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Nautosphaeria is a genus of fungi in the family Halosphaeriaceae. This is a monotypic genus, containing the single species Nautosphaeria cristaminuta, which was found on submerged wood.

The genus was introduced by Jones in 1964. It is characterized by spherical, hyaline to cream-colored ascomata, broadly clavate or ellipsoidal, pedunculate asci and one-celled, ellipsoidal, hyaline (glass-like) conidia which possess a tuft of bristle-like appendages at each end and four tufts around the equator (Jones 1964). Phylogenetic analysis showed that Nautosphaeria was clustered with Tubakiella basal to Halosphaeriaceae family (Sakayaroj et al. 2011).

References

1. ^ Jones, E.B.G. (1964). "Nautosphaeria cristaminuta gen. et sp. nov., a marine pyrenomycete on submerged wood". Trans. Br. Mycol. Soc. 47: 97–101.
2. Lumbsch TH, Huhndorf SM (December 2007). "Outline of Ascomycota – 2007". Myconet. 13. Chicago, USA: The Field Museum, Department of Botany: 1–58. Retrieved 2015-09-24.
3. Sakayaroj, J.; Pang, K.L.; Jones, E.B.G. (2011). "Multi-gene phylogeny of the Halosphaeriaceae: its ordinal status, relationships between genera and morphological character evolution". Fungal Diversity. 46 (1): 87–109.

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