Susan Will-Wolf

Anomomorpha tuberculata is a species of corticolous (bark-dwelling) crustose lichen in the family Graphidaceae. Found in rare cerrado vegetation in southern Costa Rica, it was described as new to science in 2011. It is characterised by its conspicuous tubercles on the thallus and sessile lirellae.

Multiclavula ichthyiformis is a rare terricolous (ground-dwelling) basidiolichen in the family Hygrophoraceae. The lichen produces small, flesh-coloured fruit bodies with flattened, fishtail-shaped tops that grow directly from the soil surface and bear spherical spores on their undersurface. Endemic to a high-elevation bog in Costa Rica, it was discovered in 2007 during a biodiversity survey and remains known only from this single mountain location.

Herpothallon echinatum is a species of corticolous (bark-dwelling) or lignicolous (wood-dwelling), crustose lichen in the family Arthoniaceae. Originally described from specimens collected in Costa Rica, it was formally described as new to science in 2009 by the lichenologists André Aptroot, Robert Lücking, and Susan Will-Wolf. It has also been recorded from a few locations in Asia and Australasia. It contain psoromic acid as a major lichen product.

Dictyonema aeruginosulum is a species of basidiolichen in the family Hygrophoraceae. Characteristics of the lichen include its distinctive finger-like projections and blue-green hue. It is distinguishable from its closest relatives by its unique morphology and the absence of clamp connections in its structure. Dictyonema aeruginosulum is an epiphyte, forming thick mats on tree trunks within rainforest regions. The species was first identified in Costa Rica's Tenorio Volcano National Park, and it has only been recorded from this location.

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