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Valsa ceratosperma & V. ceratophora - taxonomic position?
Chris Yeates, 20-06-2012 23:06
Chris YeatesBonsoir tous

can anybody shed any light on the taxonomic position of these two taxa? Index Fungorum keeps them separate, but I note that FRDBI (which usually follows IF - though not always quickly!) synonymises them: http://www.fieldmycology.net/GBCHKLST/gbsyns.asp?intGBNum=1696?
my initial query is prompted by a collection of Cytospora ceratophora I have been looking at - I noted that it was synonymised in FRDBI but not so in IF - is the teleomorph/anamorph link not yet accepted?

any help gratefully accepted

Amitiés
Chris
Alex Akulov, 21-06-2012 07:05
Alex Akulov
Re : Valsa ceratosperma & V. ceratophora - taxonomic position?
Hi.
According USDA database (http://nt.ars-grin.gov/fungaldatabases/):

Valsa ceratosperma (Tode : Fr.) Maire 1937 (Ascomycetes, Diaporthales)
? Sphaeria ceratosperma Tode : Fr. 1791 Note: Originally described on Rosa spp.; sanctioned by Fries (Syst. Mycol. II: 364, 1823), expanding the species concept to include the fungus on Quercus.
Variant spelling Sphaeria ceratospermum Tode : Fr.
?Diatrype ceratosperma (Tode : Fr.) Fr. 1849
= Valsa agnostica Cooke & Harkn. 1884
= Valsa americana Berk. & M.A. Curtis 1876 Note: Lectotype designated by Spielman 1985.
= Valsa caryigena Berk. & M.A. Curtis 1876
Variant spelling Valsa caryogena Berk. & M.A. Curtis 1876
= Sphaeria ceanothi Schwein. 1832 [1834] Note: Not Sphaeria ceanothi Cooke & Harkness 1884.
? Valsa ceanothi (Schwein.) Cooke 1877 Note: Not Valsa ceanothi Rehm 1911.
= Valsa ceanothi Rehm 1911 Note: Not Valsa ceanothi (Schwein.) Cooke 1877.
= Valsa ceratophora Tul. & C. Tul. 1863 Note: Described by Tulasne based on Mougeot's specimen on Quercus (as Valsa ceratosperma Tode).
= Valsa chlorodisca Cooke & Ellis 1879
? Engizostoma chlorodiscum (Cooke & Ellis) Kuntze 1898
= Valsa clavigera Dearn. & Barthol. 1917
= Sphaeria conspurcata Schwein. 1832 [1834] Note: Not Sphaeria conspurcata Wallr. 1833 = Massaria conspurcata Sacc.
? Valsa conspurcata (Schwein.) Cooke 1877
= Valsa decidua Cooke & Ellis 1877
? Engizostoma deciduum (Cooke & Ellis) Kuntze 1898
= Sphaeria decorticans Fr. : Fr. 1817 Note: Not the illegitimate later homonym Sphaeria decorticans Lib. 1837 = Diaporthe padi. Synonymy based on Hayova (1998); see also Adams (2005).
? Valsa decorticans (Fr. : Fr.) Fr. 1849
= Valsa delicatula Cooke & Ellis 1877
? Engizostoma delicatulum (Cooke & Ellis) Kuntze 1898
= Valsa diospyri Ellis & Everh. 1894
= Valsa etherialis Ellis & Everh. 1894
? Engizostoma etheriale (Ellis & Everh.) Kuntze 1898
= Valsa excorians Cooke & Ellis 1879
? Engizostoma excorians (Cooke & Ellis) Kuntze 1898
= Valsa exigua Nitschke 1870
= Valsa floriformis Ellis & Everh. 1891 [1890]
? Engizostoma floriformis (Ellis & Everh.) Kuntze 1898
= Sphaeria frustum-coni Schwein. 1832 [1834]
? Valsa frustrum-coni (Schwein.) M.A. Curtis 1867
? Cytospora frustum-coni (Schwein.) Starbäck 1894 Note: Teleomorph in anamorph genus?
= Valsa fuckelii Nitschke 1870 Note: Synonymy based on Hayova (1998).
= Valsa gossypina Cooke 1878
= Valsa hoffmannii Nitschke 1870 Note: Synonymy based on Hayova (1998).
Variant spelling Valsa hoffmanni Nitschke 1870 Note: Original spelling.
= Valsa horrida Nitschke 1870 Note: Synonymy based on Hayova (1998).
= Valsa leiphaemioides Berk. & M.A. Curtis 1876 Note: In Spielman 1985 as leiphaemoides.
= Valsa ligustrina Cooke 1879
= Valsa lutescens Ellis 1882
? Eutypella lutescens (Ellis) Sacc. 1883
? Engizostoma lutescens (Ellis) Kuntze 1898
= Diatrype maclurae Ellis & Everh. 1892
= Valsa maclurae Cooke & Ellis 1879 Note: Published Sept. 1879 not Valsa maclurae Fabre Oct. 1879.
? Eutypella maclurae (Cooke & Ellis) Ellis & Everh. 1892
? Engizostoma maclurae (Cooke & Ellis) Kuntze 1898
= Valsa macrocarpa Ellis & Everh. 1897
= Valsa minutella Peck 1884
= Valsa morigena Berk. & M.A. Curtis 1885
= Valsa multiplex Cooke & Ellis 1879
= Valsa nyssae Cooke 1878
= Valsa praestans Berk. & M.A. Curtis 1877
= Sphaeria radicum Schwein. 1832
? Valsa radicum (Schwein.) Cooke 1877
= Sphaeria rhizina Schwein. 1832 [1834]
? Valsa rhizina (Schwein.) Cooke 1877
= Valsa rhodophila Berk. & Broome 1859 Note: See Winter 1887. Not the illegitimate later homonym Valsa rhodophila Nitschke 1870; Nitschke referred Berkeley & Broome's fungus to a rose form of Valsa ceratophora. Not treated by Spielman (1985).
= Valsa rhoiphila Cooke & Ellis 1878 Note: Published as Valsa rhuiphila.
? Engizostoma rhoiphilum (Cooke & Ellis) Kuntze 1898
Variant spelling Valsa rhoophila Cooke & Ellis Note: Saccardo's Syll. fung. I: 127
= Sphaeria rimicola Schwein. 1832 [1834]
? Valsa rimicola (Schwein.) Cooke 1877
? Calosphaeria rimicola (Schwein.) Ellis & Everh. 1892
[= Valsa rubi Peck 1877 - illegitimate later homonym, not included in search] Note: Not Valsa rubi Fuckel 1870.
= Valsa rugiella Cooke & Ellis 1877
? Eutypella rugiella (Cooke & Ellis) Sacc. 1882
? Engizostoma rugiellum (Cooke & Ellis) Kuntze 1898
= Valsa schweinitzii Nitschke 1870 Note: Synonymy based on Hayova (1998).
Alternate State (Anamorph): Cytospora sacculus (Schwein. : Fr.) Gvrit.
Notes: Tode (1790) described Sphaeria ceratosperma based on a specimen from Rosa canina (as Sphaeria ceratospermum alpha strigosa), referencing the pre-Linnaean name Ceratospermum nigrum minimum discoides Micheli. Fries sanctioned the name Sphaeria ceratosperma (Syst. Mycol. II: 364, 1823), referencing Tode but based on examination of Mougeot's 1818 exsicati specimen on Quercus. Tulasne (1863) referred Mougeot's specimen to the new species Valsa ceratophora Tul. & C. Tul. 1863, citing Sphaeria ceratosperma sensu Fries as a synonym pro parte (partial synonym), but explicitly excluding the type of Sphaeria ceratosperma Tode by stating: Here we are citing particularly those synonyms which refer to the fungus growing on Oak...Sphaeria ceratospermum Tode, although it is not much different, is said to live on the bark of Rosa canina L. Hubbes (1960) listed Mougeot's specimen as the type of Valsa ceratosperma (Tode:Fr.) Maire, even though it was on Quercus and not Rosa, the host of the fungus originally described by Tode in 1790. As a result, Valsa ceratophora Tul. & C. Tul. (described on Quercus) has been listed variously as a taxonomic synonym (Hubbes 1960) or nomenclatural synonym (Adams et al. 2005) of Valsa ceratosperma (Tode:Fr.) Maire (neotypified on Quercus). Spielman (1985) accepted Mougeot's specimen as the neotype of Valsa ceratosperma but did not list Valsa ceratophora as a synonym. Urban (1958) listed Torsellia dolosa as the anamorph of Valsa ceratosperma, while Kobayashi listed Cytospora rosarum as the accepted name of the anamorph, with Torsellia dolosa as a synonym. Gvritishvili (1982) disagreed, listing Cytospora sacculus as the anamorph of Valsa ceratosperma, followed by Spielman (1985).
Distribution: Cosmopolitan.
Substrate: Bark of dead or dying twigs and branches.
Disease Note: Opportunistic pathogen, canker.
Host: Woody angiosperms from multiple plant families. Pathogen of apple trees.
Alessio Pierotti, 21-06-2012 09:39
Alessio Pierotti
Re : Valsa ceratosperma & V. ceratophora - taxonomic position?
This is the work of Linda Spielman published in 1985 in the Canadian Journal of Botany about the Valsa on hardwood....