University of Arizona, Gilbertson Mycological Herbarium, specimen-based (ARIZ)
ARIZ-M-AN03011
b95a8831-55ae-4256-95e4-1953d816cf02
AN 036944
Passalora pteleae (G. Winter) U. Braun
Mycosphaerellaceae
Paul D. Keener
Paul D. Keener
PH-184
1959-08-29
August 29 1959
USA, Arizona, Coconino, Hermit Trail, West of Grand Canyon Village, South Rim, Grand Canyon National Park
on Ptelea angustifolia Benth. (Hop-tree)
This species of Ptelea is not listed in Chupp's Monograph as a host for this fungus. This is K-178 in Keener's Grand Canyon Herb. Series. Host identified by C.T. Mason, Jr. (Leaf spot)