Marasmiellus goniosporus D.A. Reid, Aust. J. Bot.

Honan, Amy H., Desjardin, Dennis E., Perry, Brian A., Horak, Egon & Baroni, Timothy J., 2015, Towards a better understanding of Tetrapyrgos (Basidiomycota, Agaricales): new species, type studies, and phylogenetic inferences, Phytotaxa 231 (2), pp. 101-132 : 128

publication ID	https://doi.org/ 10.11646/phytotaxa.231.2.1
persistent identifier	https://treatment.plazi.org/id/5C2387A2-FFDA-FFFC-FF44-FD4BFE66FB3D
treatment provided by	Felipe
scientific name	Marasmiellus goniosporus D.A. Reid, Aust. J. Bot.
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Treatment

Marasmiellus goniosporus D.A. Reid, Aust. J. Bot. 14: 33. 1966.

Synonyms: Pterospora goniospora (D.A. Reid) E. Horak, Sydowia View in CoL 36: 131. 1983.

Tetrapyrgos goniospora (D.A. Reid) E. Horak, Sydowia View in CoL 39: 102. 1987 [1986].

Holotype:— PAPUA NEW GUINEA. East New Britain Prov.: Rabaul, Keravat, on Theobroma cacao ( Malvaceae ), 28 June 1962, D Shaw 3572 ( K).

This is known from a single collection, which was unavailable for study. Based on the protologue ( Reid 1966), this could represent a Tetrapyrgos , albeit the smallest one described with pilei only up to 1 mm diameter. Features that differ from most Tetrapyrgos include: pileipellis terminal cells and cheilocystidia that do not posses bulbous apices and are highly branched; the stipe is tiny, lateral, and does not arise from a basal pad; and no tisues were reported with blue or black pigments. Without further analyses of the holotype specimen or additional material, the taxonomic position of this species remains uncertain.