Malmidea hernandeziana is a little-known species of corticolous (bark-dwelling), crustose lichen in the family Malmideaceae.

The distinctive features of this species include a thallus with coralloid-like outgrowths, light-coloured fruiting bodies (ascomata) with a specialised structural layer, relatively large spores that tend to have slightly thickened walls at their ends, and the absence of specific lichen products typically found in other species of the genus.

The type specimen was collected by the author from Henri Pittier National Park (Aragua) at an altitude between 1,100 and 1,200 m (3,600 and 3,900 ft); there, it was found in a tropical mountain rainforest.

The margin of the apothecia is thin, approximately 0.1 mm thick, slightly prominent, and whitish grey in colour.

These ascospores lack septa (internal partitions), with walls that are often slightly thickened at the ends, and are surrounded by a halo measuring 1–1.3 μm.