Genus

Xylomyces

Species

rhizophorae

Author

Kohlm. & Volkm. –Kohlm, Fungal Divers. 1: 160 (1998).

Class

Dothideomycetes

Order

Jahnulales

Family

Aliquandostipitaceae

Synonymy:

Description

Asexual morph: Hyphae 1.5–4 μm diam., mostly superficial, septate, branched, light to dark–brown. Conidiophores and conidia absent. Chlamydospores mostly apical, rarely intercalary, single or in chains, rarely branching, filamentous, straight or curved, mostly widest at the tips, tapering towards the base, 95–370(–500) x (8–)9–16 μm, 5.5–8 μm side at the base, with 11–43(–64) transverse septa, rarely with longitudinal or oblique septa, constricted at some of the septa, smooth, dark–brown, more or less uniform in colour throughout. Sexual morph: UIndetermined.

(Descriptions based on Kphlmeyer & Volkmann-Kohlmeyer (1998) and Suetrong et al. (2011)).

Key references:

Goos RD, Brooks RD, Lamore BJ (1977) An undescribed hyphomycete from wood submerged in a Rhode Island stream. Mycologia 69:280–286.

Kohlmeyer J, Volkmann-Kohlmeyer B (1998) A new marine Xylomyces on Rhizophora from the Caribbean and Hawaii. Fungal Diversity 1:159-164.

Suetrong S, Boonyuen N, Pang K., Ueapattanakit J, Klaysuban A, Sri-Indrasutdhi V, Sivichai S, Jones EBG (2011) A taxonomic revision and phylogenetic reconstruction of the Jahnulales (Dothideomycetes), and the new family Manglicolaceae. Fungal Divers 51: 163-188.

Type & Location:

Other Specimens:

Substratum:

saprobic on dead mangrove wood, dead mangrove leaves.

Habitat:

Distribution:

Martinique.

Pertinent Literature:

Comments:

NOTES: Xylomyces, typified by X. chlamydosporus, is characterized by lacking conidiophores and conidiogenous cells but producing large, dark, multi–septate, fusiform chlamydospores (Goos et al. 1977). Xylomyces rhizophorae, discovered from dead submerged roots and branches of Rhizophora mangle, was isolated and it differs from other Xylomyces species in having thinner chlamydospores with consistently more septa and a marine occurrence (Kohlmeyer & Volkmann–Kohlmeyer 1998). Both these species require re-collection, isolation and sequencing to determine their taxonomic position in the Jahnulales. Xylomyces species group in the family Aliquandostipitaceae (Jahnulales) (Suetrong et al. 2011).

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