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  • 2020-2022  (1,241,818)
  • 1950-1954  (228,299)
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  • 11
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    Reviews (1952)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 6 no. 3, pp. 596-598
    Details
    Publication Date: 2024-01-12
    Description: With reference to and in continuation of our elaborate announcement in Blumea VI, nr. 2, 1950, p. 544\xe2\x80\x94545, it is a pleasure to report now the publication of Vol. I, entitled: Malaysian plant collectors and collections, being a cyclopaedia of botanical exploration in Malaysia and a guide to the concerned literature up to the year 1950 by Mrs. M. J. van Steenis\xe2\x80\x94Kruseman (CLII + 639 pp., 3 maps and about 220 illustrations).\nThe General Part (roman page numbers) comprises introductory paragraphs (aim of work, interesting data and hints on labeling, lists of illustrations and literature of use to collectors and investigators, terminology of altitudinal zones, and the use of vernacular names) as well as chapters on the technique of botanical exploration and collecting, on the phytogeographical delimitation and subdivision of Malaysia, on the collections made in the area concerned (arranged both chronologically and geographically, with 1 map), statistics of collections and desiderata for further exploration with 2 maps), sources consulted for the data mentioned (literature and herbaria), and samples of handwritings of 70 collectors and botanists.
    Repository Name: National Museum of Natural History, Netherlands
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  • 12
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    Notes on Dutch Lichens (1954)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 7 no. 3, pp. 570-592
    Details
    Publication Date: 2024-01-12
    Description: In Madro\xc3\xb1o (1936) Herre has lamented the disappearance of lichen species through the disastrous interference of man. Unavoidably, the advance of civilised modern life is linked with destruction of the vegetation. This applies all the more as the endangered area is more densely populated and it certainly applies most alarmingly to the lichen flora of the Netherlands. Here, every way-side tree felled is an irreparable loss to the epiphytic lichen communities, every acre of heath burnt or turned into arable land is a blow to our stock of terrestrial lichen species, whereas the use of dry fertilisers and the spraying of orchards are very effective in killing any lichen in the neighbourhood that otherwise might have survived. A comparison of the material preserved in the older collections with what can be found nowadays, clearly shows what has gone lost. It is sad to think that an ever increasing number of species are on their way to total extermination.\nHowever, from a thorough investigation of the epiphytic communities of cryptogams latterly started by Mr J. J. Barkman, it becomes apparent that at least to some extent the losses may be compensated by the discovery of species hitherto overlooked or not recognised. It is on such and other finds that I intend to report from time to time.
    Repository Name: National Museum of Natural History, Netherlands
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  • 13
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    Notes on the Flora of Java, V. Identification of the new species and combinations proposed by C. P. Thunberg in the Florula Javanica by L. Winberg and F. O. Widmark (1825) (1950)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 6 no. 2, pp. 358-362
    Details
    Publication Date: 2024-01-12
    Description: Though the new names published in Thunberg\xe2\x80\x99s \xe2\x80\x9cFlorida\xe2\x80\x9d have been entered in the Index Kewensis, few botanists have tried to verify the status and synonymy of the new species proposed in this 2-thesis booklet. Thunberg\xe2\x80\x99s names were entered in Juel\xe2\x80\x99s \xe2\x80\x9cPlantae Thunbergianae\xe2\x80\x9d (1918, 412 pp.).\nThe diagnoses are generally too short and vague to allow a definite opinion. Only Schott, Mueller Arg., and F. E. Wimmer have examined material of resp. the Araceae, Euphorbiaceae, Campanulaceae.
    Repository Name: National Museum of Natural History, Netherlands
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  • 14
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    Preliminary account of Papuan Nothofagus (1952)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 7 no. 1, pp. 146-147
    Details
    Publication Date: 2024-01-12
    Description: As early as 1939 I started a study of Papuan Nothofagus, and since 1948 I was entrusted with the elaboration of all the material my colleagues could lay hands on. This work was repeatedly interrupted on account of official duties. Pending the full account of the work in the Journal of the Arnold Arboretum I regret that it seems necessary to safeguard my conclusions as soon as possible.
    Repository Name: National Museum of Natural History, Netherlands
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  • 15
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    Florae Malesianae precursores I. Xyridaceae (1953)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 7 no. 2, pp. 307-309
    Details
    Publication Date: 2024-01-12
    Description: Xyris malmei sp. nov. \xe2\x80\x94 Folia ensiformia, 7\xe2\x80\x9430 cm longa, subfalcata, minute papillosa. Scapus 20\xe2\x80\x9445 cm longus, teres vel subteres, papillatus. Bracteae ovatae ad ellipticae, obtusae, emarginatae vel retusae; bracteae basales cum nervo uno completo et nervis 4 descendentibus incompletis. Sepala lateralia naviculata, cum carina glabra carinata. Petala obovata, 8\xe2\x80\x949 mm longa, ungui 7\xe2\x80\x948 mm longo. Stamina 3\xe2\x80\x944.5 mm longa, antherae basi obtuse, apice profunde incisae, thecarum apex acute bifidus. Staminodia penicillata. Ovarium obovoideum. Stylus trifidus, ramulis apice capitatis.\nTypus: Robinson & Kloss 5962, in K: Malay Peninsula, Kedah Peak, 850\xe2\x80\x94 1200 m, Dee. 1915.
    Repository Name: National Museum of Natural History, Netherlands
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  • 16
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    Notes on the Flora of Java, VI (1950)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 6 no. 2, pp. 363-406
    Details
    Publication Date: 2024-01-12
    Description: Koorders, Fl. v. Tjibodas 2 (1923) 32\xe2\x80\x9446; Hochreutiner in Candollea 2 (1924\xe2\x80\x941926) 336\xe2\x80\x94359; Ochse, Indische Groenten (1931) 719\xe2\x80\x94722; Backer, Onkruidfl. Java Suiker (1930) 203\xe2\x80\x94209; Aimshoff in Blumea 5 (1942\xe2\x80\x941945) 515\xe2\x80\x94517. Miss Dr G. J. Amshoff started the revision of the Javanese Urticaceae, but left the definitive preparation to me.\nUrtica dioica L. and U. urens L. have been erroneously recorded for Java (Miquel, Fl. Ind. bat. 1\xc2\xb2, 1859, 227; Koorders, Exk. Fl. Java 2, 1912, 126). To my knowledge no specimens were ever collected there nor elsewhere in the Malay Archipelago.
    Repository Name: National Museum of Natural History, Netherlands
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  • 17
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    Revision of the Lichens of the Netherlands. II. Physciaceae (1952)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 7 no. 1, pp. 206-287
    Details
    Publication Date: 2024-01-12
    Description: In my paper on Parmeliaceae (in Blumea, vol. 6, 1947) some remarks have been made concerning the taxa below the rank of species (p. 3\xe2\x80\x944), one of them being the statement that I was to try to hold an intermediate course between those authors accepting multitudes of varieties and forms, and others abandoning them all. In the eyes of both I may have failed.\nIn the present paper I am going to alienate myself still farther from the former group of authors in reducing varieties to forms and doing away with many other forms. Although in a way this contradicts my inclination towards a meticulous classification in my former paper, it should be borne in mind that not all genera in lichenology can be treated alike. I still believe in varieties and forms \xe2\x80\x94 considering e.g. Parmelia physodes very good illustration \xe2\x80\x94 but on the other hand I am well aware now that in following Hillmann, whom I shall always gratefully remember for his kind help during the early days of my lichenological training, I have been decidedly all too punctilious.
    Repository Name: National Museum of Natural History, Netherlands
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  • 18
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    Notes on some Malaysian Cucurbitaceae (1954)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 7 no. 3, pp. 617-622
    Details
    Publication Date: 2024-01-12
    Description: Gynostemma hederifolia (Decne) Cogn. in D.C., Monogr. Phan. 3: 916, 1881. (\xe2\x80\x9chederaefolia\xe2\x80\x9d). \xe2\x80\x94 Sicyos hederifolius Decaisne in Nouv. Ann. Mus. Hist. Nat. Paris 3: 450, 1834.\nKANGEAN Island (N. of Bali): Gua Peteng, 1 M alt.; Backer 26948 (BO), 15-III1919, \xe2\x99\x82, filaments connate up to the top, leaves far more densely puberulous than in the next specimen.
    Repository Name: National Museum of Natural History, Netherlands
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  • 19
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    The Algae transported on drifting objects and washed ashore on the Netherlands coast (1950)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 6 no. 2, pp. 527-543
    Details
    Publication Date: 2024-01-12
    Description: Little attention has been paid till now to the algae, transported to the Netherlands coast on drifting objects. About a century ago T. D. Vrijdag Zijnen and G. Bisschop (near Scheveningen, \xc2\xb1 1845), and L. H. Buse (between Wijk aan Zee and Zandvoort, \xc2\xb1 1840\xe2\x80\x941847) were the first to pay attention to this subject. The material collected, especially that by the first two investigators, is mentioned in the Prodromus Fl. Bat. (1853). The book of Van Goor (1923) contains a chapter on these algae, in which, however, only few new observations occur. The author is much indebted to Dr Josephine Th. Koster for her kind help, as well as to Dr S. J. v. Ooststroom. The material, collected by Vrijdag Zijnen, Bisschop and Buse is almost completely present in the collections of the \xe2\x80\x98Rijksherbarium\xe2\x80\x99 and the \xe2\x80\x98Koninklijke Ncderlandse Botanische Vereniging\xe2\x80\x99, Leiden. The material, collected during the last few years has for the greater part been brought together by the present author, and furthermore especially by K. Swennen (Den Helder), J. Stock (Amsterdam), A. Mulder (Haarlem) and P. Leenhouts (Scheveningen). This material belongs to the collection of the Rijksherbarium, Leiden, but most of it is, for the time being, put under the charge of the \xe2\x80\x9cComit\xc3\xa9 ter Bestudering van de Nederlandse Mariene Flora en Fauna\xe2\x80\x9d (\xe2\x80\x9cCommittee on the Netherlands\xe2\x80\x99 Marine Flora and Fauna\xe2\x80\x9d) and temporarily preserved in \xe2\x80\x9cHet Filiaal\xe2\x80\x9d, Leiden.
    Repository Name: National Museum of Natural History, Netherlands
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  • 20
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    Revision of the Sapotaceae of the Malaysean area in a wider sense. IVa. Ganua Pierre ex Dubard (Additional Notes) (1954)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 7 no. 3, pp. 481-483
    Details
    Publication Date: 2024-01-12
    Description: G. kingiana (Brace) Van den Assem, Blumea VII\xc2\xb2, 1953, 373.\nVar. kingiana, l. c. 373.
    Repository Name: National Museum of Natural History, Netherlands
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