Genus

Ebullia

Species

octonae

Author

(Kohlmeyer) K.L. Pang, Mycoscience 56: 40 (2015) [MB#805905]

Class

Sordariomycetes, Subclass Hypocreomycetidae

Order

Microascales

Family

Halosphaeriaceae

Synonymy: ≡Nimbospora octonae Kohlm., Canadian Journal of Botany 63 (6): 1122 (1985)

Description

Ebullia K.L. Pang, Mycoscience 56: 40 (2015)

Ebullia octonae (Kohlmeyer) K.L. Pang, Mycoscience 56: 40 (2015) [MB#805905]

≡Nimbospora octonae Kohlm., Canadian Journal of Botany 63 (6): 1122 (1985)

Index Fungorum Number: 805905 Faceoffungi Number: N/A

Saprobic on wood, Sexual morph: Ascomata subglobose to ampulliform, immersed, ostiolate, with long necks, coriaceous, dark brown to black above, hyaline to brown below. Peridium two–layered, much thicker at the base. Necks periphysate. Asci eight–spored, clavate, pedunculate, unitunicate, thin–walled, early deliquescing, developing at the base of the ascoma venter on a convex cushion of ascogenous cells. Ascospores ellipsoidal, oneseptate, not or slightly constricted at the septum, hyaline, with a gelatinous sheath enclosing 6e7 subulate equatorial appendages evenly distributed around the septum and one similar appendage at each end; swells in water. Asexual morph: Undetermined.

Description based on Chu et al. (2015).

Key references:

Chu Y,Alias SA, Rizman I, Guo SY, Pang KL (2015). A molecular reappraisal of Nimbospora (Halosphaeriaceae, Microascales) and a new genus Ebullia for N. octonae. Mycoscience, 56:34–41.

Jones EBG, Suetrong S, Sakayaroj J, Bahkali AH, Abdel–Wahab MA, Boekhout T, Pang KL (2015). Classification of marine Ascomycota, Basidiomycota, Blastocladiomycota and Chytridiomycota. Fungal Diversity 73: 1–72.

Kohlmeyer, J (1985). Nimbospora octonae, a new marine ascomycete from Hawaii. Canadian Journal of Botany, 63: 1122–1125.

Sakayaroj J, Pang KL, Jones EBG (2011). Multi–gene phylogeny of the Halosphaeriaceae: its ordinal status, relationships between genera and morphological character evolution. Fungal Diversity, 46: 87–109.

Type & Location:

Other Specimens:

Substratum:

Saprophytic on intertidal trapped driftwood.

Habitat:

Distribution:

Brunei, Hawaiian Islands, India, Taiwan.

Pertinent Literature:

Description based on Chu et al. (2015).

Comments:

NOTES: Initially described as Nimbospora octonae from Hawaii (Kohlmeyer 1985), it was made the type species of the new genus Ebullia after a partial molecular study of 18S and 28S rRNA gene sequences. The phylogenetic study showed that the genus Nimbospora was not phylogenetic as N. octonae did not group with the type species N. effusa. Nimbospora effusa groups with N. bipolaris in a well–supported clade, with Naufragella spinibarbata forming a sister group. Nimbospora octonae, however, clusters with Haligena elaterophora in a separate, well–supported clade. Morphologically the ascomata of N. octonae differ from those of N. effusa and N. bipolaris by their thick peridium, and ascospores that lack equatorial tufts of appendages but possess polar and equatorial subulate appendages after the sheath is dissolved. The genus belongs in the Halosphaeriaceae (Sakayaroj et al. 2011) and is accepted as marine fungus by Jones et al. (2015).

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