Pileolaria toxicodendri (Berk. & Ravenel) Arthur 1907

Pileolaria toxicodendri (Berk. & Rav.) Arthur
Uromyces Toxicodendri Berk. & Rav. Grevillea 3 : 56. 1874. Pileolaria brevipes Berk. & Rav. Grevillea 3 : 58. 1874. Uromyces punctalo-striatum Cooke & Hark Grevillea 14 : 8. 1885. Uromyces brevipes Holway, Bot. Gaz. 24: 24. 18V7.
O Pycnia amphigenous, greater number epiphyllous, in rather large groups, crowded, large, * papillose, honey-yellow becoming blackish, subcuticular, flattened-hemisphencal, 60-110// broad, 30-60/* high. Uredinia chiefiy hypophyllous and caulicolous, small, 0.3-0.8 mm. across, round, scattered, or confluent into large groups, especially on ribs and petioles, soon naked, cinnamon-brown, copiously pulverulent, ruptured epidermis inconspicuous ; urediniospores fusiform-ellipsoid, sometimes nearly oblong, 21-27 by 32-45/*, acute or obtuse and somewhat semihyaline at both ends; wall golden-brown, with distinct spiral rows of tubercles, sometimes anastomosing, thick, 4/*, somewhat thicker above, 5-7//, pores 2, near the base, large, indistinct.