Haemmatoma persoonii

Spore Ascus

Thin Section

Thallus

Lichen Index

Haemmatoma persoonii spore.

All members of this genus, at least those in North America, have thin elongate spores but the number of cell divisions (septa) vary within the species. H. persoonii may have 5 to 7 septa (or 6 to 8 cells).