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Agyrium atrovirens
Tremella exigua is a species of fungus in the family Tremellaceae. It produces small, dark, pustular, gelatinous basidiocarps (fruit bodies) and is parasitic on pyrenomycetous fungi (Diaporthe and Cucurbitaria species) on dead branches of trees and shrubs. It was originally described from France.
From the article Tremella exigua on Wikipedia (CC BY-SA), quoted section by section
Description
Fruit bodies are gelatinous, olive-black, up to 8 mm across, pustular at first, sometimes becoming cerebriform (brain-like). Microscopically, the hyphae have clamp connections and the basidia are tremelloid (globose to clavate, with oblique septa), 4-celled, 18 to 36 by 8 to 15 μm. Basidiospores are globose to subglobose 7 to 10 by 6.5 to 10 μm in diameter.
Range & habitat
Tremella exigua is a parasite on lignicolous pyrenomycetes, including species of Diaporthe and Cucurbitaria. Though originally described from ash, the species is more commonly found on dead branches of gorse (Ulex europaeus), broom (Cytisus scoparius), and barberry (Berberis vulgaris). The species was originally described from France and has been widely recorded in Europe. Tremella exigua has also been reported from Canada and Ecuador.
== 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
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Every page naming Agyrium atrovirens 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 174690.