Kohlm., Nova Hedwigia 4: 409. 1962.


Sordariomycetes, Subclass Hypocreomycetidae






Naïs Kohlm., Nova Hedwigia 4: 409 (1962)

Type and marine species:

Nais inornata Kohlm., Nova Hedwigia 4: 409. 1962.

Index Fungorum number: 335062                           Faceoffungi number:N/A

Saprobic on woody material, sexual morph: Ascomata: 135-250 µm high, 200-370 µm diam., subglobose to depressed, dark brown to black, coriaceous, superficial or immersed, gregarious, ostiolate, papillate. Peridium: 12-15 µm thick, composed of two or three layers of thick-walled, oblong or ellipsoidal cells. Necks: 100-620 x 30-44 µm, periphysate. Asci: 85-160 x 25-33 µm, thin-walled, unitunicate, 8-spored, clavate, early deliquescing, short pedicellate. Catenophyses: present. Ascospores: 22-32 x 12-16 µm, hyaline, broadly ellipsoidal, 1-septate, slightly or not constricted at the septum, with one large oil globule in each cell and many small ones near the septum and the apices, lacking appendages. Asexual morph: Undetermined.

Description based on Kohlmeyer (1962)


Key references:

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.

Jones EBG, Ju WT, Lu CL, Guo SY, Pang KL (2017) The Halosphaeriaceae revisited. Botanica Marina 60(4): 453–468.

Kohlmeyer J (1962). Halophile Pilze von den Ufern Frankreichs. Nova Hedwigia. 4: 389–420.

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

Type & Location:
Other Specimens:
Driftwood, pine blocks, Spartina alterniflora, test blocks (Bruguiera cylindrica, Rhizophora apiculata, Avicennia alba, Avicennia lanata, Albizia falcata, Castanopsis javanica, Albizia procera, Dicorynia paraensis, Fagus sylvatica, Laphira procera, Ocotea rodiaei, Pinus sylvestris, Pinus sp., balsa), intertidal wood, balsa wood, teak blocks, panels (pine, birch), milfoil, freshwater woody substrata, Spartina spp., mangrove wood, freshwater wood (beech, Scots pine, balsa), herbaceous substrata.
Canada, Pisana shore line, USA (Wyoming, New Brunswick, Maryland, Illinois, Mississippi, North Carolina, Arizona, Florida, Los Angeles, MA, Wisconsin), Rhode Island, Singapore, New Zealand, Indonesia, Hong Kong, Kuwait, Back Bay, England, Wales, Germany, France, Denmark, Malaysia, Japan.
Pertinent Literature:
Description based on Kohlmeyer (1962)
NOTES: Currently two Nais species are known, N. inornata from marine habitats and N. aquatica from freshwater, while Nais glitra was referred to the genus Saagaromyces based on sequence data. Nais inornata is widely reported and worldwide in distribution. Molecular data places Nais in the Halosphaeriaceae grouping with genera with polar unfurling appendages (Jones et al. 2015, In the study by Sakayaroj et al. (2011) it groups with Aniptodera species, and in Jones et al. (2017) it forms a sister group to Nantantispora retorquens with 100% support. Further collections are required with a wider range of genes.


Mushroom Research Foundation 
Chiang Rai 


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