Bryoparasitic Pezizales

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Octospora excipulata (Clem.) Benkert

Basionym: Leucopezis excipulata Clem.

Synonyms: show
Octospora excipulata, Apothecia Octospora excipulata, Asci with Spores
1: Apothecia with Funaria hygrometrica 2: Asci with Spores
Apothecia: (0,5)1 - 4(5,5) mm, yellow, pale orange to orange, margin fringed to membranaceous, growing on soil
Asci: cylindrical, 8-spored, spores uniseriate
Spores: ellipsoid sometimes on one side fusiform, (17)19-27(30) x (12)13-17(18) µm, thick-walled, smooth, with one large oil droplet
Host: Funaria hygrometrica, very rarely Aphanorrhegma patens and Physcomitrium sphaericum
Infectious structures: infects the stem and leaf cells, not the rhizoids
Habitat: open, disturbed ground, especially on burned ground and on potting soil in greenhouses and garden cerntres
Distribution: common in Germany (BB, BE, BW, BY, HH, MV, NI, NW, SA, ST, TH) also known from Canary Island, Czech Repuplic, France, Greece, Montenegro, Spain, United Kingdom, United States
Notes: The spores are very variable in size and the thick wall is only present in fully mature spores.

 

References:
  • Benkert, D. 1995. Becherlinge als Moosparasiten. - Boletus 19: 97-127.
  • Benkert, D. 2007. Zur Kenntnis des Vorkommens bryophiler Pezizales (Ascomycota) in Südost-Europa. - Mycologia Montenegrina 10: 7-21.
  • Benkert, D. 2009. Zwei neue Arten bryophiler Pezizales (Ascomycota) aus der Bundesrepublik Deutschland und Auflistung der aus Deutschland bisher nachgewiesenen Arten mit Kurzdiagnostik. - Zeitschrift für Mykologie 75: 51-68.
  • Brouwer, E. 1999. Mosschijfjes (Lamprospora en Octospora): voorkomen en verspeiding in Nederland. - Coolia 42: 2-20.
  • Caillet, M. & Moyne, G. 1987a. Contribution a l'étude du genre Octospora Hedw. ex S.F. Gray (Pezizales), Espèces à spores elliptiques ou fusiformes. - Bulletin de la Société Mycologique de France 103: 179-226.
  • Caillet, M. & Moyne, G. 1991. Clé de détermination du genre Octospora et des genres voisins. - Bulletin de la Société d'Histoire Naturelle du Doubs 84: 9-24. [ut Octospora roxheimii]
  • Dennis, R. W. G. & Itzerott, H. 1973. Octospora and Inermisia in Western Europe. - Kew Bulletin 28: 5-23.
  • Döbbeler, P. 1993. The infecting structures of Octospora rhoxheimii (Pezizales). - Arnoldia 6: 12-14.
  • Eckstein, J. & Eckstein, G. 2009. Bryoparasitische Pezizales (Ascomycetes) der Gattungen Lamprospora, Octospora und Neottiella im Alten Botanischen Garten von Göttingen. - Herzogia 22: 213-228. PDF (abstract only)
  • Eckstein, J. & Eckstein, G. 2013. Bemerkenswerte Funde bryoparasitischer Pezizales (Ascomycota) aus Deutschland. - Boletus 34: 55-66.
  • Engel, H. & Hanff, B. 1985. In Nordwestoberfranken gefundene Arten der Gattung Octospora Hedwig ex S. F. Gray. - Die Pilzflora Nordwestoberfrankens 9/A: 3-20.
  • Itzerott, H. 1981. Die Gattung Octospora mit besonderer Berücksichtigung der Pfälzer Arten. - Nova Hedwigia 34: 265-280. [ut Octospora roxheimii]
  • Peric, B. 2002. Trois Discomycetes, nouvelles de la flore mycologique du Montenegro. - Mycologia Montenegrina 5: 93-118.
  • Rodríguez, N. S. 2009. Peziza moseri, Peziza bovina, Peziza gerardii, Octospora roxheimii, Geopyxis carbonaria y Geopyxix majalis, seis ascomycetes primaverales recoltados en la Sierra de Neila (Burgos). - Errotari 6: 73-90. [ut Octospora roxheimii]
  • Rubio, E., Suárez, A. & Miranda, M. A. 2000. El genero Octospora Hedw.:S.F. Gray (Ascomycetes, Pezizales) en Asturias y Leon. - Bol. Soc. Micol. Madrid 25: 111-126.
  • Yao, Y. J. & Spooner, B. M. 1996b. Notes on British species of Octospora. - Mycological Research 100: 175-178.
Images
Octospora excipulata, Apothecium with Funaria hygrometrica Octospora excipulata, ascospores
3: Apothecium with Funaria hygrometrica 4: Octospora excipulata, ascospores
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