258 ARTHUR-BISBY— TRANSLATION OF SCHWEINITZ'S 



doubt that this number belongs under Uromyccs appendiculatus 

 (Pers.) Fries, and on Strophostyles helvola (L.) Britton (P. tri- 

 lobus Michx.). 



*2943. 39. P. Fabse, Lk. n. 45, on leaves of V. faba, Nazareth. 



Represented by neither specimen nor packet. Doubtless the 

 rust was Urornyces Fabce (Pers.) DeBary, and on the host named, 

 at that time a plant more often cultivated in America than at 

 present. 



*2944. 40. P. Hyssopi, L.v.S., on leaves of H. scrophularisefolius, Bethlehem 

 occasionally. 

 P. spots yellowish, effuse. Sori aggregated, compact, fuscous, some- 

 what circinate and undulately confluent with each other, at 

 first blackish, small but occurring copiously upon the leaf. 

 Spores fuscous, at length rather lax. 



Represented by a packet, containing a stem, 4 cm. long, with two 

 opposite and petioled leaves attached, and by parts of three other 

 leaves, the largest being 2.5 cm. wide, bearing many groups of telia. 

 The packet is labelled " Puccinia Hyssopi scrophul LvS Beth 26.'' 



The host is now placed under Agastache, as A. scrophularicefolia 

 (Willd.) Kuntze, and the rust is identical with P. verrucosa 

 (Schultz) Link. 



*294S. 41. P. Potentillae, L.v.S., not Phragmidium, Lk., on mature leaves 

 of P. canadensis, on lower surface, Bethlehem. 

 P. sori minute. Spores fuscous, at length black, erumpent, short 

 pedicelled. Spots almost disappearing. 



Represented by an empty packet, labelled " Puccinia PotentiUce," 

 with one other word, not deciphered. 



The rust is undoubtedly the one often called Phragmidium Po- 

 tentillce-canadensis Diet. It was transferred to the genus Kuehneola 

 by the senior author some time since, and again very recently to 

 the genus Frommea, under which it is F. obtusa (Strauss) Arth. 



*2946. 42. P. Ari triphylli, L.v.S., on lower surface of the leaves of A. 

 triphyllum, Bethlehem. 

 P. spots pale, very broad, on the margins of the leaves. Sori large, 



