K.D. Hyde & E.B.G. Jones, 1989b. Mycotaxon, 34: 527.



Ascomycetes: genera incertae sedis



Type species:

Rhizophila marina K.D. Hyde & E.B.G. Jones, 1989b. Mycotaxon, 34: 527.

Sexual morph: saprobic, Ascomata: 500-960 µm in diam., 425-730 µm high, globose to subglobose, immersed in the substratum, ostiolate, papillate, periphysate, coriaceous, dark brown to black, solitary or gregarious. Peridium: 45-112 µm thick, 2-layered, the outer layer is thick, composed of a highly melanized layer of irregular hyphae interspersed at the outside with the host cells, the inner layer, thin, hyaline, composed of irregular thin-walled elongate cells which fuse with the paraphyses-like structures. Necks: up to 515 µm long, 113-198 µm in diam., black, of similar structure to the ascomata outer wall layer. Paraphyses: like structures 3-11 µm wide, consisting of irregular shaped cells, septate. Asci: 74-101 µm long, 13-24 µm in diam., 8-spored, 2-3 seriate, clavate, pedunculate, unitunicate, thin-walled, with an indistinct apical thickening, slightly truncate, without an apical apparatus, developing from ascogenous tissue lining the base and sides of the ascomata wall. Ascospores: 20-28 x 7-10 µm, ellipsoidal or fusiform, one-celled, hyaline when immature, yellowish to yellowish brown at maturity. Asexual morph: Undetermined (Description based on Hyde & Jones (1989b)).


Key references:

Borse BD, Bhat DJ, Borse KN, Tuwas AR, Pawar NS (2012) Marine Fungi of India. Broadway Book Centre, India.

Hyde KD, Jones EBG (1989) Marine fungi from Seychelles. VIII. Rhizophila marina, a new ascomycete from mangrove prop roots. Mycotaxon. 34(2):527-533.

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.


Type & Location:
Other Specimens:
saprobic on dead mangrove wood, prop root and branches of Rhizophora mucronata.
Andaman Island, Australia, Brunei, India, Indonesia, Malaysia, Maldives, Mauritius, Seychelles, South Africa, Thailand.
Pertinent Literature:
NOTES: Rhizophila marina is a widely occurring species in tropical locations, especially on mangrove wood, prop roots and Rhizophora droppers, especially harder woods. Ascomata are usually deeply embedded in the substrata. It has been frequently reported from India on Rhizophora wood (for further details see Borse et al. 2012). Although frequently collected there is no sequence data to aid its classification within the Ascomycota. The species is listed in Jones et al. (2015) as Ascomycota incertae sedis.


Mushroom Research Foundation 
Chiang Rai 


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