Peltigera hydrothyria
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Peltigera hydrothyria, commonly known as the waterfan, is a relatively rare aquatic lichen in the family Peltigeraceae, native to North America. It grows in cold, clean mountain streams, where it atta
Hydrothyria venosa Flickr pellaea
Peltigera gowardii 1842640
Type specimen (Reliqu. Tuckerman. no 51 sample in AK) of Hydrothyria venosa collected by John Lewis Russell in 1851 from Wantastiquet Mountain, Vermont.
Growing on a submerged rock in a shaded stream in the Great Smoky Mountains, Tennessee. The gelatinous, black thallus is characteristic of its aquatic habitat.
Dermatocarpon
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Dermatocarpon is a genus of lichens in the family Verrucariaceae. Members of the genus are commonly called stippleback lichens because they have fruiting structures called perithecia that are flask-sh
Peltigera hydrothyria
…rivale often grows in looser clumps at the edges of larger watercourses. Other aquatic lichens, such as those in the genera Verrucaria, Hymenelia, and Dermatocarpon, differ from P. hydrothyria. Its foliose growth form, corticated surface, distinct venation, and symbiosis with cyanobacteria distinguish it from these…
Dermatocarpon miniatum Jymm
Dermatocarpon luridum
Dermatocarpon americanum