K.D. Hyde & Nakagiri, Syst. Ascom., Reprint of Volumes 1-4




Phyllachorales incertae sedis



Mangrovispora K.D. Hyde & Nakagiri, Syst. Ascom., Reprint of Volumes 1-4 (1982-1985)

10(1): 19 (1991)

Type species:

Mangrovispora pemphii K.D. Hyde & Nakagiri, Syst. Ascom., Reprint of Volumes 1-4

(1982-1985) 10(1): 20 (1991)

Sexual morph: saprobic, ascomata 200-400 µm long x 140-220 µm diam., hyaline or subhyaline, immersed, subglobose to ellipsoidal, axis, horizontal to host surface, ostiolate, papillate, neck bending at 90 °C to protrude through the substratum, membranous, immersed beneath a thin dark stroma, solitary or gregarious. Neck hyaline to light brown, periphysate, hairy. Peridium thin, hyaline composed of thick-walled compressed cells towards the inside, and very thick-walled small cells towards the outside. Hamathecium composed of branching hyphae, which are persistent, numerous, branched, septate and composed of 2-3 µm thick cells and in a gel. Asci 190-300 x 15-23 µm, 8-spored, fissitunicate dehiscence not observed, pedunculate, thin-walled, with a faint apical tube and apical thickening (stain with erythrosin), not amyloid, cylindrical, developing from a cushion of tissue at the base of the ascoma. Ascospores 25-39 x 12-14 µm, uniseriate, ellipsoid to fusiform, hyaline, 3-septate, constricted slightly at the septa, guttulate or not, thin-walled, surrounded by a sheath-like structure. Asexual morph: Undetermined (Description based on Hyde (1991)).


Key references:

Hyde KD (1991) Mangrovispora pemphii gen. et sp. nov., a new marine fungus from Pemphis acidula. Systema Ascomycetum. 10(1):19-25.

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.

Yanna, Ho WH, McKenzie EHC, Hyde KD (2004) New saprobic fungi on palm fronds, including Brachysporiopsis gen. nov. Cryptogamie Mycologie. 25:129-135.

Maharachchikumbura SSN, Hyde KD, Jones EBG, Mckenzie EHC, Huang SK, Abdel-Wahab MA et al. (2015) Towards a natural classification and backbone tree for Sordariomycetes. Fungal Diversity 72: 199-299.

Type & Location:
Other Specimens:
saprobic on intertidal wood of Pemphis acidula
Pertinent Literature:
NOTES: Mangrovispora pemphii is reported from the maritime intertidal plant Pemphis (Lythraceae) and is only known from the host locality Stephens Island (Torres Straits). There is no living culture and recollection, isolation and sequencing is urgently required to determine its taxonomic position in the Sordariomycetes. A second species Mangrovispora irregularis has been described from palm fronds in a tropical forest (Yanna et al. 2004). Maharachchikumbura et al. (2015) do not appear to list Mangrovispora, while Jones et al. (2015) refer it to the Phyllachorales incertae sedis.


Mushroom Research Foundation 
Chiang Rai 


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