- PacNW Herbaria Records for Heterocladium macounii
- Search Arctos Database for Heterocladium macounii (Southeast only)
- Search Arctos Database for Heterocladium macounii (entire database)
- Encyclopedia of Life search for Heterocladium macounii
- iNaturalist Observations for Heterocladium macounii in Southeast Alaska
Southeastern Alaska Distribution: Throughout.
Habitat: Frequent and abundant on mesic to dry, shaded rock surfaces, in canyons, on boulders, on cliffs, sometimes forming extensive covering films. From sea level to the lower subalpine.
Comments: Not seen with sporophytes in southeastern Alaska. All the material that has been reported from Alaska as H. heteropteroides has been included here.
Worley's map of Heterocladium macounii collections