Lophium key 1 Ascospores 150-190 x 1.5-2 µm, not helically coiled in the ascus; on wood and bark of a range of different conifer species mytilinum Ascospores 240-270(-280) x 1.5-2 µm, helically coiled within the ascus; only known on Juniperus elegans Taxonomic term: Lophium