• Proposed
  • 2Under Assessment
  • 3Preliminary Assessed
  • 4Assessed
  • 5Published

Acaulospora lacunosa J.B. Morton

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Scientific name
Acaulospora lacunosa
J.B. Morton
Common names
IUCN Specialist Group
Assessment status
Proposed by
Lilian Araujo Rodrigues
Comments etc.
Lilian Araujo Rodrigues

Assessment Notes

Taxonomic notes

Acaulospora lacunosa results from the distinctive ornamentation in its spores. Pitted spores are also produced by A. cavernata,  A. foveata, A. paulinae, A. scrobiculata, and A. undulata. However, the pits of A. lacunosa spores are more both irregularly-shaped and scattered. Additionally, spores of A. cavernata and A. foveata are darker-coloured and larger, and those of A. paulinae and A. undulata are smaller and lighter.

Why suggested for a Global Red List Assessment?

We suggest this species to be categorized as Least Concern (LC) due to the several records worldwide.

Geographic range

The species is known in 10 countries.

Population and Trends

A very common species in several countries. It has 94 data according to GBIF when searching Acaulospora lacunosa.

Population Trend: Stable

Habitat and Ecology

In Brazil, this fungus is found in forests under different biomes: Caatinga, Atlantic Forest and Cerrado. In addition to anthropized environments (Agrosystems, Pastures and Mining).

Subtropical/Tropical Dry ForestSubtropical/Tropical Moist Lowland Forest


In Brazil, Acaulospora lacunosa can be found in associated with biomes that have high rates of anthropic disturbance, such as deforestation.

Housing & urban areasTourism & recreation areasShifting agriculture

Conservation Actions

Some records in Brazil are in unprotected areas. The isolation of this fungus in controlled condition represents an advance for the conservation of this species.

Research needed

Other areas should be studied in order to assess the distribution of this species.

TaxonomyPopulation size, distribution & trendsLife history & ecology

Use and Trade




Marinho, F., da Silva, I. R., Oehl, F., & Maia, L. C. 2018. Checklist of arbuscular mycorrhizal fungi in tropical forests. Sydowia, 70, 107-127.
Wang, F. Y., & Shi, Z. Y. 2008. Biodiversity of arbuscular mycorrhizal fungi in China: a review. Advances in Environmental Biology, 2(1), 31-39.
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.
obim, 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.

Country occurrence

Regional Population and Trends

Country Trend Redlisted