''Pachycudonia spathulata'', commonly known as Manzanita butter clumps, is a rare and little-known fungus that grows in association with

manzanita Manzanita is a common name for many species of the genus '' Arctostaphylos''. They are evergreen shrubs or small trees present in the chaparral biome of western North America, where they occur from Southern British Columbia and Washington to O ...

and

Pacific madrone ''Arbutus menziesii'', or Pacific madrone (commonly madrone or madrona in the United States and arbutus in Canada), is a species of broadleaf evergreen tree in the family Ericaceae. It has waxy foliage, a contorted growth habit, and flaky bark ...

trees on the west coast of North America. This fungus was first described in 1942 by

Sanshi Imai was a Japanese mycologist of Hokkaido Imperial University. Eponymous taxa *'' Clitocybe imaiana'' *''Imaia ''Imaia'' is a fungal genus in the family Morchellaceae found in Japan and in the Appalachian Mountains of the US. Taxonomy A monoty ...

as ''Cudonia spathulata'' and renamed by Imai in 1950 to ''Pachycudonia spathulata''. Mycologists are investigating the range of this fungus and seeking new observations and specimen collections.

Notes

References

Helotiales Fungi of North America Fungi described in 1942 Taxa named by Sanshi Imai Fungus species {{Leotiomycetes-stub