206 ARTHUR-BISBY— TRANSLATION OF SCHWEINITZ'S 



Prenanthcs, Leontodon and Hieracium, all Cichoriaceous composites, 

 while here Schweinitz has extended the use of the name to Car- 

 duaceous composites, and even legumes. Link at the place cited 

 reduced this name to a synonym, together with twenty-two others, 

 under his inclusive species, C. apiciilosum. The species has no value 

 in the modern sense, being a concept supported only by superficial 

 characters, and represented by an incongruous mixture of species. 



2845. 35. C. U. appendiculosum, Lk. 91, Syn. Car. 477, and Bethlehem. 



(477. 19. [Uredo] appendiculata. Common on Phaseolus and on 

 Pisum sativum. (Cseomurus.) ) 



A record in the North Carolina list that is not accounted for in 

 the later one may be entered here, as it is the same rust, although 

 placed by Schweinitz under Puccmia and erroneously referred to a 

 name belonging to another species of rust. 



(490. 5. [Puccinia] Aviculariae /3/3 Fabse. Not infrequent on 

 Phaseolus.) 



Represented by a mounted packet loosely containing three leaf- 

 lets of the garden bean {Phaseolus vulgaris L. ) and two leaflets of 

 garden pea, while the original packet labelled " Cseoma (Ured) ap- 

 pendiculos Beth," has one leaflet of bean and two of pea. The bean 

 leaflets are well covered beneath with uredinia. The pea leaflets 

 are discolored with spots but have no rust ; furthermore, no rust 

 has ever been found in America on the garden pea, Pisum sativum. 

 Schweinitz mistook the spots for a common European rust, which 

 he naturally expected to find under the same conditions here as in 

 Europe. 



The rust on the leaflets of Phaseolus, the common bean, is 

 Uromyces appendiciilatus (Pers.) Fries. The European rust on 

 Pisum is a diflferent species. The specimen preserved doubtless 

 represents no. 477 of the Carolina list, showing the uredinial stage 

 of the rust, while no. 490 of the same list is unrepresented by a col- 

 lection, and as it was placed under Puccinia, doubtless had reference 

 to the telial stage of the same rust. 



