Map Lichen

Rhizocarpon cumulatum

Native to:
United States
Map Lichen

National Museum of Natural History (en.wikipedia.org)

📍 View on iNaturalist →

Taxonomy

Division:
Ascomycota | - Sac fungi
Family:
Rhizocarpaceae
Genus:
Rhizocarpon
Species:
Rhizocarpon cumulatum
USDA Symbol:
RHCU5

Growth Characteristics

Growth Habit:
Lichenous
Light Requirements:
Full Sun

Soil Requirements

Soil Type:
rocky, nutrient-poor, well-drained soil
pH:
4.5 - 6.5 (acidic to slightly acidic)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
commonly found on exposed rock surfaces