As Hamaspora longissima Körn. Written in pencil on label: (Hamaspora = subgenus under Phragmidium see Sacc. VII.2.p.750) Phragmidium longissimum Thuem. = Hamospora longissima (Thuem.) Koern. see Syd. Mon. Ured. 3:79 1912 & see CABI Bioscience Website Sept. 2002