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| Registros recuperados: 56 | |
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| Beer, Eva; Lam, H.J.. |
| Mr. BRASS’S New Guinea collection has yielded valuable data to our knowledge of the Verbenaceae. He discovered one new genus (Archboldia), 3 new species (Clerodendron Brassii, C. populneum and Premna inaequilateralis) and some interesting additions to the area’s of earlier described species, among which the rediscovery of Faradaya chrysoclada, and the discovery of two species new for South New Guinea (Premna sessilifolia and Teysmanniodendron bogoriense) and of one more for the whole island ( Glossocarya Hemiderma). |
| Tipo: Article / Letter to the editor |
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| Ano: 1936 |
URL: http://www.repository.naturalis.nl/record/524769 |
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| Lam, H.J.; Koster, Joséphine Th.. |
| With reference to and in continuation of our elaborate announcement in Blumea VI, nr. 2, 1950, p. 544—545, 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—Kruseman (CLII + 639 pp., 3 maps and about 220 illustrations). The 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... |
| Tipo: Article / Letter to the editor |
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| Ano: 1952 |
URL: http://www.repository.naturalis.nl/record/526285 |
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| Ooststroom, S.J. van; Lam, H.J.. |
| The editor has received the first and second fascicle of a treatise of the vascular plants of West Virginia. According to the preface this flora, when complete, will present descriptions, illustrations, geographical data and other information, particularly of local interest for the approximately 2000 species found growing without cultivation in that State. The first part contains the Pteridophyta, Gymnospermae, and Monocotyledoneae, the second part the Dicotyledoneae, p.p. (Saururaceae-Leguminosae). Keys are given for genera and species. The rather short descriptions are completed by many for the greater part original line drawings. Nomenclature and sequence are those of the 8th edition of Gray’s Manual, 1950, by M. L. Fernald. |
| Tipo: Article / Letter to the editor |
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| Ano: 1953 |
URL: http://www.repository.naturalis.nl/record/524629 |
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| Bok, Marie B.; Lam, H.J.. |
| Tuber et folium non videmus; unam spadicem glabram tantum videmus. Cataphylla 3 oblongo-lanceolata, 33, 19, 17 em longa, 6.7, 2.8, 4.5 cm lata, apice obtusa, duo ut apparet basi, unum (brevissimum) pedunculi apice affixa. Pedunculus 4.5 cm longus et i. v. 2.1 cm (i. s. 1.9 cm) crassus. Spatha 25 cm longa, late campanulata, basi convoluta, margine laciniata, marginem versus valde plicata, intus basin versus purpurea (?) et minute papillosa, supra pallidior, laciniae inaequales usque ad 9 cm longae. Spadix quam spatha duplo longior, 45 cm longa; inflorescentia feminea cylindrica, circ. 5.5 cm longa, 2.5—2.8 cm crassa; mascula arete contigua basi paulo constricta, circ. 5 cm longa, 2—2.5 cm crassa; appendix 36 cm longa, anguste cylindrica, sensim attenuata;... |
| Tipo: Article / Letter to the editor |
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| Ano: 1936 |
URL: http://www.repository.naturalis.nl/record/525438 |
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| Heurn, W.C. van; Lam, H.J.. |
| In continuation of a previous publication by Lam, in which meiomery and pleiomery in male flowers of Canarium decumanum were described, the same phenomenon is now discussed concerning the fruits of C. Mehenbethene (176 of one single tree) and C. commune (1126 fruits mixed from more than one tree). An investigation of the material gave the following results: 1. C. commune and C. Mehenbethene are closely related; the latter may prove to be a polyploid of the former. Their areas are partly overlapping, but C. commune has its centre in the Moluccas, C. Mehenbethene in New Guinea and W. Polynesia. 2. A tendency to reduce the number of ovules and carpels in the ovary is assumed. By means of a statistical method (”phase index“) the position of either species in... |
| Tipo: Article / Letter to the editor |
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| Ano: 1937 |
URL: http://www.repository.naturalis.nl/record/526303 |
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| Husson, A.M.; Lam, H.J.. |
| More than twenty years have elapsed since the senior author (H. J. Lam) recognized Haplolobus as a genus separate from Canarium. In the mean time much newly collected material has become available and in view of the intended revision for Flora Malesiana, the time has come to sum up our present knowledge. It must be said first of all that this knowledge, in spite of a considerable progress, is still far from satisfactory. Not only is much of the material sterile, but the genus however small it is, more and more proves to be an extremely difficult one to handle in a practicable way. Whether or not this is due to its phylogenetic youth is of little consequence. The fact stands that we have to deal with a genus in which the subgeneric limits, even if... |
| Tipo: Article / Letter to the editor |
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| Ano: 1953 |
URL: http://www.repository.naturalis.nl/record/525972 |
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| Hou, Ding; Steenis, C.G.G.J. van; Lam, H.J.; Ooststroom, S.J. van; Barkman, J.J.. |
| The publication of the supplement 1 of the well known and essential reference work of “A Bibliography of Eastern Asiatic Botany” is very welcome. It is a continuation of the original work, which closed with 1936, and extends through 1958. It covers the botanical literature on eastern Asia, as indicated by the title, which comprises China, Japan, Korea, Ryukyu, Mongolia and Soviet eastern Asia, as well as the major published papers appertaining to adjacent areas. It has been prepared on essentially the same pattern as the original volume while the subject index has been treated perhaps in a more thorough manner. The volume contains over 11,000 extensively and carefully annotated entries occupying 414 pages. The work is in English but the titles, papers and... |
| Tipo: Article / Letter to the editor |
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| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/524871 |
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| Lam, H.J.. |
| Now that the war in Europe is over it seems appropriate, before returning to our regular duties, to devote soms words to the fate and the activities of our institution during that period. For Dutch readers many particulars may be found in the “Jaarverslagen” (Annual Reports) ; for sister-institutions abroad the following points may be of some interest. First of all it may be stated with deep gratitude that the National Herbarium of Holland has suffered no severe losses in man or material during the war. |
| Tipo: Article / Letter to the editor |
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| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/525326 |
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| Lam, H.J.. |
| C. G. G. J. VAN STEENIS, Maleische Vegetatieschetsen — Toelichting bij de plantengeografisohe kaart van Nederlandsch Oost-Indië (Sketches of Malaysian vegetations — Comments to the phytogeographical map of Netherlands East India) — Reprinted from the „Tijdschrift van het Koninklijk Nederlandsch Aardrijkskundig Genootschap”, Ser. II, Vol. 52, Jan.-March-May 1935, 112 pp. (repagination [Pages in the original: 25—67, 171—203, 363—398] with 46 photographs, 36 of which in the reprint only, and a phytogeographical map. The reprint preceded by a short preface, a (too) short index and a dedication to FRANZ JUNGHUHN „as a memory to his arrival in Java, one hundred years ago”. It is a great pleasure to me indeed to announce here, more particularly on behalf of those... |
| Tipo: Article / Letter to the editor |
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| Ano: 1936 |
URL: http://www.repository.naturalis.nl/record/525372 |
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| Lam, H.J.; Kerpel, D.A.. |
| M. (sect. Dasyaulus) subquincuncialis H. J. LAM & D. A. KERPEL, nova species. — Fig. 1. Arbor mediocris. Ramuli teretes, novelli griseo-fulvo-tomentosi. Stipulae subulatae, caducae, pubescentes, 0.2 cm longae. Folia subcoriacea, obovata, basi cuneata, apice breviter obtuseque acuminata vel rotundata vel rare paulo emarginata, 5—10 X 2.5—4.5 cm, subtus minute sparse adpresse ferrugineo-tomentosa, ultimatim glabrata; petioli graciles, supra sulcati, 1.3—2 cm longi; costa media subtus praecipue folii basi prominens, nervi seeundarii graciles, utrinque 11—14, angulo 65°— 75° de costa adscendentes; nervi tertiarii pergraciles, typo § Dasyauli, i. e. prope marginem laxe reticulati, prope costam uno vel nonnullis nervis secundariis brevibus adscendentibus.... |
| Tipo: Article / Letter to the editor |
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| Ano: 1939 |
URL: http://www.repository.naturalis.nl/record/525289 |
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| Lam, H.J.. |
| Premna brongersmai, nov. spec. — Frutex? Ramuli teretes conspicue subdistanter lenticellati 0.3—0.5 cm crassi, internodia in specimine 7—11 cm longa. Folia coriacea subrigida, decussatim opposita glaberrima petiolata, ovata vel oblongo-ovata vel subovata vel oblongo-lanceolata, basi plus minusve late rotundata, marginibus integra, apice abrupte vel subabrupte peracute acuminata, latiora 8.5—11 X 4.7—5.7 cm, angustiora (in eodem specimine, ut apparet) 12—14.5 X 4—4.5 cm ; nervi haud prominentes, costa media subtus prominente excepta; nervi secundarii graciles utrimque 5—7, curvati, margines versus diminuti haud confluentes, tertiarii pertenues subdistanter transversi, reticulatione minutissima areolata; petioli e basi incrassata 1— 1.7 cm longi tenues.... |
| Tipo: Article / Letter to the editor |
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| Ano: 1954 |
URL: http://www.repository.naturalis.nl/record/524785 |
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| Lam, H.J.. |
| Dr. C. A. BACKER and Dr. O. POSTHUMUS, Varenflora voor Java. Overzicht deiop Java voorkomende varens en varenachtigen, hare verspreiding, oekologie en toepassingen. Uitgave van (Fern flora for Java. Conspectus of the ferns and fern allies occurring in Java, their distribution, ecology and use. Issued by) ’s Lands Plantentuin, Buitenzorg, June 1939. I—XLVII, 1—370, 1 Plate, 1 map and 81 text figures. — ƒ 7.50. The users both at home and abroad of Dr. BACKER’s florae have always regretted that, however carefully these books have been prepared, most of them were imperfect in one way or another. They were either restricted to certain vegetations (weedflorae for tea and sugar-cane) or did not cover all groups of vascular plants; the ”Flora van Batavia“ (1907),... |
| Tipo: Article / Letter to the editor |
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| Ano: 1940 |
URL: http://www.repository.naturalis.nl/record/526255 |
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| Steenis, C.G.G.J. van; Lam, H.J.. |
| In 1902 Gresshoff edited, for the “Koloniaal Museum” at Haarlem, a folio memorial volume, “Rumphius Gedenkboek”, dedicated to the memory of that great pioneer in the East Malaysian tropics, Rumphius, at the occasion of the bicentenary of his death in Ambon, the Moluccas, where he lived from 1654 till his death in 1702. Notwithstanding many mishappenings he attained the ripe age of 75 years, a most unusual career for a pioneer in the tropics, and carried on, as a disinterested hobby, nay as a vocation, his studies of plants and animals. His observations, laid down in voluminous MSS, none of which was published during his life-time, are, besides being written in a most lively style, so accurate, that they still form a source of knowledge today. The 1902... |
| Tipo: Article / Letter to the editor |
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| Ano: 1960 |
URL: http://www.repository.naturalis.nl/record/526175 |
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| Lam, H.J.. |
| In one of his papers on Malaysian Orchids R. Schleehter (1911) expresses his surprise that the flora of Celebes, though promising so much from a phytogeographical point of view, is very little known in comparison with that of the Philippines and Java and even with that of Borneo. In 1926 E. D. Merrill repeated this assumption with little less emphasis, and it is, indeed, still holding good even nowadays. I am not able to tell the reason why Celebes has been so much neglected in this respect, though it has been given ample attention by zoogeographers. Yet, botanical exploration has been carried out ever since the French scientific world cruises of the “Astrolabe” (1828) and the “Astrolabe” and the “Zelee” (1839). The more important collections have been... |
| Tipo: Article / Letter to the editor |
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| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/524741 |
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| Lam, H.J.. |
| Fate has knocked at your door. It has reminded you that, as to the years of your life, you are no longer a young man, that your age will be sixty five on the day this little volume will be presented to you. Time and fate are inexorable powers. Sometimes the question has occurred to me, whether we have any right to speak of a “Jubilee”, whether one’s retirement from office or the attainment of high age is something to be gratulated upon, since these events are usually not exactly welcome to the person involved. Yet, I think there cannot be any doubt as to this. For, can there be ever more reason for deep satisfaction and gratitude than when a man may without self-reproach, look back upon an honest and successful life? |
| Tipo: Article / Letter to the editor |
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| Ano: 1946 |
URL: http://www.repository.naturalis.nl/record/526341 |
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| Lam, H.J.. |
| The Sapotaceae have of old a bad reputation among classificators because of the extreme complexity in which the single features are distributed over its genera, species and individuals. It is, in particular, extremely difficult to find satisfactory generic delimitations and consequently, the family yields a rich field both for lumpers and for splitters. Both categories, and several intermediaries, have given their opinions, as has been recently recalled by Charles Baehni in his “Mémoires sur les Sapotacées I, Système de Classification” (Candollea VII, 1938, 394—508). It is my present purpose to deliver a few annotations with regard to this valuable publication, meant, not in the first place as criticism, but as contributions towards the extensive material... |
| Tipo: Article / Letter to the editor |
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| Ano: 1939 |
URL: http://www.repository.naturalis.nl/record/535023 |
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| Lam, H.J.; Varossieau, W.W.. |
| The genus Sarcosperma was excluded from the Sapotaceae by the first-named writer in 1925, the group being considered as of family rank. In 1926 the same author published a concise and fragmentary revision of the monotypic order, in which two new Malaysian species were described. The continental species, however, were merely quoted from literature. To this a key was added. As since then more material has been collected, it seemed desirable to give a new revision of this small but interesting order. For this purpose materials have, at our request, kindly been sent on loan to the Rijksherbarium (L) ¹) from the following institutions: Royal Botanic Gardens, Kew — K. Botanischer Garten und Botanisches Museum, Berlin — B. Musee d’Histoire Naturelle,... |
| Tipo: Article / Letter to the editor |
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| Ano: 1938 |
URL: http://www.repository.naturalis.nl/record/524479 |
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| Lam, H.J.; Royen, P. van. |
| Trees with leaves crowded at tip of thick branchlets; stipules subulate or narrowly deltoid, caducous; leaves, obovate or obovate-oblong, tertiary nerves ascending near the midrib, transverse near the margins of the leaf; flowers crowded at tips of branchlets, forming a pseudo-terminal, many-florous inflorescence; calyx with two whorls of two lobes each; corolla exsert, tube solid, pubescent without at apex, petals 8, imbricate; stamens 9—40, inserted in one or two rows in the throat; style subulate, exsert, glabrous; ovary glabrous, 3—8-celled, cells 1-ovuled, ovules attached at the apex of the central axis; sometimes an indistinct annular disc present; fruit large, often edible, crowned by the persistent style; fruit usually 1-seeded; seed ovoid with... |
| Tipo: Article / Letter to the editor |
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| Ano: 1952 |
URL: http://www.repository.naturalis.nl/record/524618 |
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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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| Lam, H.J.. |
| We always have thoroughly detested the mentality of those scientific periodicals which deemed it proper to introduce politics into their columns. During the war we have repeatedly been offended by the unworthy attitude of the editorial staffs of certain botanical journals of “Greater Germany” who admitted — or possibly even deliberately furthered — perorations stating not only the marvellous achievements of nazi-methods and their amazing usefulness towards the particular field of science covered by the periodical in question, but the faith and the devotion of their persons towards the sacred cause of the nazi-system. We have, as I say, not exactly admired this mentality in a scientific paper and we will not follow the example. However, too much has... |
| Tipo: Article / Letter to the editor |
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| Ano: 1945 |
URL: http://www.repository.naturalis.nl/record/525897 |
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| Registros recuperados: 56 | |
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