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| Registros recuperados: 56 | |
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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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| Holthuis, L.B.; Lam, H.J.. |
| The Talaud Islands are forming part of the Malay Archipelago, being situated north of Celebes and the Moluccas, south of Mindanao and east of the Sangihe group, between 3°45’ and 5°35’ N. lat. and 126°32’ and 127°10’ E. long. The main group consists of three larger islands, viz. Karakelong, Salebaboe and Kaboeroeang. The Nenoesa islands, a group formed by the small islands of Garete, Karaton, Merampi, Mengkopoe, Intata, Kakelotan and Maroh are situated northeast of the main group, including also Miangas (Palmas), an islet about 65 miles north of Karakelong, near Mindanao. |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/525051 |
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| Lam, H.J.. |
| Some time ago I proposed elsewhere (1) a new system of the Cormophyta. Since the periodical, whose hospitality was my privilege, may not reach many taxonomists who still may be expected to be interested in the proposal, I deem it justified to briefly review the results at which I arrived in the present journal; and this will give me an opportunity to explain one or two points of a nomenclatural nature which, it seems to me, were perhaps somewhat insufficiently elucidated in the paper quoted. As a matter of course, for details as well as for the full argumentation of my views I have to refer to that publication. |
| Tipo: Article / Letter to the editor |
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| Ano: 1947 |
URL: http://www.repository.naturalis.nl/record/525667 |
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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.. |
| It has so often been emphasized that the flora of large tropical islands like New Guinea is still very imperfect, that the impression has been established that the data available should be in a state unapt to produce a conspectus or to procure valuable conclusions. Though it is certainly true that there are still immense plots of land entirely unknown from a botanical (or any other) point of view, and that we know but a part (but most probably more than one half) of the Papuan species of Pteridophytes and Spermatophytes, I am inclined to think that it is more than anything else the scattered nature of those data, that prevented us from realizing their intrinsic value. The time has come, I think, to pauze and to realize what has been done in the past years;... |
| Tipo: Article / Letter to the editor |
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| Ano: 1934 |
URL: http://www.repository.naturalis.nl/record/524533 |
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| Husson, A.M.; Lam, H.J.. |
| Thusfar the genus Dacryodes, as far as the Australasian area is concerned, was only known to occur in Western Malaysia (including the Philippines), with a centre in the Malay Peninsula, Sumatra and Borneo. Only one, out of 13, species is extending towards Cochin China in the West and the Philippines and N. Celebes in the East and another is known from the Malay Peninsula, British N. Borneo and the Philippines (cf. the senior writer’s paper in Bull. Jard. Bot. Buitenzorg, sér. III, Vol. XII, 1932, 334—366). Thus, Dacryodes was so far considered one of the many exclusively or preponderantly west-malaysian genera which do not or hardly cross Wallace’s line. |
| Tipo: Article / Letter to the editor |
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| Ano: 1952 |
URL: http://www.repository.naturalis.nl/record/524482 |
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| Lam, H.J.. |
| Description of type specimen: Haplolobus celebicus, nov. spec. — Arbor altiuscula; ramuli subgraciles, circiter 0.4—0.7 diam., lenticellati, vetustiores (in sicc.) lenticellis plus minusve rugosi, alabastro terminali minuto pulverulento, ceterea glabri; medulla compacta aresinosa. Folia glabra estipulata, (1½—) 2½— 3½(—4½)-jugata; petioli teretes lenticellati, ima basi supra vix deplanati, basi nodisque rhachidis vix articulati, 6.5—9.5 cm longi, rhachidis partes interjugales 2.8—5.5 cm longae, medulla nonnullis fasciculis resiniferis magnis percursa; foliola chartacea, in sicc. viridiuscula, ovata vel ovato-oblonga ad oblongo-lanceolata, basi plus minusve inaequalia rotundata ad acuta, marginibus integra, apice breviter obtuse subabrupte acuminata,... |
| Tipo: Article / Letter to the editor |
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| Ano: 1938 |
URL: http://www.repository.naturalis.nl/record/525740 |
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| Lam, H.J.; Meeuse, A.D.J.. |
| Referring to the identification of BRASS 5219 from Papua as a representative of the Verbenaceous Faradaya chrysoclada K. SCHUM. by E. BEER and H. J. LAM (Blumea 2, 1936, 225), Dr C. G. G. J. VAN STEENIS, the monographer of the Malaysian Bignoniaceae drew our attention to the possibility that this identification might be incorrect. It was suggested that the specimen and also all specimens hitherto known as Faradaya chrysoclada might be Bignoniaceous and might belong to Deplanchea tetraphylla (R. BR.) V. STEENIS, as all other Faradayas known are lianas, whereas F. chrysoclada was reported to possess the tree habit, as the Deplancheas. We therefore asked on loan the materials of both species from the Herbarea at Berlin (B) and Kew (K), that from Berlin... |
| Tipo: Article / Letter to the editor |
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| Ano: 1938 |
URL: http://www.repository.naturalis.nl/record/525308 |
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| Lam, H.J.; Meeuse, A.D.J.. |
| In 1919 Dr C. A. BACKER collected a plant in the Kangean Archipelago which had the appearance of a Cymaria so that the collector provisionally called it ”Cymaria triphylla BACKER“ (MS.). The same species was also collected by KARTA on the Island of Bawean in 1928. Some other sheets already extant in the Herbarium at Buitenzorg for a long time among the indeterminate specimens were recognized as identical with this ”Cymaria“ (TEYSMANN nr. 1750, Madoera and nr. 1768, Bawean). In 1937 Dr BACKER, when working up Javanese plants, had a closer examination of this plant and concluded that it could not be inserted in Cymaria, and even not in the Labiatae, but that it had rather to be put into the Verbenaceae. However, he found himself unable to identify the... |
| Tipo: Article / Letter to the editor |
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| Ano: 1939 |
URL: http://www.repository.naturalis.nl/record/526106 |
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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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| 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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| 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.. |
| On March 7, 1953 the Rijksherbarium suffered a severe loss by the sudden death of its honorary co-operator Dr. D. F. van Slooten, the wellknown specialist particularly of Dipterocarpaceae. To honour his memory the following lines may serve as an obituary note. Dirk Fok van Slooten was born in Amersfoort on 17 March 1891. In the local gymnasium his biology teacher was the later Prof. A. Pulle, who was again his master at the University of Utrecht where he was matriculated in 1910. His doctor’s thesis of 1919 was dealing with the Combretaceae and Flacourtiaceae of the Dutch East Indies. |
| Tipo: Article / Letter to the editor |
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| Ano: 1953 |
URL: http://www.repository.naturalis.nl/record/525680 |
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| Beer, Eva; Lam, H.J.. |
| Archboldia, nov. gen. — Frutices; folia opposita; inflorescentiae terminales, paniculato-corymbosae, e cymis compositae; calyx plus minusve patens, infundibuliformis, 5-lobatus; corolla exserta, ventricoso-cylindrica, utrinque glabra, aetinomorpha, breviter 5-lobata; stamina 4 alternipetalia, introrsa, dorsifixa haud exserta, monodynamia, corollae paulo sub fauce inserta, breviter filamentosa; ovarium 4-sulcatum, bicarpellatum, imperfecte 4-loculatum, ovula 4 anatropa placentis basi-parietalibus inflexis affixa; stylus haud exsertus, stigmate subulato; cetera desunt. Though the material is very scanty and not very well preserved, we may suppose with some probability that this is the representative of a new genus. It cannot be combined with any Verbenaceous... |
| Tipo: Article / Letter to the editor |
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| Ano: 1936 |
URL: http://www.repository.naturalis.nl/record/524636 |
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| Lam, H.J.. |
| On studying newly received material of Haplolobus, mostly from New Guinea, the key in Husson & Lam 1953 ¹) proved to be far from satisfactory in several respects. This is why all material now available has been given a critical consideration or reconsideration, as the case may be, and from this originated a new revision with a new key, which is presented here. Since the flowers of the various Haplolobus species are of the same type and very uniform, and since they are wanting in so many specimens either in one of the sexes or in both, it appeared, for the time being at least, unfeasible to use them for differential characteristics in the key. The same holds true for the fruits. Only when abundant flowering and fruiting material will be available is... |
| Tipo: Article / Letter to the editor |
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| Ano: 1958 |
URL: http://www.repository.naturalis.nl/record/525083 |
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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.. |
| 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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| 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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| Lam, H.J.. |
| In recent years Baehni has provided us with some elaborate studies on the Sapotaceae (1, 2) and we understand that it is his intention to continue the series of generic monographs. As I pointed out in a criticism (8) concerning the first of his papers, this seemed not a very successful beginning, be it only because one usually does not start a series of generic monographs by giving a survey of the whole family with the nature of a conclusion, without risking the judgment of prematurity. As might have been expected this paper contains a number of incorrectnesses, which may largely be ascribed to an insufficient knowledge of this intricate and difficult family. |
| Tipo: Article / Letter to the editor |
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| Ano: 1943 |
URL: http://www.repository.naturalis.nl/record/524487 |
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| Leenhouts, P.W.; Kalkman, C.; Lam, H.J.. |
| Dioecious, rarely monoecious trees or shrubs. Bark of twigs with a whorl of resiniferous ducts, bordered on the outer side by a distinct, closed or more or less interrupted sinuous sclerenchymatic cylinder. Pith of the twigs, petioles and petiolules not rarely with vascular strands, those in the twigs mostly amphivasal with mainly sclerenchymatic xylem, those in the petioles and petiolules collateral and consisting of abundant phloem, the strands predominantly reduced to mere vestigial resiniferous ducts. Leaves imparipinnate, sometimes 1-foliolate; spirally arranged, very rarely in pseudowhorls, usually more or less crowded at the ends of the branchlets. Stipules absent, Garuga and Canarium excepted (see Morph.); in addition in Garuga stipellas are often... |
| Tipo: Article / Letter to the editor |
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| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/532548 |
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| Registros recuperados: 56 | |
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