Leaf-inhabiting genera of the Gnomoniaceae, Diaporthales - CBS

So g o n o v e t a l.
Fig. 20. Apiognomonia borealis CBS 799.79, culture morphology, colony habit, 40 d, 23 ºC. A, C, E. Surface. B, D, F. Reverse. A, B. PDA. C, D. MEA. E, F. MYA. Scale 1 cm.
[≡ Gnomonia veneta (Sacc. & Speg.) Kleb., Jahrb. Wiss. Bot. 41: 533.
1905 non Speg. 1879.]
≡ Gnomonia platani Kleb., Vortr. Ges. Bot. 1: 28. 1914.
Habitat: On overwintered leaves of Platanus occidentalis and P.
orientalis (Platanaceae), rarely, Tilia sp. (Tiliaceae).
Distribution: Widespread in temperate regions including Canada
(British Columbia), Europe (Bulgaria, France, Germany,
Switzerland), New Zealand, and U.S.A. (MD, TN).
Notes: A detailed description of Apiognomonia veneta and its
distinction from the closely related A. errabunda is provided by
Sogonov et. al. (2007).
Additional species of Apiognomonia
The following taxa are accepted species of Apiognomonia based
on their inclusion in multigene and ITS phylogeny.
Apiognomonia acerina (Starbäck) M. Monod, Beih. Sydowia 9:
63. 1983. Figs 18A–C; 19A,B.
≡ Gnomonia acerina Starbäck, Bih. K. Svenska Vetensk Akad. Handl. 14,
Afd. 3, n. 5: 17. 1889.
Habitat: On fallen leaves of Acer opalus Mill., A. platanoides L., and
A. pseudoplatanus L. (Aceraceae).
Distribution: Europe (Bulgaria, Germany, Switzerland)
Specimen examined: Switzerland, Valais, Salvan/Les Marécottes, Pont du Triège,
1300 m a.s.l., on overwintered leaves of Acer pseudoplatanus, May 2005, coll. M.
Monod (BPI 877677) GenBank EU254990.
Notes: Among species of Gnomoniaceae on Acer, Apiognomonia
acerina is unique in having ascospores that are wider than 3.5 µm
and having a central neck. Barr (1978) considered the basionym
Gnomonia acerina to be synonym of Apioplagiostoma aceriferum
(Cooke) M.E. Barr but Monod (1983) recognised this name as a
distinct species and provides detailed descriptions of both species.
ITS sequences of Apiognomonia acerina and Apioplagiostoma
aceriferum show these species to be distinct. Fig. 1 shows
Apioplagiostoma acerifum in Pleuroceras, a genus not detailed in
this study.
Apiognomonia borealis (J. Schröt.) M. Monod, Beih. Sydowia 9:
61. 1983. Figs 20A–F.
≡ Gnomonia borealis J. Schröt., Jahresber. Schles. Ges. Vaterl. Cult. 65:
275. 1888.
= Gnomonia pratensis Svrček, Česká Mykol. 28: 219. 1974 fide Monod 1983.
Habitat: On overwintered leaves and stems of Geranium pratense
L., G. sanguineum L., and G. sylvaticum L. (Geraniaceae).
Distribution: Europe (Czech Republic, Finland, Norway, Sweden,
Switzerland).
Specimen examined: Switzerland, Vaud, col du Mollendruz, on Geranium
sylvaticum, Monod 274, CBS 796.79, GenBank EU254999.
Notes: Apiognomonia borealis is distinguished from other species
of Gnomoniaceae on Geranium by the ascospores having a
supramedium septum. Monod (1983) provides a detailed description
of this species.
Apiognomonia errabunda (Roberge) Höhn., Ann. Mycol. 16: 51.
1918.
≡ Sphaeria errabunda Roberge in Desm., Ann. Sci. nat. Bot., ser. 3 10:
355. 1848.
≡ Gnomonia errabunda (Roberge) Auersw. in Gonn. & Rabenh., Mycol.
Eur. 5/6, p. 25. 1869.
More synonyms are listed in Sogonov et al. (2007).
Habitat: On overwintered leaves primarily of hardwoods trees in the
Fagaceae, Salicaceae, and Tiliaceae as well as other woody and
herbaceous plants including Chamerion angustifolium (L.) Holub, Rhus
glabra L. and Sorbus aria (L.) Crantz as listed in Sogonov et al. (2007).
Distribution: Widespread in northern temperate regions as listed in
Sogonov et al. (2007).
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