Spores resemble those of aged spores of S. pellucida under a dissecting microscope, except they have a smaller size range and few spores are oblong. They also are almost indistinguishable from spores of S. dipurpurascens, which is very similar in size, shape, and color and differs in its inner wall structure by having only one thin layer in gw1 instead of two layers.
We suggest this species to be categorized as Least Concern (LC).
The species is known in 15 countries.
There are about 146 records in 15 countries (GBIF), when searching Scutellospora calospora.
Population Trend: Uncertain
In Brazil, the species is common in Amazon, Atlantic Forest, Caatinga and Cerrado.
It presents no evident threat. However, it is found in the Atlantic Forest, a hotspot, in the Amazonia and Cerrado (also a hotspot). Also, Caatinga is threatened with desertification.
Most records are in area with native vegetation of Brazil. The isolation of this fungus in controlled condition represents an advance for the conservation of this species.
Other areas should be studied in order to assess the distribution of this species.
Koske R. E., Walker C. 1986. Species of Scutellospora (Endogonaceae) with smooth-walled spores from maritime sand dunes: two new species and a redescription of the spores of Scutellospora pellucida and Scutellospora calospora. Mycotaxon 27, 219-235.
Jobim, K., Vista, X. M., & Goto, B. T. 2018. Updates on the knowledge of Arbuscular Mycorrhizal Fungi (Glomeromycotina) in the Atlantic Forest biome–an example of very high species richness in the Brazilian landscape. Mycotaxon, 133(1), 209-209.
Wang, F. Y., & Shi, Z. Y. 2008. Biodiversity of arbuscular mycorrhizal fungi in China: a review. Advances in Environmental Biology, 2(1), 31-39.
Marinho, F., da Silva, I. R., Oehl, F., & Maia, L. C. 2018. Checklist of arbuscular mycorrhizal fungi in tropical forests. Sydowia, 70, 107-127.
Cofré, M. N., Soteras, F., del Rosario Iglesias, M., Velázquez, S., Abarca, C., Risio, L., ... & Lugo, M. A. 2019. Biodiversity of Arbuscular Mycorrhizal Fungi in South America: A Review. In Mycorrhizal Fungi in South America (pp. 49-72). Springer, Cham.