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| Registros recuperados: 252 | |
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| Royen, P. van. |
| As has been stated in the introduction of the second part, this third part will include the remainder of the American part of the tribe Eupodostemeae of the subfamily Eupodostemoideae which was not treated in part I, viz. the genera Oserya, Devillea, Ceratolacis, Mniopsis, Podostemum and Castelnavia. Included are the dubious genera, and it also contains additions and corrections to part I, latin descriptions of new taxa, a list of collectors’ numbers in this part, new references to the literature, and a general index to the third part. The attention of the reader is drawn to a publication of SZAFER (1952) in which a fossil Podostemacea from Europe has been described. As I have not seen the material it is at present impossible to judge the value of the... |
| Tipo: Article / Letter to the editor |
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| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/534786 |
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| Sitter, L.U. de. |
| In a very simplified form one could say that with the exception of the Undation theory of van Bemmelen (1933a—d, 1948, 1952) and suggestions by Glangeaud (1947, 1948) the orogenic forces are generally sought in a lateral compression either by contraction due to cooling (Jeffreys, 1952) or under the influence of convection currents (Vening Meinesz, 1934, 1950; Griggs, 1939; Hess, 1948, etc.) below the crust. In the original conception of Vening Meinesz the buckling started as an elastic deformation but since Bijlaard (1938) showed that plastic buckling oblique to the main stress direction was more probable, Vening Meinesz changed over to this view. The difficulty in the elastic buckling hypothesis was the enormous stress (40—50.000 kg/cm²) needed to buckle... |
| Tipo: Article / Letter to the editor |
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| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/505800 |
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| Bakker, K.; Steenis, C.G.G.J. van. |
| Mostly evergreen trees or shrubs (outside Mal. some woody climbers), often aromatic (in leaves and fruit), bark of the stem (and roots) containing a circle of schizogenous resin ducts outside the phloem; twigs sometimes ending in a thorny tip; indument if present consisting of simple (exceptionally 2-armed or capitateglandular) hairs. Leaves simple, penninerved, spirally arranged, frequently crowded towards the twig ends, mostly entire. Stipules 0. Flowers actinomorphic, mostly 5-merous, bisexual or functionally unisexual or ± polygamous, solitary or in few- to many-flowered, axillary or terminal, bracteate corymbs or thyrses. Bracteoles often 2. Sepals imbricate, free or more rarely connate below. Petals imbricate, their lower portion often narrow and... |
| Tipo: Article / Letter to the editor |
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| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/532584 |
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| Hooijer, D.A.. |
| CONTENTS Introduction............... 1 Fossil Proboscidea and the stratigraphy of the Pleistocene in Southeastern Asia. 3 Order Proboscidea............. 9 Suborder Elephantoidea.......................... 9 Family Elephantidae............ 9 Subfamily Stegodontinae........... 9 Stegolophodon stegodontoidesPilgrim)......... 9 Stegodon insignis (Falconer et Cautley)........ 13 Stegodon trigonocephalus Martin......... 17 Stegodon hypsilophus Hooijer.......... 86 Subfamily Elephantinae........... 89 Archidiskodon celebensis Hooijer......... 89 Archidiskodon planifrons (Falconer et Cautley)...... 92 Stegoloxodon indonesicus Kretzoi species inquirenda..... 104 Elephas hysudricus Falconer et Cautley........ 107 Elephas hysudrindicus Dubois.......... 110 Elephas... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 38.22. |
| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/317737 |
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| Mees, G.F.. |
| Of the various races of white-eyes that inhabit the central group of the Solomon Islands, the race from the island of Rendova was the first to become known to science. Tristram (1882) recorded this race, which he indentified with Tephras olivaceus Ramsay, described the previous year from the "Solomon Islands", without an exact indication of its type-locality (Ramsay, 1881). Tristram (l.c.) stated that the species was a typical member of the genus Zosterops, and that, consequently, Tephras olivaceus Ramsay became preoccupied by Zosterops olivacea auct. (Certhia olivacea L.) from Réunion. Therefore he proposed the new name Zosterops rendovae, his comment being as follows : "This bird has already been described by Mr. Ramsay ... as Tephras olivaceus, sp. nov.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.83. |
| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/318733 |
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| Boschma, H.. |
| As shown by Holthuis (1954), the correct name for the European crab commonly referred to as Xantho floridus (Montagu) is Xantho incisus (Leach). A Rhizocephalan parasite of this crab was first mentioned (without an indication of specific characters) by Gerbe (1862); afterwards specimens were recorded by Kossmann (1873), who suggested that they might be identical with his Sacculina benedeni, the parasite of the crab Pachygrapsus marmoratus (Fabricius), at present considered identical with Sacculina carcini Thompson. Bonnier (1887) used the name Sacculina gerbei Giard for the parasite of Xantho incisus; this name was, however, not mentioned in any of the several papers by Giard dealing with Rhizocephala. In the present paper the parasite is referred to with... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.36; 42.74. |
| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/318143 |
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| Steenis, C.G.G.J. van. |
| In the absence of a complete bibliography of the botanical literature of Malaysia, comparable to those on Eastern Asia and the Pacific by MERRILL & WALKER, and as the ‘Flora Malesiana’ will not to be completed within the near future, the need was felt to have at hand a concise, selected bibliography of existing revisions and other phytographical publications temporarily providing taxonomists with a reference to what is roughly available for the identification of Malaysian collections. When the ‘Flora Malesiana’ is completed, after some decades, this bibliography should no longer be required, as the references contained in it will all have been accounted for in the Flora itself in one way or another. In the meantime, however, a list arranged by families... |
| Tipo: Article / Letter to the editor |
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| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/532641 |
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| Stafleu, F.A.. |
| Sectio Ciliantha Stafl., subsectio Ferrugineae Warm. A V. vismiifolia Spruce ex Warm. stipulis nullis, foliis longe petiolatis majoribus latioribus, nervis lateralibus pluribus, floribus minoribus calcare inflato instructis differt. Arbor. Ramuli juveniles, petioli, inflorescentia, foliorum pagina inferior indumento ferrugineo-canescente instructi. Stipulae nullae. Folia opposita, petiolo c. 15 mm longo, lamina elliptica, c. 12-16 cm longa, c. 5½-7 cm lata, apice breviter obtuse apiculata, retusa, basi obtusa, nervis supra haud prominentibus, lateralibus subtus prominentibus, majoribus utrinque 15-20 sub angulo c. 50-60’ e costa ortis a nervo limbali undulato margini proximo junctis, venulis supra haud conspicuis, subtus prominulis, reticulatis.... |
| Tipo: Article / Letter to the editor |
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| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/534992 |
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| Lam, H.J.. |
| This is a supplement to Husson & Lam’s revision of Haplolobus in Blumea 72, 1953, 413—458, which will be referred to in the present paper as: “Husson & Lam 1953”. There is one new species (H. mollis, from Halmaheira) and one new forma ( H. acuminatus, fa glabrior) and the area of the genus has possibly to be extended to include Palau. I would not be surprised at all if it would turn up in some of the Philippines Islands. Female flowers have been described for the first time of H. borneensis. Both in that species and in H. clementium the inflorescences have now been found to occasionally possess more or less abortive vegetative buds. This seems more and more a character of generic importance. |
| Tipo: Article / Letter to the editor |
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| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/525627 |
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| Sleumer, H.. |
| During a recent treatment of the Proteaceae for “Flora Malesiana” it has become evident that a revision of the generic status of all proteaceous taxa reported from S. Asia and Malaysia as well as from the adjacent regions of Micronesia, Melanesia, Polynesia and subtropical-tropical Australia had to be made to reach a satisfactory correlation of the genera and species concerned as a basis for the discussion of phytogeographical relations both within and outside the proper Malaysian area. During this work it appeared necessary to transfer some species to other genera. A revision of the genus Helicia showed that a group of species had to be segregated as a distinct new genus Heliciopsis. My studies are based on herbarium specimens borrowed from the following... |
| Tipo: Article / Letter to the editor |
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| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/524548 |
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| Chabanaud, Paul. |
| Ce m’est un devoir particulièrement agréable que de saisir l’occasion de ce petit mémoire pour remercier M. L. F. DE BEAUFORT, M. H. ENGEL, Directeur du Zoologisch Museum, ainsi que M. J. J. HOEDEMAN de l’accueil qu’à diverses reprises, j’ai reçu de leur part, au Zoölogisch Museum, et aussi des multiples obligeances dont ils m’ont fait bénéficier, grâce à quoi il m’a été permis d’étudier à loisir les Soleoidei de la fructueuse et mémorable croisière 1899—1900 du Siboga. Le présent travail est consacré aux Cynoglossidae du seul genre Symphurus RAFINESQUE 1810, genre où la discrimination des espèces se fait particulièrement difficile. Au très petit nombre des caractères utilisables ne s’ajoute que trop souvent l’état précaire dans lequel ces êtres fragiles... |
| Tipo: Article / Letter to the editor |
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| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/504792 |
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| Kortenbout van der Sluijs, G.. |
| The occurrence of elephants in the Pleistocene of the Netherlands is discussed. In the Praetiglian Anancus arvernensis (Nesti) occurs together with a species of Archidiskodon. It is not yet known whether this is Mammuthus (Archidiskodon) planifrons (Falc. et Cautley) or Mammuthus (Archidiskodon) meridionalis (Nesti). In the Tiglian Mammuthus (Archidiskodon) meridionalis is found. Perhaps this form was still living during the Taxandrian. Other forms are not known from the Taxandrian. The Needian is characterized by Loxodonta (Hesperoloxodon) antiqua (Falc.). Some recent finds of vertebrates from ice-pushed gravels are reported. Near Rhenen Mammuthus (Mammuthus) primigenius (Blum.) was found together with an other species of elephant, Cervus (Megaceros)... |
| Tipo: Article / Letter to the editor |
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| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/505814 |
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| NN. |
| In preliminary identification it is very often imminent to hare a look through the dried leaf in order to observe details of nervature, glands, lines, dots, crystals, etc. These are often difficult to observe against the light of a window or the light from the sun. An exceedingly easy, cheap, and satisfactory way is to have an extra cover over the top of the lamp used for bringing light to the subject under the binocular lens, with a circular hole (1½ cm diam) made in the centre of this. The leaf is put over this hole and one looks through it with a normal hand lens. The extra cover we use at Leyden is the metal cap of old jelly containers. The second improvement is the etching of a net of sq. millimetres in the glass bottom of petri dishes, at least in... |
| Tipo: Article / Letter to the editor |
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| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/533008 |
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| NN. |
| Under this heading the regular routine exploration work, specially by the forestry services in Malaya, Sarawak, Brunei, North Borneo, Indonesia, and Lae, by the Botanic Gardens, Bogor and Singapore, and by the National Museum, Manila, will not be mentioned; it is most encouraging that the gradual accumulation of materials through these services is steadily increasing and gaining in importance. Since 1954 the Forest Department in Dutch New Guinea, at Hollandia, has also started a regular collection and a Herbarium, duplicates of which will be distributed through the care of the Rijksherbarium, Leyden. The aim of this chapter is to record in a concise way special collecting and exploration trips and expeditions; formerly these were included under... |
| Tipo: Article / Letter to the editor |
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| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/532773 |
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| Husson, A.M.; Holthuis, L.B.. |
| I. Historical. In the first half of the previous century the Netherlands government took a great interest in stimulating the scientific exploration of the Netherlands East Indies. In 1820 a "Natuurkundige Commissie voor Nederlandsch-Indië" (Natural History Commission for the Netherlands Indies; hereafter indicated as "Indies Commission") was installed and given the task to travel in the Dutch possessions in the East Indies with the object to extend the scientific knowledge of the natural productions of that region. The Indies Commission, which existed from 29 April 1820 to 17 April 1850, consisted of the following scientists (the dates behind the names indicate the time spent in the Indies as member of the Commission, the end of the stay marked with a † if... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.01. |
| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/318953 |
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| Steenis, C.G.G.J. van. |
| In the hierarchic structure of the plant kingdom the species is, in the ranks of taxa, the most important entity. In comparison with the other ranks it is the one which is most distinct in nature to human and animal observation. The species are the most important building-stones of living matter. Huxley rightly agrees with Timofeeff-Ressovski (4, p. 3-4) in saying:—“that species have a greater reality in nature, or a greater degree of objectivity, than higher taxonomic categories. Species are in the majority definable as distinct self-perpetuating units with objective existence in nature, and therefore are on a different theoretical footing from genera and families or higher categories, which are not definable in this concrete way”. |
| Tipo: Article / Letter to the editor |
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| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/532674 |
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| Lam, H.J.. |
| Evolution has for a century and a half been the subject of both speculation and research. It has been approached from almost every imaginable side. However, while on the one hand the fossil evidence has provided us with the main lines of development both of characters and of taxa, and on the other comparison of living organisms mutually and experiments of various kinds have given us some insight into the processes which may play a part in the mechanism of evolutionary development, the two methods of research are still separated by a wide gap and in spite of many efforts we are far from understanding what is really happening and what the admittedly necessary connection between the framework and the skin may be. In a recently published book the Swiss... |
| Tipo: Article / Letter to the editor |
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| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/525856 |
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| Sleumer, H.. |
| Trees or shrubs. Leaves spirally arranged or often distichous, sometimes crowded towards the top of the branchlets, simple, entire or crenate or serrate, crenations mostly glandular; petioles often thickened at the base and (or) the apex. Stipules small, rarely large and foliaceous, often early caducous, or wanting. Inflorescences subterminal or mostly axillary, sometimes on the old wood, in often spike-like racemes or in panicles or in short cymes, but sometimes condensed to glomerules or reduced to few-flowered fascicles or even to a solitary flower, apparently essentially cymose. Flowers bisexual or unisexual, in the latter case mostly dioecious, sometimes polygamous, actinomorphic, 3- to polymerous, cyclic (with sepals and petals) or rarely spiral... |
| Tipo: Article / Letter to the editor |
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| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/532657 |
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| Hartog, C. den. |
| Annual or perennial aquatics and marsh plants, sometimes laticiferous. Leaves basal and erect, sometimes floating, rarely all submerged, sometimes some reduced to phyllodes, lanceolate to sagittate, rarely broad-elliptic to ovate, entire, with a hydathode on the apex, curvinerved, nerves more or less parallel and gradually joining the marginal nerve, connected by ascending cross-veins; petiole sheathing, mostly with air-channels, often septated. Inflorescences mostly erect, racemose or paniculate; peduncle sometimes hollow, mostly with air-channels. Bracts 3(-2) per whorl of flowers or branches. Flowers actinomorphous, bisexual or unisexual (and then rarely with rudiments of the other sex). Sepals 3, imbricate, green, parallel-nerved, convex, persistent.... |
| Tipo: Article / Letter to the editor |
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| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/532650 |
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| Registros recuperados: 252 | |
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