Bryoparasitic Pezizales

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Lamprospora arvensis (Velen.) Svrček
Acta Mus. Nat. Pragae 32 B: 126 (1976)

Basionym: Barlaea arvensis Velen. Monographia Discomycetum Bohemiae, Pragae: 323 (1934)

Lamprospora arvensis, apothecia between shoots of Ceratodon purpureus Lamprospora arvensis, spores stained with cotton-blue
1: Lamprospora arvensis, apothecia between shoots of Ceratodon purpureus, Germany, Thuringia, leg. Günter Eckstein, 2015-12-05 2: Lamprospora arvensis, spores stained with cotton-blue, Germany, Thuringia, leg. Günter Eckstein, 2015-12-05
Apothecia: 2-4 mm in diameter, with prominent menbranaceous margin, hymenium orange
Asci: 250-295(-315) x 19-25(-27) µm, 8-spored, spores uniseriate
Ascospores: globose, (16-)18-20(-22) µm (inclusive ornamentation), ornamentation consisting of ridges (0.3-)0.8-3(-4) µm wide and 0.5-1.5(-2.5) µm high, forming a reticulum with 3-5 irregular sized meshes/diameter, sometimes the reticulum is more regular.
Host: Ceratodon purpureus
Distribution: Canary Islands, Czech Republic, Denmark, France, Germany (SH, TH), Norway, Portugal, Scotland, Spain, The Netherlands
Note: Similar to Lamprospora pseudoarvensis but differs from that species in apothecia with an higher, more conspicuous margin, smaller ascospores with an more irregular reticulum as well as the host. Older reports may actually repesent L. pseudoravensis and have to be checked.


References:
  • Benkert, D. 1987a. Beiträge zur Taxonomie der Gattung Lamprospora (Pezizales). - Zeitschrift für Mykologie 53: 195-271.
  • Brouwer, E. 1999. Mosschijfjes (Lamprospora en Octospora): voorkomen en verspeiding in Nederland. - Coolia 42: 2-20.
  • Caillet, M. & Moyne, G. 1980. Contribution a l'étude du genre Octospora Hedw. ex S.F. Gray emend. Le Gal. especes a spores ornementées, globuleuses ou subglobuleuses. - Bulletin de la Société Mycologique de France 96: 175-211.
  • 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.
  • De La Torre, M. 1975. Estudio sobre Discomycetes operculados: clave y gerneros nuevos para la flora Espanola peninsular. - Anal. Inst. Bot. Cavanilles 32: 85-101. [ut L. areolata]
  • Kristiansen, R. 2006. Miniatyrbegersopper nye for Norge. - Agarica 26: 69-77.
  • Rubio, E., Suárez, A. & Miranda, M. A. 2002. Estudios preliminares sobre los generos Lamporspora de Natais y Ramsbottomia W. D. Buckley (Ascomycetes, Pezizales) en Asturias. - Bol. Soc. Micol. Madrid 26: 61-82. [repesent at least partly L. pseudoarvensis
  • Svrček, M. 1979. A taxonomic revision of Velenovsky's types of operculate discomycetes (Pezizales) preserved in National Museum, Prague. - Sborník Národního Muzea v Praze 32B: 115-194.
  • Vega, M., Richter, T. & Schubert, H. 2013. Zur Kenntnis von Lamprospora arvensis (Velen.) Svrček in Europa. - Zeitschrift für Mykologie 79: 497-510.
  • Wang, Y. Z. & Kimbrough, J. W. 1992. Monographic studies of North American species of Octospora previously ascribed to Lamprospora (Pezizales, Ascomycetes). - Special Publication no. 4, National Museum of Natural Science (Taiwan). PDF
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