Hirticlavula

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Hirticlavula
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Clavariaceae
Genus: Hirticlavula
J.H.Petersen & Læssøe (2014)
Species:
H. elegans
Binomial name
Hirticlavula elegans
J.H.Petersen & Læssøe (2014)
Hirticlavula
saprotrophic
Edibility is unknown

Hirticlavula is a fungal

saprotrophs. Both morphological
and ecological details are distinctive when compared to other clavarioid fungi.

Taxonomy

Hirticlavula elegans was described based on collections dating back to 1995. It was provisionally reported in 2009 in the

Phylogenetic analysis suggests that within the Clavariaceae, Hirticlavula is a sister to the clade comprising Clavaria, Camarophyllopsis and Hodophilus.[4]

Description

Clockwise from left: The fruit bodies, the hairs, the basidia and the spores.

Hirticlavula elegans produces white

micrometres (μm) in height. The robust and fertile head measures from 230 to 260 by 90 to 200 μm, while the hairy stem measures between 600 and 800 by 40 to 60 μm. The fruit bodies mostly retain their shape when dried, but do develop a cream tinge. The fruit bodies do not emerge from a sclerotium, but instead grow directly from the substrate.[5]

The

clamp connections, and the hyphal structure is monomitic, meaning that only generative hyphae are present. In the stem, the 1–2 μm-wide hyphae run parallel to one another, but are less regular towards the base.[5]

The hairs on the stem are straight and point away from the substrate, emerging from the stems at oblique angles. They are 150 to 250 μm in length; at the base, they are 1.5 to 2.5 μm in width, while at the rounded to club-shaped tips, they are 3 to 4.5 μm in width. The hairs do not branch, have moderately thick

septate. Individual cells in the hairs measure 10 to 30 μm in length.[5]

It is unknown whether the fruit bodies are edible, but they are unlikely to be of interest to mushroom hunters due to the small size.[2][3]

Similar species

Hirticlavula elegans fruit bodies are highly distinctive. The characteristic hairy stems are very different from those of any other species in the Clavariaceae. Hairy stems are seen among more distant relatives, including members of

Pistillina and Pterula. However, the hairs of H. elegans are specialised structures containing numerous cells, while the more irregular hairs on the stems of the other species are merely branched hyphae. In addition, the hairs on the H. elegans stems thicken at the furthest point from the stem, while any hairs on the stems of other known species of clavarioid fungi thin at the end.[6]

Distribution and ecology

Hirticlavula elegans is known from Denmark and Norway. The fruit bodies grow directly from the wood or, more usually, the bark of

saprotroph. The species fruits from May to October, longer than the fruiting of any other very small clavarioid fungi known to the describing authors.[7]

See also

References

  1. ^ Petersen, Davey, and Læssøe, p. 1.
  2. ^ a b c Brix, Lise (16 February 2015). "Ny svampeart opdaget i Nordjylland" [New fungal species discovered in Jutland] (in Danish). Videnskab.dk. Retrieved 19 February 2015.
  3. ^ a b "Denmark: Scientists find new 'pretty' fungus species". BBC News. 18 February 2015. Retrieved 19 February 2015.
  4. ^ Petersen, Davey, and Læssøe, p. 2.
  5. ^ a b c d Petersen, Davey, and Læssøe, p. 4.
  6. ^ Petersen, Davey, and Læssøe, p. 4, 7.
  7. ^ Petersen, Davey, and Læssøe, p. 7.

Cited texts

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