Myeloconis fecunda is a species of corticolous (bark-dwelling), crustose lichen in the family Porinaceae.

[1] Found in Malaysia and the Guianas, it was formally described as a new species in 1996 by Patrick M. McCarthy and John Elix.

They used the species epithet fecunda because it is "the most abundantly and consistently fertile of the species".

[2] The species is identified by its unique thallus chemistry, which is relatively uncomplicated (containing only myeloconone B as a major compound), as well as its elongated ascospores (ranging from 188 to 300 μm) and comparatively inconspicuous large ascomata in comparison to other related species.

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