Related to U. farinosa. Older sori leave Peziza- 

 like hollows in the leaf.) 



Represented by a leaf, 4 by 7 cm., mounted, and also a frag- 

 ment of leaf in the original packet, both showing uredinia. The 

 packet is labelled inside " Uredo Elephantopodis Salem," and out- 

 side " Cseoma (Ur) Elephantopodis LvS Salem." 



The rust is now called Coleosporium Elephantopodis (Schw.) 

 Thiim. As indicated for the preceding number Schweinitz adds his 

 name to the Caeoma combination as author of the species although 

 the combination was first made by Link. This was in accord with 

 the opinion then held that the author's name was attached to the 

 species as a voucher for the concept as expressed by the original 

 description and not for the technical formation of the name as ap- 

 plied to a particular specimen, according to present usage. 



2826. 16. C. U. Solidaginis, L.v.S., Syn. Car. 472, common, and Pennsylvania. 

 (472. 14. [Uredo] Solidaginis Sz. 



U. compact, closed, red, linear, sometimes long. 

 Very frequent, almost all large Asters. Solidagos, Vernonias ; 

 related to U. pustulata.) 



Represented by four original packets, and mounted material from 

 two of them. Two smooth lanceolate leaves, probably of Solidago 

 serotina Ait., showing purple discolorations, are mounted, evidently 

 taken from the empty packet marked " i Caeoma (Ured) Solidagi- 

 nnm LvS in maculis purp." A duphcate packet, also empty, is 

 labelled " 2 Caeoma (Ured) Solidagini LvS." The other mount 

 consists of about two thirds of a smooth, lanceolate leaf with entire 

 margin, probably of Solidago scmpervirens. It was doubtless taken 

 from the empty packet labelled inside "Uredo (^cidiuni) ovale 

 Nyk Halsey," and outside " Caeoma ovale Halsey Nyk," with the 



