Phyllosticta innumerabilis Peck 1909

Phyllosticta innumerabilis Peck, Bull. Torrey Club
36: 336. 1909.
Spots large, suborbicular or irregular, often covering more than half the leaf, brownish, the brown color gradually blending off into the healthy tissue of the leaf, visible on both sides of the leaf but more conspicuous on the under side; pycnidia numerous, scattered over the infected spot, restricted to the under side of the leaf, yellowish, reaching a diameter of 80100 fx; spores 1.5 X 6-8 p., on long sporophores about 1 X 10-20 /x.
On Malaceae:
Amelanchier alnifolta Nutt., Nebraska.
Amelanchier sp., Nebraska. Type locality : Fort Niobrara, Nebraska, on A melanchier sp. Distribution: Nebraska.