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	Provedor de dados Naturalis (33) Autor Arx, J.A. von (33) Aa, H.A. van der (3) Guarro, J. (3) Mukerji, K.G. (2) Samson, R.A. (2) Singh, N. (2) Constantinescu, O. (1) Douwes, G.A.C. (1) Dreyfuss, M. (1) Gams, W. (1) Martínez, A.T. (1) Müller, E. (1) Storm, P.K. (1) Walt, J.P. van der (1) Mais... Tipo do documento Article / Letter to the editor (33) Ano 1988 (1) 1987 (3) 1986 (4) 1984 (3) 1983 (1) 1982 (1) 1981 (3) 1980 (1) 1978 (3) 1977 (1) 1976 (1) 1975 (1) 1973 (3) 1971 (3) 1967 (1) 1965 (1) 1963 (1) 1959 (1) Mais... País Netherlands (33)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 33 Primeira ... 1 2 ... Última Pithosira and Xenoplaca, two dematiaceous Hyphomycete genera from South America Naturalis Arx, J.A. von; Aa, H.A. van der. The genera Pithosira and Xenoplaca were described but not illustrated by Petrak (1949). The following notes and figures are based on a study of the type specimens, which were collected by H. Sydow in 1937 during a field trip in Ecuador and which are maintained in the ‘Naturhistorisches Museum’ in Vienna. Tipo: Article / Letter to the editor Ano: 1981 URL: http://www.repository.naturalis.nl/record/532104 Mallochia, a new genus of the Eurotiales Naturalis Arx, J.A. von; Samson, R.A.. Pseudoarachniotus echinulatus is classified in a new genus Mallochia of the Eurotiaceae. It also shows affinities to Narasimhella (Gymnoascaceae) and Eleutherascus (Ascodesmidacae). Tipo: Article / Letter to the editor Ano: 1986 URL: http://www.repository.naturalis.nl/record/532286 Über die Ascomycetengattung Plochmopeltis Theiss Naturalis Arx, J.A. von. Plochmopeltis intricata (Ellis & Mart.) Theiss., the type species of the genus Plochmopeltis Theiss. occurs on the underside of leaves of Quercus virginiana var. virescens and Quercus laurifolia. The fungus grows superficially, with flattened ascomata which are not covered with a perithecial wall. The asci are surrounded by paraphysoids, which are brown and furcate into short branches at their apices. A new species, collected on leaves of Olea americana is described as Plochmopeltis ellisii v. Arx. The genus Plochmopeltis is related to Schizothyrium Desm. and Phillipsiella Cooke, and should be placed in the Dothiorales. Tipo: Article / Letter to the editor Ano: 1959 URL: http://www.repository.naturalis.nl/record/531697 Two new genera of the Eurotiales Naturalis Arx, J.A. von; Samson, R.A.. The ascomycete Anixiopsis peruviana Cain is transferred to a new genus Xanthothecium v. Arx & Samson. The name Leucothecium emdenii v. Arx & Samson, gen. nov., spec. nov. is proposed for a soil-borne fungus with light coloured, smooth cleistothecia, catenulate asci, lenticular ascospores and an arthroconidial state. The relationships of both genera are discussed. Tipo: Article / Letter to the editor Ano: 1973 URL: http://www.repository.naturalis.nl/record/532425 On Arachniotus and related genera of the Gymnoascaceae Naturalis Arx, J.A. von. Fungal strains in the culture collection of the CBS under the generic names Arachniotus and Pseudoarachniotus were studied. The genera Arachniotus (including Pseudoarachniotus) with 6 species, Narasimhella with a single species, and Amauroascus with 7 species are accepted. For Arachniotus glomeratus, Arachniotus striatisporus and Arachniotus lectardii the new generic names Arachnotheca, Byssoascus, and Eleutherascus are proposed. A key is given for the genera of the Gymnoascaceae. Tipo: Article / Letter to the editor Ano: 1971 URL: http://www.repository.naturalis.nl/record/532450 The ascomycete genus Sordaria Naturalis Guarro, J.; Arx, J.A. von. Sordaria is restricted to coprophilous, soil-, or seed-borne Pyrenomycetes with aseptate, elongate ascospores with a gelatinous, amorphous sheath. The genus is redescribed and a key to fourteen accepted species is given. A checklist of all taxa described as Sordaria is added. Tipo: Article / Letter to the editor Ano: 1987 URL: http://www.repository.naturalis.nl/record/532003 Leucosphaera, a new genus of the Pseudeurotiaceae Naturalis Arx, J.A. von; Mukerji, K.G.; Singh, N.. In the course of a study of herbivore dung collected in the Zoological Garden in Delhi, an ascomycete was observed and isolated which could not be accomodated in any known genus. It is therefore described below. Tipo: Article / Letter to the editor Ano: 1978 URL: http://www.repository.naturalis.nl/record/531721 A re-evaluation of the Eurotiales Naturalis Arx, J.A. von. The Ascomycota classified in the Eurotiales, Gymnoascales, and Onygenales are considered to belong to a single order Eurotiales, which includes 4 families, based on the shape, size, and symmetry of the ascospores. The Eurotiaceae and Gymnoascaceae have dorsiventrally flattened ascospores, the Onygenaceae have elongated ascospores, and those of the Amauroascaceae are spherical or nearly so. Spherical or obovate-saccate, thin-walled, unitunicate asci, aseptate, hyaline, or pale ascospores without germ pores, and the absence of ostiolate or discoid ascomata are characteristic of all Eurotiales (and the Erysiphales and Dipodascaceae). Anamorphs are often predominant; the conidia develop from meristematic hyphae, are often catenate and separate from each other... Tipo: Article / Letter to the editor Ano: 1987 URL: http://www.repository.naturalis.nl/record/532076 On Vonarxia, Kazulia and other fungi with Stauroconidia Naturalis Aa, H.A. van der; Arx, J.A. von. Four monotypic genera have been described for Deuteromycetes with superficial, crustose or pulvinate, setose conidiomata and hyaline, septate stauroconidia consisting of a main axis and 2—3 apical branches. The types of Fumagopsis Spegazzini (1910), Vonarxia Batista & Bezerra (1960) and Kazulia Nag Raj (1977) are specimens collected in South America. All develop superficially on living or decaying leaves. Phalangispora constricta Nawawi & Webster (1982) has been described from a pure culture isolated from conidia collected at Malaya. Fumagopsis trigliphioides Speg. has been redescribed by Van der Aa & Van Oorschot (1985) from the type specimen collected in 1909 in Argentina on leaves of Lucuma neriifolia. It forms a pigmented, setose,... Tipo: Article / Letter to the editor Ano: 1986 URL: http://www.repository.naturalis.nl/record/532468 Über einige aus dem Erdboden isolierte, zu Sporormia, Preussia und Westerdykella gehörende Ascomyceten Naturalis Arx, J.A. von; Storm, P.K.. Einige zur Ascomycetenfamilie der Sporormiaceae gehörende, aus dem Erdboden isolierte Pilze werden als Arten der Gattungen Sporormia (Synonym: Sporormiopsis), Preussia (Synonym: Honoratia) und Westerdykella (Synonym: Pycnidiophora) besprochen und mit einander verglichen. Sporormia aemulans var. ostiolata wird neu beschrieben. Einige als Sporormia und Preussia beschriebene Arten werden mit Preussia fleischhakii vereinigt. Tipo: Article / Letter to the editor Ano: 1967 URL: http://www.repository.naturalis.nl/record/532465 Notes on Gymnoascaceae Naturalis Arx, J.A. von. Based on type studies, the following genera are reclassified: Petalosporus, Disarticulatus, and Plunkettomyces as synonyms of Arachniotus; Gymnascella, Gymnoascoides, Macronodus, Tripedotrichum, and Uncinocarpus as synonyms of Gymnoascus, and Kuehniella as a synonym of Arachnotheca. The question of the type species of Arachniotus is discussed. Rollandina is considered to be a nomen confusum; sensu Apinis (1970) it belongs to Nannizzia. The accepted genera of the Gymnoascaceae are briefly reviewed. Tipo: Article / Letter to the editor Ano: 1977 URL: http://www.repository.naturalis.nl/record/532480 The genera Petriellidium and Pithoascus (Microascaceae) Naturalis Arx, J.A. von. Keys are given to the genera of the Microascaceae and to the species of Petriellidium and Pithoascus. In Petriellidium six species are accepted, P. desertorum, P. ellipsoideum, P. fusoideum, and P. africanum are described as new. In Pithoascus also six species are enumerated, P. platysporus and P. stoveri are described as new, for Microascus exsertus Skou the combination Pithoascus exsertus is proposed. Tipo: Article / Letter to the editor Ano: 1973 URL: http://www.repository.naturalis.nl/record/532166 Acrocladium, a synonym of Periconiella Naturalis Arx, J.A. von. Petrak (1949) described the genus Acrocladium (type species: A. andinum Petrak) from unidentified leaves of a liane, collected by H. Sydow in 1937 in Ecuador. He compared the genus with Stachybotrys Corda and Sterigmatobotrys Oudem. The type specimen (W) was available for study. The leaves bear several fungi with hemispherical-discoid fructifications, including Asterinella puiggarii (Speg.) Theiss., Chaetothyrina musarum (Speg.) Theiss., and Asterina cf. guaranitica Speg. The fungus described as Acrocladium andinum is hardly visible with the naked eye, but can easily be recognized under a stereo microscope. Petrak (1949) considered this fungus to be a leaf parasite, but it may be also a mycoparasite. Tipo: Article / Letter to the editor Ano: 1981 URL: http://www.repository.naturalis.nl/record/531629 Die Gattungen der Myriangiales Naturalis Arx, J.A. von. Die Myriangiales sind ascoloculäre Ascomyceten mit bitunicaten Asci und lassen sich durch Zwischenformen mit den Dothiorales verbinden. Bei ihnen entstehen die Asci im Innern von Fruchtkörpern einzeln zerstreut und sind kugelig oder breit keulig. Die 21 anerkannten Gattungen werden schlüsselförmig dargestellt und anschliessend einzeln besprochen. Die Vertreter der Gattungen Myriangium und Angatia wachsen auf Schildläusen oder sind Saprophyten. Parasiten auf höheren Pflanzen werden in die Gattungen Elsinoë, Bitancourtia, Anhellia, Diplotheca und Butleria gestellt. Bei den Vertretern der Gattungen Uleomyces, Cookella und Pycnoderma handelt es sich um Hyperparasiten auf blattbewohnenden Kleinpilzen. Die Arten der Gattungen Molleriella, Saccardinula,... Tipo: Article / Letter to the editor Ano: 1963 URL: http://www.repository.naturalis.nl/record/531713 Notes on Beauveria Naturalis Arx, J.A. von. Relationship between Beauveria and some other genera is discussed. SEM-micrographs of the conidiophores of B. nivea are given. Synonymy of Tolypocladium with Beauveria is emphasized. The orthographic error B. arenarium (Petch) v. Arx (1986) is corrected and should be read B. aranearum. Tipo: Article / Letter to the editor Ano: 1988 URL: http://www.repository.naturalis.nl/record/532414 A key to the species of Gelasinospora Naturalis Arx, J.A. von. The species described in Gelasinospora and in the synonymous genus Anixiella are keyed out and listed alphabetically. Three species described as Anixiella are transferred to Gelasinospora. Tipo: Article / Letter to the editor Ano: 1982 URL: http://www.repository.naturalis.nl/record/531751 Further observations on Sporotrichum and some similar fungi Naturalis Arx, J.A. von. Sporotrichum azureum Wright & v. Arx, isolated from wood in Argentina, is described and illustrated. The relationship of the genus Sporotrichum with Ptychogaster is discussed, both may represent conidial states of basidiomycetes ( Tyromyces, Oligoporus). Tipo: Article / Letter to the editor Ano: 1973 URL: http://www.repository.naturalis.nl/record/532008 Das hymenophorale Trama bei den Agaricales Naturalis Douwes, G.A.C.; Arx, J.A. von. Short descriptions and camera lucida drawings are given of cross-sections through the hymenophoral trama (lamellae or tubes) of 24 Basidiomycetes. These represent all the 16 Families of the Agaricales sensu Singer (1962). The typical members of the Agaricales in a limited definition have to be characterised by a more or less regular or bilateral trama with enlarged cells, or with swollen cellwalls in the Boletaceae, Strobilomycetaceae, Gomphidiaceae and Paxillaceae. In species of the genera Polyporus, Pleurotus (Polyporaceae), Lentinellus and Crepidotus such enlarged or swollen cells are lacking, the trama is irregular and is composed of a dense network of thickwalled hyphae. These genera and others like Schizophyllum better can be classified in the... Tipo: Article / Letter to the editor Ano: 1965 URL: http://www.repository.naturalis.nl/record/535129 Callistospora and Creodiplodina, two Coelomycetous genera from Australia Naturalis Arx, J.A. von; Constantinescu, O.. The coelomycete genera Callistospora and Creodiplodina were described but not illustrated by Petrak (1955, 1957). Both genera have been omitted in recent publications on Coelomycetes. The following notes and figures are based on a study of the type specimens collected by E. Gauba in Australia and maintained in herb. W. Tipo: Article / Letter to the editor Ano: 1983 URL: http://www.repository.naturalis.nl/record/531738 Über die Typusart, Zwei neue und einige weitere arten der Gattung Sporotrichum Naturalis Arx, J.A. von. Sporotrichum aureum, der Lectotypus der Gattung Sporotrichum, wird auf Grund einer Neuisolierung als zu den imperfekten Basidiomyceten gehörig charakterisiert. Zwei neue Arten werden beschrieben als Sporotrichum dimorphosporum und Sporotrichum sporodochiale. Der bisher als Sporotrichum cerebriforme bekannte Pilz wird in die Gattung Trichosporiella gestellt. Tipo: Article / Letter to the editor Ano: 1971 URL: http://www.repository.naturalis.nl/record/532045 Registros recuperados: 33 Primeira ... 1 2 ... Última

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