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PersooniaPersooniaVolume 18 - 2 2003
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The two anamorphs classified
so far in Phoma sect. Pilosa (‘hairy’ pycnidia in vitro) are both
metagenetically related to species of the ascomycetous genus Pleospora.
In addition to their characteristics in vitro and in vivo short comments on the
hosts, literature data, ecology and distribution are given.
The notes include additional documentation of the type
specimens (dried cultures) of the recently described Phoma schneiderae
Boerema et al., Phoma pimpinellae Boerema et al. and Phoma leveillei
var. microspora de Gruyter & Boerema. Some excluded species are discussed
as new proposed taxa: Asteromella ulmi nom. nov. (teleom.
Mycosphaerella ulmi Kleb.), Microsphaeropsis fuckelii (Sacc.)
Boerema comb. nov. (teleom. Leptosphaeria coniothyrium (Fuckel)
Sacc.) and Microsphaeropsis glumarum (Ellis & Tracy) Boerema comb.
nov.
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In the second and last part
of this paper the genus Pseudobaeospora is redefined, its taxonomic
position is discussed, and the possibilities of a formal infrageneric classification
are considered. Because of the recent discovery of another new species, viz.
P. mutabilis Adamík & Bas, emendations of the key published in the first part
of this paper (Bas, 2002), are proposed. Descriptions and drawings of all
European taxa known are presented. Extralimital species are discussed and
compared with European species.
With the rapid increase in the number of species of the genus
Pseudobaeospora in Europe from one or two ‘classical’ ones before 1995 to
14 to 16 species at present, also the morphological diversity of the genus has
increased considerably. Therefore a new circumscription of the genus has become
necessary, herewith emending the two most recent ones by Singer (1986) and Bas
(1995).
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A key is provided to the European taxa of Bolbitius, mainly based on a revision of material from the Netherlands and adjacent regions. The nomenclature and morphological variation of B. titubans and B. reticulatus are discussed. The new combination B. titubans var. olivaceus is proposed. Full descriptions are given of the critical species B. demangei and B. lacteus. Bolbitius ferrugineus is described as a new species, based on material from southern Italy.
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Type collections of four species of Disciseda have been carefully re-examined. This has lead us to propose the synonyms Disciseda pedicellata = D. hyalothrix and D. arida = D. verrucosa. Our findings are supported by photographs of the macroscopic characters and spore ornamentation with scanning electron microscope of the collections studied.
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Some new combinations in Conocybe are made and justified. The name Conocybe apala is proposed to replace the names C. albipes and C. lactea. Conocybe albipes var. pseudocrispa and C. moseri var. bisporigera are distinguished on the rank of species. On the other hand, Conocybe subalpina is reduced to a variety of C. pallida and C. rickenii to a forma of C. siliginea. In addition, three new combinations are made in Pholiotina on the rank of subsections.
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Crepidotus cristatus is described as a new species close to C. citrinus. Distinctive features are the yellow colour of the fruit-bodies, (sub-)globose spores, small cheilocystidia with finger-like outgrowths, thick-walled epicuticular hyphae near the point of attachment and small crystals on the cystidia and on the pileipellis.
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Four interesting species of Conocybe and one species of Pholiotina, recently recorded from western Europe, are described and illustrated. Conocybe merdaria, related to C. pubescens, is described as a new coprophytic species with the type locality in Westfalen, Germany. Another coprophytic species, C. magnispora, was found in the Netherlands and had not been reported from Europe before. The collections of C. farinacea in the Netherlands represent the first records of this species in continental Europe. It is demonstrated that the European records under the name C. fragilis, originally described from North America, in fact belong to a different species, viz. Galera incarnata. The new combination Conocybe incarnata is made. The species, known in Europe under the name of Conocybe plicatella or Galerella plicatella, appears to be different from the original description of Agaricus plicatellus from North America and to belong to the genus Pholiotina. The new name Pholiotina sulcata is introduced.
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A new species of ascomycetes, Phaeotrichosphaeria minor, is described, illustrated and compared with the closely related species within the genus and a modified key is given.
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Throughout the years, a number of unknown species in subsect. Setulosi have been collected and preserved. As a result of our work on the Flora agaricina neerlandica, some new species and a new variety are described from the Netherlands.
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Lophiotrema psychotrii spec. nov. is described and illustrated based on specimens occurring on Psychotria asiatica and Rhodomyrtus tomentosa fruits in Hong Kong. This species is characterized by small, hyaline, guttulate, uniseptate, fusiform ascospores bearing a narrow mucilaginous sheath, which is narrow in the middle and drawn out at both ends to form pad-like appendages. A synoptic table and key to Lophiotrema species is provided.
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In the scope of a revision of the genus Agrocybe for Flora agaricina neerlandica volume 6, a new species was discovered from heaps of woodchips in Rotterdam, the Netherlands. The species, Agrocybe rivulosa, spec. nov. is here described and is characterized by the strongly radially rugose cap, a large but thin ring and large spores of 11.5–12.0 7.0–8.0 mm on average. It belongs to subgen. Agrocybe sect. Agrocybe on account of the spores with a conspicuous and wide germ pore and the clavate to sphaeropedunculate cystidia. The species has been found on several localities in the (north)west of the Netherlands. Recently, the species has also been found in the eastern part of the Netherlands and in Luxembourg.
Furthermore, a key is provided to the species on woodchips in the Netherlands and adjacent countries.
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An account of three species of the genus Meliola occurring on Lecythidaceae in India is presented here, viz. Meliola indica Syd. & P. Syd., recollected on Barringtonia acutangula in the southern Western Ghats, Meliola careyae (Stev.) Hosag. comb. nov. and Meliola careyae (Stev.) var. indica var. nov.
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A new Coprinus species in subsection Setulosi, Coprinus parvulus is described and illustrated.
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