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

The medulla of the verrucae and thallus is white, reacting K+ (lemon-yellow), occasionally showing a slightly orange-yellow hue, and P+ (orange), best observed in sections under a light microscope.

The discs of the apothecia are more or less flat and vary in colour from beige to brownish or dark brown.

The excipulum is of the granifera-type, remaining entire, and is whitish to cream-coloured, bulging, and elevated above the disc.

[1] In terms of chemistry, Malmidea hechicerae is characterized by several xantholepinone substances, detectable using thin-layer chromatography.