208 ARTHUR-BISBY— TRANSLATION OF SCHWEINITZ'S 



If a rust were really present, as there may have been, it was 

 Uromyces Fabcu (Pers.) DeBary, which is occasionally found on 

 the English bean, V. Faha, in America, but is more common on 

 native species of Vicia and Lathyrus. 



*2848. 38. C. U. Lobelise cardinalis, L.v.S., rather rare on the under surface 

 of leaves of Lobelia cardinalis, Nazareth. 

 C. spots obsolete, sori effused-confluent, not elevated, or surrounded 

 by the epidermis. Spores effused, pedicelled, chocolate-purphsh. 



Represented by a lanceolate, serrate leaf, about 6 cm. long, and 

 1.5 cm. wide, mounted, and by an empty packet labelled on the 

 inside " Uredo Lobeliae cardinal," and on the outside " Caeoma 

 (Ured) LohelicB Cardinal LvS. Beth." 



The leaf is well covered with a brown efifused growth due to a 

 Hyphomycetous fungus, Cercospora cffusa (B. & C.) E. & E. 



*2849. 39. C. U. Thalictri, L.v.S., very rare but beautiful, on leaves of 

 Thalictrum cornuti, Bethlehem. 

 C. spots none. Sori pulvinate, roundish — a line or more in diameter, 

 widely aggregated, somewhat surrounded by the epidermis. 

 Spores rather large, and from chocolate to fuscous. 



Represented by part of a leaf, 1.5 by 2 cm., mounted, and by 

 an empty packet labelled " Cseoma (Ured) Thalictri LvS. Naz." 



The leaf is thickly and evenly covered with round, brown sori, 

 bearing 2-celled, and a few i -celled, teliospores of the characteristic 

 form belonging to Polythelis Thalictri (Chev.) Arth. {Piiccinia 

 Thalictri Chev.), on Thalictrum polygamiim Muhl. [T. Cornuti 

 Auct.). 



*2850. 40. C. U. brunneum, L.v.S., on leaves of an unknown plant from the 

 collection of Mr. Collins, Philadelphia. 

 C. spots yellowish, on the upper surface of the leaf. Sori applanate, 

 irregular in form, variously confluent. Spores minute, brown- 

 fuscous, at first conglutinate. 



Represented by an oblong leaflet, about 3.5 cm. long, apparently 

 leguminous, mounted, and by an empty packet labelled " Cseoma 

 (Ured) hrunca in fol exot Collins." 



The leaf bears reddish-brown spots on the upper surface, their 



