Synonyms: Caloplaca brouardii, Placodium brouardii.
Fulgogasparrea brouardii is a crustose lichen species characterized by its orange to yellow-orange thallus and white to pale yellow apothecia. In East and Central Texas, it typically grows on bark, particularly of hardwood trees such as oak and hickory, and occasionally on rock. The lichen's distribution in the region is scattered, with recorded collections from areas including the Edwards Plateau, Post Oak Savannah, and Piney Woods ecoregions. Its morphology is marked by a cracked or verruculose thallus surface and the presence of anthraquinone pigments, which contribute to its distinctive coloration.
Firedot lichen Fulgogasparrea brouardii (Caloplaca brouardii)(?) with isidia in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018
Unnamed Road, Llano, TX 78643, USA
Firedot lichen Fulgogasparrea brouardii (Caloplaca brouardii)(?) on granite stone in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018Unnamed Road, Llano, TX 78643, USA
Isidious firedot lichen Fulgogasparrea brouardii (Caloplaca brouardii)(?) together with other crustose lichens in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018Unnamed Road, Llano, TX 78643, USA
Isidious lichen Fulgogasparrea brouardii (Caloplaca brouardii)(?) on a granite stone in Enchanted Rock State Natural Area. Fredericksburg, Texas, December 25, 2018Unnamed Road, Llano, TX 78643, USAObservations of Fulgogasparrea brouardii in East and Central Texas reveal its presence on granite stones in the Enchanted Rock State Natural Area, Fredericksburg, Texas. The species exhibits isidia, which are small, finger-like outgrowths, as seen on December 25, 2018. It co-occurs with other crustose lichens in the area. Notably, Fulgogasparrea brouardii is also known as firedot lichen and has been observed with its distinctive isidia on multiple granite stones within the natural area. The species appears to thrive in this environment, suggesting a preference for the conditions found in Enchanted Rock State Natural Area. Further observations may provide more insight into its distribution and habitat preferences in East and Central Texas. The sightings were documented on the same day, indicating a localized presence of the species.
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