Ramariopsis kunzei | |
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Scientific classification ![]() | |
Kingdom: | Fungi |
Division: | Basidiomycota |
Class: | Agaricomycetes |
Order: | Agaricales |
Family: | Clavariaceae |
Genus: | Ramariopsis |
Species: | R. kunzei |
Binomial name | |
Ramariopsis kunzei | |
Synonyms [1] | |
Species synonymy
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Ramariopsis kunzei | |
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![]() | Smooth hymenium |
![]() | No distinct cap |
![]() | Hymenium attachment is irregular or not applicable |
![]() | Spore print is white |
![]() | Ecology is mycorrhizal |
![]() | Edibility is edible |
Ramariopsis kunzei is an edible species of coral fungi in the family Clavariaceae, and the type species of the genus Ramariopsis . It is commonly known as white coral because of the branched structure of the fruit bodies that resemble marine coral.
The fruit bodies are up to 5 cm (2 in) tall by 4 cm (1+1⁄2 in) wide, with numerous branches originating from a short rudimentary stem. The branches are one to two millimeters thick, smooth, and white, sometimes with yellowish tips in age.
Ramariopsis kunzei has a widespread distribution, and is found in North America, Eurasia, and Australia.
The species was first described as Clavaria kunzei by pioneer mycologist Elias Magnus Fries in 1821. [2] E. J. H. Corner transferred the species to Ramariopsis in 1950, and made it the type species. [3] In general, coral fungi often have extensive taxonomic histories, as mycologists have not agreed on the best way to classify them. In addition to Clavaria and Ramariopsis , the R. kunzei has been placed in the genera Ramaria by Lucien Quélet in 1888, and Clavulinopsis by Walter Jülich in 1985. According to the taxonomic database MycoBank, [1] the species has acquired a sizable list of synonyms, listed in the taxobox. It is commonly known as white coral because of the branched structure of the fruit bodies that resemble marine coral. [4]
A phylogenetic analysis of clavarioid fungi concluded that R. kunzei is in a phylogenetic lineage together with several Clavulinopsis species (including C. sulcata , C. helvola and C. fusiformis ), and that this clade (the ramariopsis clade) is nested within a group of species representing the family Clavariaceae. [5]
The fruit bodies are white to whitish-yellow in color, and are highly branched structures resembling coral; the dimensions are typically up to 8 cm (3.1 in) tall and 6 cm (2.4 in) wide. Older specimens may have a pinkish tinge. The tips of the branches are blunt, not crested as in some other species of coral fungi, like Clavulina cristata ; [4] branches are between 1 and 5 millimeters thick. [6] The branch tips of mature specimens may be yellow. [7] A stem, if present, may be up to 1 cm (0.4 in) long and scurfy—covered with small flakes or scales. [8] The texture of the flesh may range from pliable to brittle. [6] The odor and taste are not distinctive. [6] [9] This mushroom does not change color upon bruising or injury, [7] but a 10% solution of FeSO4 (a chemical test known as "iron salts") will turn it green. [9]
In deposit, the spores are white. Viewed with a light microscope, the spores are translucent and have an ellipsoid to roughly spherical shape with spines on the surface, and dimensions of 3–5.5 by 2.5–4.5 μm. [8] Spores are non-amyloid, meaning that they do not absorb iodine when stained with Melzer's reagent. [9] The spore-bearing cells, the basidia, are usually 25–45 μm long by 6–7 μm wide, and 4-spored. [10] Clamp connections are present in the hyphae of this species. [6]
The "crested coral" ( Clavulina cristata , edible) is similar in appearance to R. kunzei, [11] but its branches have fringed, feathery tips. The "jellied false coral" ( Tremellodendron pallidum , edible) [12] has whitish, tough, cartilaginous branches with blunt tips. [13] Ramariopsis lentofragilis (poisonous) is an eastern North American lookalike that causes severe abdominal pain, general weakness, and pain under the sternum. [12]
Also similar are Artomyces pyxidatus , Clavulina cinerea , Clavulina rugosa , and Clavulinopsis corniculata. [11]
The species is thought to be saprobic and is found growing on the ground, in duff, or less frequently on well-decayed wood. [6] Fruit bodies may grow singly, in groups, or clustered together. [10] David Arora has noted a preference for growing under conifers, as well as a prevalence in redwood forests of North America. [14] In contrast, an earlier author claimed this species grows "rarely in coniferous woods." [15]
In Europe, Ramariopsis kunzei has been collected in Scotland (specifically, on the islands of Arran, Gigha and Kintyre peninsula), [16] the Netherlands, [17] Norway, [18] former Czechoslovakia, [19] Germany, [20] Poland, [21] and Russia (Zhiguli Mountains). [22] It has also been found in China, [23] India, [24] Iran, [25] the Solomon Islands, [26] and Australia. [27] In North America, the distribution extends north to Canada, [28] and includes the United States (including Hawaii and Puerto Rico). [7] [29]
The species is edible, [4] but according to David Arora, "fleshless and flavorless". [14]