Forest Humus Forms Decision Tree  

Terrestrial / Upland Humus forms or Semi-terrestrial / Aquatic Humus forms
Semi-terrestrial / Aquatic Humus forms
Terrestrial / Upland Humus forms
Mull L, Ah
Terrestrial / Upland Humus forms
Moder L, F, Hi, (Ah)
Terrestrial / Upland Humus forms
Mor L, F, H
Semi-terestrial or aquatic Humus Forms
Peaty Mor (L), (F), O(f, m, h)
Semi-terestrial or aquatic Humus Forms
Fibric PeatyMor
Semi-terestrial or aquatic Humus Forms
Mesic PeatyMor
Semi-terestrial or aquatic Humus Forms
Humic PeatyMor
Semi-terestrial or aquatic Humus Forms
Anmoor


The Decision tree is modified after Field Guide to the Substrates of Ontario.