Leucocoprinus viridiflavus

Last updated

Leucocoprinus viridiflavus
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Agaricales
Family: Agaricaceae
Genus: Leucocoprinus
Species:
L. viridiflavus
Binomial name
Leucocoprinus viridiflavus
(Petch) E.Ludw. (2012)
Synonyms

Lepiota viridiflava Petch (1917)
Leucoagaricus viridiflavus T.K.A.Kumar & Manim. (2009)

Contents

Leucocoprinus viridiflavus
Information icon.svg
Gills icon.png Gills on hymenium
Convex cap icon.svgUmbonate cap icon.svg Cap is convex or umbonate
Free gills icon2.svg Hymenium is free
Ring stipe icon.svg Stipe has a ring
Saprotrophic fungus.svgEcology is saprotrophic
Mycomorphbox Question.pngEdibility is unknown

Leucocoprinus viridiflavus is a species of mushroom producing fungus in the family Agaricaceae. [1] [2] It may also be known as Leucoagaricus viridiflavus.

Taxonomy

It was first described in 1917 by the English mycologist Thomas Petch who classified it was Lepiota viridiflava. [3]

In 2009 it was reclassified as Leucoagaricus viridiflavus by T.K. Arun Kumar and Patinjareveettil Manimohan [4] and then reclassified again in 2012 as Leucocoprinus viridiflavus by Erhard Ludwig. [5]

Description

Leucocoprinus viridiflavus is a small dapperling mushroom with thin yellow flesh (up to 4mm thick at the central disc) that discolours olive or green when damaged or cut. [3]

Petch described Lepiota viridiflava as follows:

Cap: Up to 2.5 cm wide, umbonate and almost planar when expanded. The surface colour is greenish-yellow or sulphur-yellow and is coated in thin dark green patches and specks which may appear sticky when moist or shiny when dry. The central disc or umbo is a darker green than the rest of the surface. As opposed to most Leucocoprinus species which display striations at the cap edges this species is said to have an appendiculate margin, with pieces of the partial veil hanging from the cap edges. Stem: 2.5–3 cm tall and 3mm thick tapering upwards from a slightly wider base. The surface is greenish-yellow or sulphur-yellow similar to the cap and is fibrillose with dark green fibers towards the base. The interior is hollow with white fibers and yellow flesh. Gills: Free, crowded and likewise greenish-yellow or sulphur-yellow with green bruising. Spores: Ovoid and pale yellow. 5-8 x 3-4 μm. [3]

The 2009 description of Leucoagaricus viridiflavus is similar but expands on these details:

Cap: 1.1-2.9 cm wide, conical or convex when young expanding to convex or applanate when mature. Broadly umbonate with a pastel yellow surface that is smooth or rarely has minute fibrils which are olive or the same colour as the cap surface. All parts discolour to olive and finally dark grey with bruising. The cap edges do not have striations and are incurved when young, becoming straight with age sometimes with veil fragments present. Stem: 4–7 cm tall and 2-4mm thick with a slightly bulbous base that is up to 6mm wide from which the stem may taper up from slightly or be otherwise equal in width across the length. The surface is pastel yellow and smooth but with fibers towards the base whilst the interior is solid at first but hollowing with age. The membranous stem ring is located towards the top of the step (superior) but may disappear. Gills: Free, crowded or moderately crowded and up to 4mm wide. Pastel yellow to greenish yellow with some fringing on the edges that is more noticeable with age and when viewed with a lens. Smell: Not distinctive. Spores: Ellipsoid to subamygdaliform with a germ pore that is not easily distinguished. Dextrinoid. 5.5-8.5 x 4-5 μm. [4]

Habitat and distribution

Leucocoprinus viridiflavus is scarcely recorded and little known. The specimens described by Petch were found on the ground in flower beds in Peradeniya, Sri Lanka [3] whilst the specimens described by Kumar and Manimohan were found in Kerala state, India where they were scattered or solitary on soil amongst decaying Acacia leaves. It was noted as appearing regularly around the Calicut University campus immediately after heavy rains during dry periods. [4]

Similar species

There are a small number of similarly green bruising greenish-yellow species including Leucoagaricus sulphurellus , Leucocoprinus viridiflavoides, Leucoagaricus viriditinctus, Lepiota cyanescens and Leucoagaricus houaynhangensis . [6] The genera in which they should be placed is not necessarily certain and some of these species may still be known under previous classifications within Lepiota , Leucocoprinus or Leucoagaricus or may be subject to reclassification as some of these species are poorly documented and all are scarcely observed. As the macroscopic characteristics of these species are similar and unusual within these genera it may take microscopic analysis to distinguish them.

Related Research Articles

<i>Leucocoprinus cepistipes</i> Species of fungus

Leucocoprinus cepistipes, is a species of fungus in the family Agaricaceae. It is typically found on wood debris, such as wood chips but may also grow in potted plants or greenhouses. Typical characteristics include a fine-scaled bell-shaped cap, a partial veil, and a tendency to bruise a yellow to brown when handled.

<i>Leucocoprinus fragilissimus</i> Species of fungus

Leucocoprinus fragilissimus, commonly known as the fragile dapperling, is a species of gilled mushroom in the family Agaricaceae.

<i>Leucocoprinus cretaceus</i> Species of fungus

Leucocoprinus cretaceus is a species of mushroom producing fungus in the family Agaricaceae. It is likely tropical in origin although it was first documented in Europe where it was often found growing in greenhouses and bark beds. However many early observations conflate this species with Leucocoprinus birnbaumii or Leucocoprinus cepistipes despite sharing only some superficial similarities. This fungus is quite versatile even for a saprotroph and is often found growing in clusters on woodchips, sawdust and compost heaps as well as directly from the ground or on trees. It may also appear in plant pots and greenhouses in colder countries in which it is not well equipped to survive outside.

<i>Leucoagaricus meleagris</i> Species of fungus

Leucoagaricus meleagris is a species of fungus in the family Agaricaceae.

Leucocoprinus biornatus is a species of mushroom producing fungus in the family Agaricaceae.

Leucocoprinus acutoumbonatus is a species of mushroom producing fungus in the family Agaricaceae.

Leucocoprinus holospilotus is a species of mushroom producing fungus in the family Agaricaceae.

Leucocoprinus delicatulus is a species of mushroom producing fungus in the family Agaricaceae.

Leucocoprinus munnarensis is a species of mushroom producing fungus in the family Agaricaceae.

Leucocoprinus pusillus is a species of mushroom producing fungus in the family Agaricaceae.

Leucocoprinus heinemannii is a species of mushroom producing fungus in the family Agaricaceae.

Leucocoprinus tenellus is a species of mushroom producing fungus in the family Agaricaceae.

Leucocoprinus magnusianus is a species of mushroom producing fungus in the family Agaricaceae.

Leucocoprinus viridiflavoides is a species of mushroom producing fungus in the family Agaricaceae. It may still be known as Leucoagaricus viridiflavoides.

Leucocoprinus truncatus is a species of mushroom-producing fungus in the family Agaricaceae.

<i>Leucoagaricus lacrymans</i> Species of fungus

Leucoagaricus lacrymans is a species of mushroom producing fungus in the family Agaricaceae.

Leucocoprinus antillarum is a species of mushroom producing fungus in the family Agaricaceae.

Leucoagaricus flavus is a species of mushroom-producing fungus in the family Agaricaceae.

Leucoagaricus griseosquamosus is a species of mushroom-producing fungus in the family Agaricaceae.

<i>Leucoagaricus croceovelutinus</i> Species of fungus

Leucoagaricus croceovelutinus is a species of mushroom-producing fungus in the family Agaricaceae.

References

  1. ↑ "Species fungorum - Leucocoprinus viridiflavus (Petch) E. Ludw., Pilzkompendium (Eching) 3: 554 (2012)". www.speciesfungorum.org. Retrieved 2022-07-19.
  2. ↑ "Mycobank Database - Leucoagaricus viridiflavus".
  3. 1 2 3 4 Petch, T. (1915–1917). "Additions to Ceylon Fungi". Annals of the Royal Botanic Gardens, Peradeniya: 195–196 – via www.biodiversitylibrary.org.
  4. 1 2 3 Arun Kumar, T. K.; Manimohan, P. (2009-07-16). "The genera Leucoagaricus and Leucocoprinus (Agaricales, Basidiomycota) in Kerala State, India". Mycotaxon. 108 (1): 385–428. doi: 10.5248/108.385 . ISSN   0093-4666.
  5. ↑ Erhard Ludwig (2012). Pilzkompendium Bd. 3. Die übrigen Gattungen der Agaricales mit weißem Sporenpulver [...] Beschreibungen. Eching. ISBN   978-3-940316-03-5. OCLC   816137686.{{cite book}}: CS1 maint: location missing publisher (link)
  6. ↑ "Mycotaxon 76: 39, 2000". www.cybertruffle.org.uk. Retrieved 2022-10-12.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.