Lecidea laboriosa
Lecidea laboriosa is a species of lichen that grows inside solid rock (endolithic), with only the small black disc-like fruiting bodies (apothecia) visible above the rock surface.: 301 Unlike other members of the genus Lecidea, the apothecia are not lecideine in that they either lack black margins (exciples) or have gray vertically striated margins.: 301 It grows all over the world in all climates. It might be the most common endolithic lichen in California.: 301
| Lecidea laboriosa | |
|---|---|
| Lecidea laboriosa on granite | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Fungi |
| Division: | Ascomycota |
| Class: | Lecanoromycetes |
| Order: | Lecideales |
| Family: | Lecideaceae |
| Genus: | Lecidea |
| Species: | L. laboriosa |
| Binomial name | |
| Lecidea laboriosa Müll.Arg. (1874) | |
It is similar in appearance to Catillaria lenticularis, Polyspora simplex, and Sarcogyne clavus.: 301
It is negative to lichen spot tests, K−, P−, C−.: 301
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