Yellow-tipped Coral
Ramaria formosa
Also called salmon coral, beautiful clavaria, handsome club coral
A large branched coral fungus with salmon to apricot-pink branches tipped in clear yellow, growing from woodland soil. Its flesh typically discolours brownish where bruised or cut.
Overview
Yellow-tipped Coral is one of the more colourful members of Ramaria, a genus of branched, spore-covered fungi in the family Gomphaceae. Mature clusters can be 10-20 cm tall and equally wide, forming a dense thicket of upright, repeatedly forking branches that rise from a short, pale, fleshy base.
The species is best known for its colour gradient: the main branches are salmon, apricot or pinkish-buff and the fine terminal branchlets are a clear lemon to chrome yellow. That contrast is strongest in young, freshly emerged specimens and washes out to dull ochre as the fruiting body ages or dries.
Ramaria is a taxonomically demanding genus, with many species separated only by spore ornamentation, chemical reactions and host association. Within the group R. formosa sits among the medium to large soil-dwelling corals of broadleaf woodland, distinguished from its relatives by the pink-and-yellow colour scheme and by flesh that stains on handling.
How to identify it
Fruiting body
A bushy, upright, densely branched mass 8-20 cm tall and up to 20 cm across, growing singly or in arcs and rings. The overall outline is broadly egg-shaped to fan-shaped, with branch tips forming an even, slightly convex upper surface.
Branches and tips
The short basal trunk is whitish to pale pink and soon divides into several thick limbs. Branches are salmon-pink, apricot or pale coral, smooth, cylindrical and forked repeatedly with U-shaped axils. The final branchlets are short and end in two or three blunt points that are distinctly yellow, giving the cluster a lit-from-above appearance. Colour fades in age toward ochre and tan.
Flesh and spore print
Flesh is whitish and brittle, and cut or bruised surfaces typically turn brownish to vinaceous-brown after some minutes, an important field character in this genus. The spore print is pale yellow to ochre, and the spores are elongated with a finely warted to striate surface.
Where and when it grows
This coral fruits from soil and deep leaf litter in mature broadleaf woodland, most often under beech but also under oak, hornbeam and other hardwoods, and it favours moist, humus-rich ground on slopes and along banks. Fruiting bodies often appear in loose troops, arcs or partial rings marking the spread of the underground mycelium.
The season runs from late summer into autumn, peaking after prolonged wet weather. The species is widespread in Europe and reported from temperate Asia and North America, although several similar North American corals passing under this name are now understood to represent distinct species.
Ecological role
Yellow-tipped Coral is ectomycorrhizal, forming a nutrient-exchange partnership with the fine roots of broadleaf trees. The fungal mantle and the hyphal network radiating from it dramatically extend the root system's reach for water and mineral nutrients, while the tree supplies photosynthetic carbon.
Because the fungus depends on living hosts, it is an indicator of established, undisturbed woodland and disappears where soils are heavily compacted or enriched. Fruiting bodies release spores from every exposed branch surface over a period of days, and decaying clusters are colonised by fly larvae and litter arthropods that further disperse spores.
Similar species
Ramaria aurea is uniformly golden to egg-yellow throughout, without a salmon or pink tone in the branches. Ramaria flava is sulphur-yellow with paler lemon tips and a thick white trunk, and its white flesh reddens then browns strongly when handled. Ramaria botrytis reverses the colour pattern, with a bulky white trunk, cream branches and pink rather than yellow tips.
Ramaria stricta is smaller, pale tan to ochre with strictly vertical, parallel branches, and grows from wood or buried woody debris rather than from bare soil. All white-tipped, white-spored corals belong to Clavulina or Ramariopsis and are much smaller and more slender.