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Hypogymnia congesta
Hypogymnia congesta is a rare species of foliose lichen in the family Parmeliaceae. Found in China, it was formally described as a new species in 2003. The lichen grows on the bark and wood of conifers and bamboo. Hypogymnia congesta has a brown to brownish-grey foliose thallus measuring up to 8 cm (3.1 in) long or broad, with a cartilage-like texture. The lichen is chemically distinct, containing physodic acid and virensic acid; the latter substance is otherwise unknown from genus Hypogymnia.
From the article Hypogymnia congesta on Wikipedia (CC BY-SA), quoted section by section
Description
The thallus of Hypogymnia congest is appressed to somewhat erect and can reach up to 8 cm (3.1 in) in width or length. It has a cartilaginous texture with variable branching patterns, and the lobes are typically 1.7–3.5 mm wide. The upper surface is smooth to weakly rugose and varies in colour from brown to brownish-grey. The lobes often have a pinched and swollen outline, with perforated tips and axils. This lichen species lacks soredia and isidia, but often has lobules. Apothecia are common, measuring up to 6 mm in diameter. The ascospores are 7.0–8.0 by 5.0–5.5 μm in size, and pycnidia are also common. Spermatia are rod-shaped to weakly bifusiform, with dimensions of 5.0–6.0 by 0.8–1.1 μm.
Range & habitat
This lichen species is known to occur only in the type locality.
== References ==
Wikipedia: “Habitat and distribution”
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
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In the stacks
Searching the stacks…
Every page naming Hypogymnia congesta in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 1230669.