DESCRIPTION OF AMERICAN UREDINE^. 



49 



Exsic. Ellis N. A. F, 1453. Rabenhorst- Winter, Fungi 

 Europa?i, 3206. 



Apparently a rare species. N. Y., Ind., la. 



9. PucciNiA VERONICA [Sc/itiiii.) Wiuf. ('1881. Die Pilze, 

 I, p. 166.) 



9a. Forma fragilipes, on \'ero)iica viro-inica L., Decorah, 

 la., IFolivay. 



9b. Forma persistens,on \^croiiica viro-in/ca L., Decorah, 

 la., Hohuay. 



Winter (Die Pilze. i, p. i66) assuming that Uredo vci'- 

 oniccB Schum. (1803, Enum. Plant. Sa?ll., 2, p. 228.) was a 

 Puccinia identical with P. vcronicanini DC, united the forms 

 occurring on I 'croiiica in the region covered by his work under 

 the name P. vcroiu'cie (Schum.). Schroter {^Beitrdo-c zur 

 Biologic dcr Pjlcnizen, von F. Cohn, Bd. III., p. 88) uses the 

 name P. vcronicce (Schum.) for the Puccinia on Veronica 

 viontana, and P. vcrouicanim DC. for the species occurring 

 on the other Veronicas. But Rostrup had already shown in 

 1885 in Stiidier i Chr. Fr. Schumacher'' s efterladte Svampesam- 

 linger, that the Uredo veronicce Schum. in the Herb, on leaves 

 of Veronica officinalis, did not belong to the Uredinea2, the 

 leaves being uniformly covered on the under side with a sul- 

 phur-3'ellow growth. So Magnus, in Ueber die ni Europa 

 auf.der Gattung ]^cronica aiiftretenden Puccinia- Art en (Ber. 

 d. deutsch. bot. Ges., VIII, p. 188), uses the name P. veronicce 

 Schroter, for the European Puccinia on l^eronica nwntana. 

 which has sori mostly circinate, spores with firm pedicels, 

 somewhat thickened at the apex, pale brown, smooth. 10-12 

 by 40^ (39-7/i by 10^, Magnus.). In accordance with this 

 decision our specimens should bear the name Puccinia z-croni- 

 caruin DC, forma fragilipes Kcke. and forma -persistens 

 Kcke. as first described by Fr. Kornicke in Hedwigia 1877. 

 p. I., who also reports finding both forms of spores in the 

 same sorus. 



Orig. desc. Puccinia Veronicarum DC. (1S05. Flore Fr. Additions et 

 Corrections du Tome II, No. 5S6*, p. 594.) 

 "Cette espace est I'une des plus caracterisees que nous possedions 



