Phragmidium mucronatum
(Pers.) Schltdl.
KW [Darwin] 1665. Place of collection: USA; California; Santa Clara County; Stanford University, near. Date of collection: 7 October 1902. Associated organism: Rosa californica (leaf). Collector: Copeland, E.B.. Identifier: Earle. Literature: page(s) Pacific slope fungi, distributed by C.F. Baker, No. 1725.