Sunken bloodspot lichen (Haematomma persoonii ... Sunken bloodspot lichen (Haematomma persoonii) with other crustose lichens on a recently fallen oak on Stubblefield ... 6 in Sam Houston National Forest. Texas, December 26, 2020On a recently fallen oak tree along the Stubblefield section of the Lone Star hiking trail north of Trailhead No. 6 in Sam Houston National Forest, Texas, various crustose lichens can be seen growing, including the sunken bloodspot lichen (Haematomma persoonii). This was captured on camera on December 26, 2020. – generated by AI The provided image presents a close-up view of a tree trunk, featuring a diverse array of lichens growing on its surface. The dominant crustose lichen is **Haematomma persoonii**, characterized by its reddish-brown apothecia (the fruiting bodies) that are sunken into the thallus (the vegetative part). These apothecia resemble small, circular depressions with a reddish-brown coloration. The lichens occupy most of the image's width and height, while the bark is visible between them. The surrounding lichen species are characterized by their grayish-green hue and flat growth habit. They cover much of the tree trunk, but do not appear as dominant as **Haematomma persoonii**. The base of a fallen oak tree, likely from the Quercus genus, provides the substrate for these lichens to grow. The image was captured in December 2020 on a recently fallen oak tree in Sam Houston National Forest. The location is specifically identified as Trailhead No. 6. – AI vision |
Washington-on-the-Brazos ... 2020 |
|
  |
  |
Slideshow: |
|