Bryoparasitic Pezizales

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Lamprospora tuberculata Seaver
Mycologia 4: 47 (1912)
Mycobank: MB#200496
Holotype: U.S.A.: New York, on soil near Yonkers, leg. F. J. Seaver 1911-Jul-21 (NYBG-00915360)

Lamprospora tuberculata, apothecia with Pleuridium subulatum Lamprospora tuberculata, spores in water (left) and spores stained with lactophenol-cotton-blue (right)
1: Lamprospora tuberculata, apothecia with Pleuridium subulatum 2: Lamprospora tuberculata, spores in water (left) and spores stained with lactophenol-cotton-blue (right)
Apothecia: 1-2 mm in diameter with broad membranaceous margin, hymenium orange
Asci: 320-375 x 20-25 µm, 8-spored, spores uniseriate
Ascospores: globose, inclusive ornamentation (13-)15-18(-20) µm in diameter, ornamentation consisting of rounded warts and tubercles of very uneven sizes, large ones (2-)3-6(-8) µm broad, small ones 1-2 µm broad
Host: Pleuridium acuminatumPleuridium subulatum
Habitat: on soil
Distribution: Australia, Austria, Czech Republic, France, Germany (rare, BW, BY, BB, NI), The Netherlands, Norway, Slovakia, Spain, Switzerland, United States
Note: Vega et al. 2021b: 'Contrary to reports by Benkert (1987) and Wang & Kimbrough (1992) we observed Pleuridium subulatum as the host. Astonishingly, a few plants have large irregular shaped rhizoidal tubers which had not been reported for P. subulatum in North America but are known from Scandinavia (Jensen 1939; Hallingback 2006). Our spore measurements are 15-17 µm diam. with larger tubercles 2-4 µm wide and up to 2.5 µm high. Whereas the host is the same in North American and European collections, there are differences in the spore ornamentation. The tubercles in Seaver's samples are more hemispherical and not so irregularly shaped as in European collections examined in this study or in those documented in Eckstein et al. (2014) and Egertova et al. (2015). Furthermore, one of the collections presented here as L. tuberculata agg. (ZT Myc 61081) and the collection in Egertova et al. (2015) induce large galls (60-125 µm in case of ZT Myc 61081) on the rhizoids of the bryophyte host while no galls could be found in the United States material. New collections of L. tuberculata from Northern America are needed for DNA analysis to resolve the question whether United States and European collections of L. tuberculata represent the same taxon.'

References:
  • Benkert, D. 1987a. Beiträge zur Taxonomie der Gattung Lamprospora (Pezizales). - Zeitschrift für Mykologie 53: 195-271.
  • 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.
  • Benkert, D. & Brouwer, E. 2004. New species of Octospora and some further remarkable bryoparasitic Pezizales from the Netherlands. - Persoonia 18: 381-391.
  • 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.
  • Eckstein, J., Eckstein, G. & Vega, M. 2014. Bemerkenswerte Funde bryoparasitischer Pezizales (Ascomycota) aus Deutschland II. - Boletus 35: 17-25. abstract
  • Egertova, Z., Eckstein, J. & Vega, M. 2015. Lamprospora tuberculata, Octospora ithacaensis, O. orthotrichi and O. affinis - four bryoparasitic ascomycetes new to the Czech Republic. - Czech Mycology 67 (2): 119-133. PDF from Czech Mycology
  • Engel, H. 1984. Lamprospora tuberculata Seaver erstmals in Deutschland nachgewiesen. - Beiträge zur Kenntnis der Pilze Mitteleuropas 1: 179-182.
  • Engel, H. & Hanff, B. 1987. In Nordwestoberfranken und seinen angrenzenden Gebieten (Unterfranken) gefundene Arten der Gattungen Lamprospora De Notaris und Ramsbottomia W. D. Buckley emend. D. Benkert u. T. Schumacher. - Die Pilzflora Nordwestoberfrankens 11/A: 3-31.
  • Khare, K. B. 1976. Some Lamprospora species from India. - Norwegian Journal of Botany 23: 1-5.
  • Kristiansen, R. 2006. Miniatyrbegersopper nye for Norge. - Agarica 26: 69-77.
  • McLennan, E. & Cookson, I. 1923. Additions to the Australian ascomycetes. I. - Proceedings of the Royal Society of Victoria New Series 35: 153-158, plates 9-10.
  • McLennan, E. & Cookson, I. 1926. Additions to the Australian ascomycetes, II. - Proceedings of the Royal Society of Victoria New Series 38: 69-76, plate IV-VI.
  • Moser, M. 1963. Notizen zu einigen interessanten Discomyceten. - Berichte des Naturwissenschaftlichen-Medizinischen Vereins Innsbruck 53: 139-141. [the specimen of L. tuberculata was later revised by Benkert (1994c) as L. rehmii]
  • Ribollet, P. 2016. Contribution à la connaissance des genres Octospora Hedw. 1789 et Lamprospora De Not. 1864 en Loire-Atlantique, Seconde partie: le genre Lamprospora De Not. 1864. - Cahiers Mycologiques Nantais 28: 7-13. PDF
  • Rifai, M. A. 1968. The Australian Pezizales in the Herbarium of the Royal Botanic Gardens, Kew. - Verhandelingen der Koninklijke Nederlandse Akademie van Wetenschappen Afdeling Natuurkunde Tweede Reeks 57 (3): 1-295.
  • Seaver, F. J. 1912. The genus Lamprospora, with descriptions of two new species. - Mycologia 4: 45-48, plate 57CYBERLIBER
  • Seaver, F. J. 1914. A preliminary study of the genus Lamprospora. - Mycologia 6: 5-24, plate 114. PDF
  • Vega M., Janošík L., Eckstein J., Martínez-Gil R. & Rubio E. 2021a. Warts galore – on three new Lamprospora De Not. species (Pezizales) from Southern Europe and Macaronesia and a type revision of three species described from the US by F. J. Seaver in the 1910s. - Cryptogamie Mycologie 42: 91–119. PDF
  • 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
Images:
Lamprospora tuberculata, SEM-image of ascospore Lamprospora minuta, tuberculata, SEM-image of ascospores
3: Lamprospora tuberculata, SEM-image of ascospore 4: Lamprospora tuberculata, SEM-image of ascospores, Germany, Saxony Anhalt, Aseleben, leg. J. Eckstein 2013-12-11, no. 34002

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