Leucocoprinus russoceps explained

Leucocoprinus russoceps is a species of mushroom producing fungus in the family Agaricaceae.[1] [2]

Taxonomy

It was described in 1871 by the English botanists and mycologists Miles Joseph Berkeley and Christopher Edmund Broome who classified it as Agaricus (Lepiota) russoceps.[3]

In 1887 it was reclassified as Lepiota russoceps by the Italian mycologist Pier Andrea Saccardo[4] and then as Mastocephalus russoceps in 1891 by the German botanist Otto Kunze,[5] however Kunze's Mastocephalus genus, along with most of 'Revisio generum plantarum was not widely accepted by the scientific community of the age so it remained a Lepiota.

In 1987 it was reclassified as Leucocoprinus russoceps by the mycologist Jörg Raithelhuber.[6]

Description

Leucocoprinus russoceps is a small dapperling mushroom.

Cap: 1.5-2.5cm wide starting campanulate before flattening and expanding to convex. The surface is yellow-brown to ochre with a pulverulent, powdery coating and striations from the edges. Gills: Pale, 'almost free' and close. Stem: 4cm long and 1.5mm thick at the top with a claviform taper to 4mm wide at the base. The surface is paler than the cap sometimes with a slight greenish tint with age whilst the interior is stuffed with white flesh. The stem ring may disappear. Spores: Smooth, ovate to elliptic with a faint germ pore. 7.2-9 x 4.2-4.6 μm.

Habitat and distribution

The specimens were found growing on the ground in forests in Brazil.

The specimens studied by Berk and Broome were found on the ground in June 1860 in Ceylon (now Sri Lanka).

Notes and References

  1. Web site: Species fungorum - Leucocoprinus russoceps (Berk. & Broome) Raithelh., Metrodiana 15(2): 37 (1987) . 2022-07-19 . www.speciesfungorum.org.
  2. Web site: Mycobank Database - Leucocoprinus russoceps .
  3. Berkeley . M. J. . Broome . C. E. . 1871 . On the Fungi of Ceylon . The Journal of the Linnean Society. Botany . London : the Society . Longman, Green, Longman, Roberts & Green . 11 . 508.
  4. Book: Saccardo, P. A. . Sylloge fungorum omnium hucusque cognitorum . Traverso . G. B. . Trotter . A. . 1887 . sumptibus auctoris . 5 . Patavii . 63 . Agaricineae, Leucosporse, Lepiota.
  5. Book: Kuntze, Otto . Revisio generum plantarum:vascularium omnium atque cellularium multarum secundum leges nomenclaturae internationales cum enumeratione plantarum exoticarum in itinere mundi collectarum ... . 1891 . A. Felix [etc.] . 2 . Leipzig . 860.
  6. Die Gattung Leucocoprinus in Den A B C - Staaten . Metrodiana . 10 August 1987 . 15 . 2 . 37.