Pseudoplectania

Pseudoplectania
Pseudoplectania nigrella
Scientific classification
Kingdom: Fungi
Phylum: Ascomycota
Subphylum: Pezizomycotina
Class: Pezizomycetes
Order: Pezizales
Family: Sarcosomataceae
Genus: Pseudoplectania
Fuckel
Type species
Pseudoplectania nigrella
(Pers.) Fuckel
Species

Pseudoplectania melaena
Pseudoplectania nigrella
Pseudoplectania sphagnophila
Pseudoplectania vogesiaca

Synonyms[1]

Melascypha Boud. 1885

Pseudoplectania is a genus of fungi in the family Sarcosomataceae. According to the Dictionary of the Fungi (10th edition, 2008), the genus contains three or four species, found in Europe and North America.[2]

Contents

Taxonomy

The genus was first described by the German botanist Fuckel in 1870, who originally included the two species P. nigrella and P. fulgens.[3] The latter species was removed from the genus by Pier Andrea Saccardo in 1889, and made the type species of his newly created genus Otidella (now considered synonymous with Caloscypha as described by Boudier in 1885;[4] P. fulgens is now Caloscypha fulgens). Saccardo added the species P. melania and P. stygia, the latter of which is thought to be synonymous with P. nigrella.[5]

Phylogenetic analysis based on the DNA sequences of ribosomal RNA suggests that Pseudoplectania groups in a clade together with Galiella, Plectania, Urnula, Sarcosoma, and Donadinia, and that it is most closely related to the latter genus. Pseudoplectania differs from Plectania mainly in spore shape—spherical in Pseudoplectania compared to ellipsoidal in Plectania.[6]

The generic name means false plectania.

Description

The fruit bodies of Plectania fungi grow either in groups or scattered apart, with stems or without (sessile), and are large and fleshy. They are covered on the external surfaces with short, slender, flexuous (bendy) and often coiled or twisted hairs that sometimes give the exterior of the cup a tomentose appearance—covered with dense, matted hairs. The spore-bearing cells, the asci, range in shape from cylindrical to club-shaped, and they are eight-spored. The spores are perfectly spherical, smooth, and hyaline (translucent). The paraphyses may be either straight or curved.[5]

Species

Pseudoplectania nigrella, the type species, has a worldwide distribution. Among its common names are the "hairy black cup".[7]

Pseudoplectania sphagnophila resembles P. nigrella but has a more deeply and persistently cup-shaped fruit body, a short but distinct stem, and grows solely amongst sphagnum moss.[8]

Pseudoplectania vogesiaca has fruit bodies with long stems, and is covered with a thin layer of straight or slightly flexuous hairs.[5]

References

  1. ^ "Pseudoplectania Fuckel 1870". MycoBank. The International Mycological Association. http://www.mycobank.org/MycoTaxo.aspx?Link=T&Rec=4479. Retrieved 2010-06-30. 
  2. ^ Kirk PM, Cannon PF, Minter DW, Stalpers JA. (2008). Dictionary of the Fungi (10th ed.). Wallingford: CABI. p. 572. ISBN 9780851998268. 
  3. ^ Fuckel L. (1870). "Symbolae mycologicae. Beiträge zur Kenntnis der rheinischen Pilze" (in German). Jahrbücher des Nassauischen Vereins für Naturkunde 23–24: 324. 
  4. ^ "Otidella Sacc. 1889". MycoBank. International Mycological Association. http://www.mycobank.org/MycoTaxo.aspx?Link=T&Rec=3655. Retrieved 2010-06-30. 
  5. ^ a b c Seaver FJ. (1913). "The genus Pseudoplectania". Mycologia 5 (6): 299–302. doi:10.2307/3753586. JSTOR 3753586. 
  6. ^ Harrington FA, Pfister DH, Potter D, Donoghue MJ. (1999). "Phylogenetic studies within the Pezizales. I. 18S rRNA sequence data and classification". Mycologia 91 (1): 41–50. doi:10.2307/3761192. JSTOR 3761192. 
  7. ^ Sundberg W, Bessette A. (1987). Mushrooms: A Quick Reference Guide to Mushrooms of North America (Macmillan Field Guides). New York: Collier Books. p. 4. ISBN 0-02-063690-3. 
  8. ^ Dennis RWG. (1969). "Two new British Discomycetes with smooth spherical ascospore". Kew Bulletin (Royal Botanic Gardens, Kew) 23 (3): 479–81. doi:10.2307/4117192. JSTOR 4117192. 

External links