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  • 1
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    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi (0031-5850) vol.7 (1973) nr.2 p.313
    Publication Date: 2015-04-20
    Description: Newly discovered mycorrhizal relationships of boletes (with Nothofagus, Shorea, Quercus humboldtii, Alnus jorullenses, Eucalyptus, and Leptospermum) are discussed. Type studies on Fistulinella, Boletus granulatus var. capricollensis, Boletogaster, and Gastroboletus are reported. The following new combinations are proposed: subsections Pictini and Spectabiles in sect. Solidipes of Suillus; Suillus ochraceoroseus; Chalciporus piperatus, C. rubinus, C. rubinellus, and the new section Eximia of Leccinum, with L. eximium (Peck) Sing. The interpretation of Porphyrellus pseudoscaber on the basis of topotypical material is indicated.
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 2
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    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 4 no. 4, pp. 355-377
    Publication Date: 2024-01-12
    Description: Clitocybe cystidiosa, Neoclitocybe membranacea, N. lifotama, Hydropus xanthosarx, Xerocomus microsporus, Pulveroboletus paspali and the genus Hiatulopsis are described as new; the new combinations Clitocybe subtilis (Berk.) Sing. & Grinl., Hydropus funebris (Speg.) Sing., Hiatulopsis amara (Beeli) Sing. & Grinl. are proposed. A key to the species of Neoclitocybe and another to the sections Mycenoides and Irrorati of Hydropus are given. Chaetocalathus niduliformis, Gyrodon intermedins, Xerocomus alliaceus, and Boletellus obscurecoccineus are redescribed. Hiatulopsis forms axially symmetric spores on autobasidia.
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 3
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    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 7 no. 2, pp. 313-320
    Publication Date: 2024-01-12
    Description: Newly discovered mycorrhizal relationships of boletes (with Nothofagus, Shorea, Quercus humboldtii, Alnus jorullenses, Eucalyptus, and Leptospermum) are discussed. Type studies on Fistulinella, Boletus granulatus var. capricollensis, Boletogaster, and Gastroboletus are reported. The following new combinations are proposed: subsections Pictini and Spectabiles in sect. Solidipes of Suillus; Suillus ochraceoroseus; Chalciporus piperatus, C. rubinus, C. rubinellus, and the new section Eximia of Leccinum, with L. eximium (Peck) Sing. The interpretation of Porphyrellus pseudoscaber on the basis of topotypical material is indicated.
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 4
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    In:  Zoologische Mededelingen vol. 37 no. 10, pp. 157-165
    Publication Date: 2024-01-12
    Description: INTRODUCTION\nThe fossil remains of Hippopotamus from the Pleistocene "Elandsfontein" site near Hopefield, Cape Province, have already been briefly described by Singer and Keen (1955), who found that the material available at the time was not different from the living Hippopotamus amphibius L. However, it seems worthwhile to review their status since the Hippopotamus material has been considerably increased as a result of recent collecting trips to the site. Not only are there now cranial remains, but also postcranial material, notably carpals, tarsals and metapodials. The purpose of the present note is to place on record all the material at present in the Hopefield collection pertaining to the species in question. The specimens, originally housed in the Anatomy Department, University of Cape Town, have now been transferred to the South African Museum, Cape Town. The specimens\' numbers refer to the Hopefield collection catalogue.\nOrder ARTIODACTYLA Owen Family HIPPOPOTAMIDAE Gray Genus HIPPOPOTAMUS Linnaeus Hippopotamus amphibius L. subsp.\n\nDESCRIPTION OF SKULL AND DENTAL REMAINS\nThe best preserved cranial remains of the hippopotamus in the Hopefield collection are two posterior parts of skulls, both broken off in front of the orbits (the fragments composing the first skull are numbered 1259, 1263, 1264, 4061, 5909, 5925, 5940, 5951, 5966, 5968, and 6021; the fragments of the second specimen bear the following numbers: 5903, 5904, 5908, 5911, 5913, 5914, 5915, 5917, 5919, 5920, 5921, 5923, 5932, 5933, 5935, 5939,
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 5
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    In:  Zoologische Mededelingen vol. 37 no. 8, pp. 113-128
    Publication Date: 2024-01-12
    Description: INTRODUCTION\nThe fossil specimens of rhinoceroses recovered at the "Elandsfontein" site, Hopefield, Cape Province, belong to the two living species of Africa, viz., Ceratotherium simum (Burchell) and Diceros bicornis (L.) (Singer, 1954). Both are widely distributed in the African Pleistocene (see Hopwood and Hollyfield, 1954), and their distinguishing dental characters have been described by Cooke (1950). The purpose of the present publication is to place the Hopefield material on record.\nThe general age of the Hopefield fauna is considered to be early Upper Pleistocene, but it is probable that part of the fauna dates from the late Middle Pleistocene (Singer, 1957). In the material recorded below Ceratotherium is about four times less abundantly represented than is Diceros. The fact that the black rhinoceros was more common at the site than was the white species is in harmony with Hopwood\'s dictum: "Throughout the Lower and Middle Pleistocene the white rhinoceros (Ceratotherium simum) was common all over Africa, whereas the black species (Diceros bicornis) was rare: from the Upper Pleistocene onward the position was reversed" (Hopwood, 1954).\nThe Hopefield specimens, originally housed in the Anatomy Department, University of Cape Town, have now been transferred to the South African Museum, Cape Town. The specimens\' numbers refer to the Hopefield collection catalogue.\nOrder PERISSODACTYLA Owen Family RHINOCEROTIDAE Owen Genus CERATOTHERIUM Gray Ceratotherium simum (Burchell) subsp.
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 6
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    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 2 no. 1, pp. 1-62
    Publication Date: 2024-01-12
    Description: For the first time a systematic study of the types and authentic specimens of agarics and boletes preserved in the Persoon Herbarium has been carried out. Some aspects of the possibilities of type analysis with regard to specimens over 130 year old are discussed. 137 species were analyzed. The following new combinations are proposed: Mycena amygdalina (Pers.) Sing., Psilocybe angulata (Batsch ex Pers.) Sing., Inocybe argillacea (Pers. ex Pers.) Sing., Lepiota aspera var. acutesquamosa (Weinm.) Sing., Pseudoclitocybe bacillaris (Pers.) Sing., Acurtis chalybeus (Pers. ex Fr.) Sing., Hemimycena cucullata (Pers. ex Fr.) Sing., Tubaria dispersa (Pers.) Sing., Omphalia grossula (Pers.) Sing., Campanella merulina (Pers.) Sing., Mycena phyllogena (Pers.) Sing., Galerina laevis (Pers.) Sing., Galerina pumila (Pers. ex Fr.) Sing., Resupinatus tricholis (Pers.) Sing. A new name, Collybia kuehneriana Sing., is proposed.
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 7
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    In:  Persoonia - Molecular Phylogeny and Evolution of Fungi vol. 13 no. 2, pp. 189-192
    Publication Date: 2024-01-12
    Description: A recent paper by Th. W. Kuyper & M. van Vuure shows general agreement with an earlier paper by Singer & Machol on many nomenclatural problems and on the number of Russula species affected by the new starting point rules. A few minor disagreements with regard to contradiction between Arts. 13.1 and 63 are mentioned, and those regarding R. delica, R. nitida and R. atropurpurea are explained. We conclude (contrary to Kuyper & van Vuure\xe2\x80\x99s conclusions) that their statements confirm that Art. 13.1 as it now stands is detrimental to stability in nomenclature of Basidiomycetes, and unsettling as well as burdensome to the working taxonomist, and should be changed according to Proposal 42 now before the Nomenclature Committee.
    Repository Name: National Museum of Natural History, Netherlands
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  • 8
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 99 (1993), S. 6600-6606 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Product translational energy release spectra resulting from 248 and 193 nm photodissociation of methyl mercaptan are obtained for the hydrogen atom channels (CH3SH+hν→CH3S+H) by using the high-n Rydberg time-of-flight technique. The spectra exhibit vibrational structure that is assigned to a CH3–S stretch progression. At 248 nm, the progression extends only to v=2, while at 193 nm levels up to approximately v=17 are populated. The progression observed at 193 nm is bimodal, with the higher kinetic energy component showing greater spatial anisotropy than the lower energy component, suggesting that two different processes occurring on different time scales are responsible for the two components. The results at 248 nm are consistent with excitation to a repulsive electronic surface. For 193 nm excitation, the high kinetic energy component is consistent with direct photoexcitation to a repulsive surface and/or rapid intramolecular access to a repulsive surface. The lower kinetic energy component presumably derives from the molecule spending more time on an excited surface. A simple model is applied to estimate the extent of C–S bond extension for the various processes.
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  • 9
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 95 (1991), S. 8078-8081 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 93 (1989), S. 8017-8021 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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