SafePlants

Spike Lichen: A Botanical Overview

The term "Spike Lichen" is used as a common name for several species within the Calicium genus. This overview compiles information from various sources to provide a general understanding of these fascinating organisms.

Taxonomy and Nomenclature

• Scientific Name: Several species are referred to as Spike Lichen, including Calicium hyperelloides, Calicium abietinum, Calicium salicinum, Calicium glaucellum, Calicium chlorosporum, Calicium corynellum, Calicium adaequatum, Calicium adspersum, Calicium parvum, and Calicium trabinellum, Calicium viride.
• Common Name: Spike Lichen
• Synonym: Calicium roscidum is listed as a synonym for one of the Spike Lichen species.
• Kingdom: Fungi (Lichens are a symbiotic relationship between a fungus and an algae or cyanobacteria.)
• Family: Caliciaceae
• Group: Lichen

Considerations for Pets

• One mention describes lichens that were "gray with tiny spikes on". These may pose a risk to animals that are prone to ingesting plant matter.

Distribution and Habitat

• The Spike Lichen (Calicium abietinum) is noted as rare in the Balkan Peninsula.
• They can be found in various habitats, including pine forests.
• Spike Lichens are found on walls, headstones, flat tomb lids, and old buildings in undisturbed habitats.

Morphological Characteristics

• One description mentions "tiny spikes" on gray lichens.

Ecological Role and Interactions

• Lichens, in general, prefer undisturbed habitats.
• They can grow on various surfaces, including tree trunks, rocks, and buildings.

Quirky Facts

• One source refers to "Paleface stubble" as a common name, however it is unclear if it is referring to the same species as Spike Lichen.

Further Information

• Catalogue of Life: 2012 Annual Checklist
• Lichen Flora of the Greater Sonoran Desert Region
• USDA resources