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| Registros recuperados: 73 | |
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| Leenhouts, P.W.. |
| Among the treasures of the Komarov Botanical Institute at St. Petersburg is a folio known as “Thunberg Icones Plantarum Japonicarem (ineditae)”. This volume contains 305 fine drawings, washed grey apart from a few that are in watercolours. Actually, known can hardly be said; like so many bound collections of pictures only a few of the institutions’ staff members with a special interest in history know of its existence, still less have ever seen it. Good photographs of these drawings (natural size, that is 37 x 26 cm) form the kernel of this work. Added are Maxomiwicz’s notes on the drawings (the great Russian 19th century botanist Maximowicz with his special interest in the East Asian flora brought some important historical collections on Japanese botany... |
| Tipo: Article / Letter to the editor |
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| Ano: 1995 |
URL: http://www.repository.naturalis.nl/record/525936 |
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| Leenhouts, P.W.; Vente, Magda. |
| The present taxonomic revision of Harpullia was started by the second author as the main part of her work for a M. Sc. in biology at Leiden University. She concentrated on a revision of the species occurring in New Guinea, paid only a more superficial attention to the rest of the genus. The first author supervised her work, completed it, and worked it up for publication. It is hoped that this taxonomic revision will be followed by two more papers, one on the pollen-morphology by Dr. J. Muller, secondly one on the systematics of the genus by the first author of the present paper. The system that will probably emanate from the last named paper is already used in the present one and, accordingly, will be sketched here. The genus is, as with Radlkofer... |
| Tipo: Article / Letter to the editor |
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| Ano: 1982 |
URL: http://www.repository.naturalis.nl/record/525564 |
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| Leenhouts, P.W.. |
| Trees, shrubs, woody climbers, or herbs. Hairs simple, stellate, or glandularcapitate; colleters often present in the axils of the leaves, stipules, and sepals (among Mal. genera absent in Buddleja only). Leaves nearly always opposite, entire or nearly so, penninerved, rarely 3-7-plinerved (Strychnos) or curvinerved (Mitrasacme); ; stipules interpetiolar (in many genera reduced to a stipular line) in some genera moreover intrapetiolar. Flowers in cymose to thyrsiform (rarely racemose or spicate) inflorescences or solitary, 5-(rarely 4-, in Anthocleista up to 16-)merous, nearly always bisexual, actinomorphic (in some genera slightly zygomorphic). Disk sometimes present (not in Mal. spp.). Sepals united or free. Corolla gamopetalous, very rare with a corona.... |
| Tipo: Article / Letter to the editor |
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| Ano: 1960 |
URL: http://www.repository.naturalis.nl/record/532618 |
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| Leenhouts, P.W.. |
| After my rather critical review of the first eight volumes of the Flora of Australia (Blumea 33: 510. 1988) it is a great pleasure to announce here the ninth, Volume 19. This is the first of three volumes on the Myrtaceae. It comprises the genus Eucalyptus, with 513 accepted species one of the largest in the Australian flora, and the closely allied genus Angophora with but seven species (and two presumed hybrids). This is the work of a single botanist, G.M. Chippendale, and we cannot but congratulate him. As such, the revision of a genus of this size is quite an achievement. This becomes something special if, like in the present case, the quality meets a very high standard indeed. Eucalyptus is taken here in its usual wide sense. It is divided into 92... |
| Tipo: Article / Letter to the editor |
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| Ano: 1989 |
URL: http://www.repository.naturalis.nl/record/524866 |
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| Leenhouts, P.W.. |
| 1. For the first time four collections of Diploglottis, representing two species, are cited from New Guinea. 2. The genus Euphorianthus, formerly reduced to Diploglottis, is resurrected; the three species accepted by Radlkofer are united under a new combination. 3. A revision of Sarcotoechia for New Guinea is given. Up till now, Sarcotoechia was known with certainty from Australia only. The New Guinea material represents a new subgenus with five new species, one of which remains unnamed. 4. The three species of Toechima described from Malesia are combined and reduced to a new subspecies of the Australian T. erythrocarpum. 5. A revision is given of Trigonachras. This encompasses eight species; five are new, three of these remain unnamed. The genus was known... |
| Tipo: Article / Letter to the editor |
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| Ano: 1988 |
URL: http://www.repository.naturalis.nl/record/524930 |
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| Leenhouts, P.W.. |
| The Flora of Australia started in 1981 and since then 8 volumes came out, including some 70 families. Before all we have to congratulate the editors with this achievement and we express our hope that it will be possible to go on like this. Eight volumes provide the possibility for a more general evaluation. First of all, just turning over the leaves of these volumes, one is struck by the balanced design, the clear typography, the amount of illustrations. However, on further consideration one feels some disappointment. Only once in a hundred years a Flora of Australia appears to be written, and accordingly it should be as good as possible. It is a pity then if you find too often mistakes, often unnecessary ones, and inaccuracies. |
| Tipo: Article / Letter to the editor |
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| Ano: 1988 |
URL: http://www.repository.naturalis.nl/record/526214 |
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| Leenhouts, P.W.. |
| 1. The interrelations between the genera together constituting the Dimocarpus group in the tribe Nephelieae are represented in a scheme. In this scheme are added the main characters that are thought to be of phylogenetic importance. 2. A neotype.is proposed for Cubilia cubili (Blanco) Adelb., the single species of its genus. To its distribution can be added the eastern half of Borneo, incl. also the Island of P. Laut. Mention is made of a geographic clinal variation in a few macromorphological characters. 3. Lilchi is considered to comprise only one species, L. chinensis Sonn., which is subdivided into three subspecies: subsp. chinensis, the commonly grown form, cultivated for thousands of years already, apparently adapted (by nature or partly by selection... |
| Tipo: Article / Letter to the editor |
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| Ano: 1978 |
URL: http://www.repository.naturalis.nl/record/525412 |
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| Leenhouts, P.W.. |
| This beautiful flora covers one of the world’s most arid regions, 650,000 sq. km of sand, gravel, and limestone, a desert sparsely adorned by 565 species out of 322 genera of plants. Of these, 392 species and 236 genera are native; among the most extreme desertplants there are a few endemics. The most important families in number of native species are the Compositae (50, in 33 genera), the Grasses (47, resp. 31), the Chenopodiaceae (35, resp. 17), the Leguminosae (34, resp. 16), and the Cruciferae (30, resp. 22). A comparison with Bhandari’s ‘Flora of the Indian desert’, reviewed in this same issue, is interesting: though the area covered there is much smaller (some 25,000 sq. km), the numbers of genera and species as well as the most important families... |
| Tipo: Article / Letter to the editor |
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| Ano: 1991 |
URL: http://www.repository.naturalis.nl/record/524507 |
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| Leenhouts, P.W.. |
| Atalaya australiana Leenh., nom. nov. — Sapitidus (?) australis Benth. Fl. Austr. I (1863) 464. — A. australis (Benth.) Radlk. Sitz. Ber. K. Bayer. Ak. Wiss. M.-Ph. Kl. Münch. 8 (1878) 298 & 325, nom. illeg., non (A. Rich.) F. v. M., Fragm. I (1858) 46, which is A. salicifolia Bl.; Radlk. Pfl. R. Heft 98 (1932) 608. — Type: MacGillivray Voyage of Rattlesnake Bot. 489 (K), Cape York, 27-10-1849. Atalaya papuana (Radlk.) Leenh., comb. nov. — Sapindus papuana Radlk. Pfl. R. Heft 98 (1932) 661. — Type: Turner s.n. (BRI, among others sh. 23672), Papua, Central Distr., Rigo, fl. |
| Tipo: Article / Letter to the editor |
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| Ano: 1966 |
URL: http://www.repository.naturalis.nl/record/525529 |
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| Leenhouts, P.W.. |
| Monoecious or dioecious trees, (often scrambling) shrubs, or lianas. Twigs and bark rather tough; medullary rays in twigs many, distinct; pith rather small, usually dark-coloured and often disappearing early; wood rather hard. Stipules narrowly triangular to subulate, sometimes rather early caducous. Leaves spirally arranged but usually pseudo-distichous, short-petioled, pinnatinerved; margin entire, thickened by a nerve; orbicular flat glands nearly always present on the surface of the leaf, mostly beneath in the basal part; base not rarely slightly inequilateral. Growth mode: apparently mostly in flushes. Inflorescences axillary (sometimes pseudo-terminal on leafless axillary shoots), dichotomously branched or glomerulous, sometimes reduced to 2 or 1... |
| Tipo: Article / Letter to the editor |
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| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/532553 |
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| Leenhouts, P.W.. |
| Description of a new species, Diploglottis bracteata Leenh., from Queensland, Australia. Reduction of Euphorianthus (E. Malesia) to Diploglottis (NE. Australia). Discussion of the occurrence of actinomorphic and zygomorphic flowers in the Sapindaceae in nearly all tribes and even within ten genera. Discussion of the systematic position of Diploglottis bracteata: this species seems distinctly allied to and more derived than the New Caledonian genus Storthocalyx, and thus may belong to an old element of the Queensland flora allied with that of New Caledonia. On the other hand, D. bracteata is within Diploglottis closest to the East Malesian species, whereas the further Australian species are distinctly more derived. They may belong to a younger element in... |
| Tipo: Article / Letter to the editor |
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| Ano: 1978 |
URL: http://www.repository.naturalis.nl/record/525442 |
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| Kalkman, C.; Leenhouts, P.W.. |
| “The Wealth of India” is a series continuing the tradition set by Watt’s Dictionary a century ago. It is probably the most complete and most useful treatise on plant products that has ever been written for any major country. Since the first edition (1949-1979) information has increased tremendously and therefore a second revised edition is now being prepared. Letter A was already published in 1985 and the present volume covers letter B: 350 pages of text in two columns on large pages (against 111 in the corresponding part of the original volume 1). |
| Tipo: Article / Letter to the editor |
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| Ano: 1990 |
URL: http://www.repository.naturalis.nl/record/525221 |
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| Leenhouts, P.W.. |
| Descriptio typi: Arbor 11 m alta, 20 cm diam. Ramuli teretes, 4-5 mm crassi, glabrati. Folia 4-jugata; petiolus teres, ca. 7,5 cm longus, 2 mm crassus; petioluli 4-5 mm longi, supra applanati; axes foliorum pilosi, glabrati. Foliola opposita, 9,5-16 cm longa, 5-6 cm lata, ratione ca. 2-3, ovata vel elliptica, pergamentacea, costa supra tomentosa, subtus sparse pilosa; basis paulum obliqua, in foliolis basalis rotundata, in apicalis acuta; margo serrato-dentatus; apex acutus; costa supra prominens; nervi laterales inter sese ca. 1 cm distantes, oblique patentes, subcurvati, utrimque prominentes; venae venulaeque laxe reticulatae. Infructescentiae axillares, paniculatae, ad 6 cm longae, sparse patente ramosae, dense pilosae, pedunculo ca. 5 mm longo,... |
| Tipo: Article / Letter to the editor |
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| Ano: 1987 |
URL: http://www.repository.naturalis.nl/record/524436 |
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| Vink, W.; Leenhouts, P.W.; Balgooy, M.M.J. van; Hovenkamp, P.; Vermeulen, J.J.; Wilde, W.J.J.O. de; Heel, W.A. van. |
| The Hamameli(i)dae comprise, according to the new classification by Thorne, about one quarter of the genera to one third of the families of the Dicotyledonae. The symposium held at the University of Reading, U.K, 22-25 March 1988, highlighted some of the many questions concerning phylogeny and evolution in this group as a contribution to the insight in the main lines of dicotyledonous evolution. The symposium report contains a wealth of information on a wide variety of topics. The phylogenetic position of the Hamamelidae in a wider or narrower sense, or parts thereof, is subject of a number of papers. F. EHRENDORFER reviews the existing diverging interpretations and concludes that the Hamamelidae can be regarded as ancient and partly relictual survivors... |
| Tipo: Article / Letter to the editor |
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| Ano: 1990 |
URL: http://www.repository.naturalis.nl/record/525453 |
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| Leenhouts, P.W.. |
| The present book gives extensive descriptions and photographs of the leaf venation patterns of 485 (out of c. 3000-4750) species representing 79 (out of c. 215- 240) genera of the Melastomataceae and 70 (out of c. 360) species belonging to 3 (out of 4) genera of the closely allied Memecylaceae. The descriptions are followed by a key to the four main groups and 40 patterns distinguished. This key, which is illustrated by the first ten plates, is the only place where the patterns are defined; under the descriptions they are not even mentioned. The patterns are described per genus. If there is more than one type in a genus these different types are all fully described separately and marked by a capital, without any reference to the patterns given at the end.... |
| Tipo: Article / Letter to the editor |
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| Ano: 1990 |
URL: http://www.repository.naturalis.nl/record/525274 |
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| Leenhouts, P.W.. |
| The kernel of this book consists of an enumeration of some 1600 publications of importance to the flora of the Mascarenes (East of Madagascar; main islands Réunion, Mauritius, Rodrigues), arranged alphabetically by author. Fairly often a short note is given on contents and importance. Counterpart to this enumeration is an extensive Subject Index which gives many different entries to the first part. The practical value of a book like the present one depends primarily on its completeness, secondarily on its selectivity. As to the first point, this is not easy to check. Comparison with the literature on some families the reviewer is acquainted with gave the impression that the enumeration is still (rather?) incomplete. Therefore, we may hope that future, ever... |
| Tipo: Article / Letter to the editor |
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| Ano: 1993 |
URL: http://www.repository.naturalis.nl/record/525637 |
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| Leenhouts, P.W.. |
| Allophylus, at present with c. 255 accepted species, is considered as one of the largest genera of the Sapindaceae. It is distributed throughout the tropics of the Old and the New World, and shows a wide ecological range. Although somewhat variable in vegetative characters, there is a striking homogeneity in fertile characters, by which the generic disposition is easily spotted all over the world. Specific delimitation is renowned difficult in this genus (chapter 2). An analysis of the revision given by Radlkofer in his monograph of the Sapindaceae in ‘Das Pflanzenreich’, Heft 98 (1931—34) reveals that the characters, accepted by him as diagnostic, are all extremely vague, and often grading or overlapping. Of course, the species defined by these characters... |
| Tipo: Article / Letter to the editor |
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| Ano: 1967 |
URL: http://www.repository.naturalis.nl/record/525034 |
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| Leenhouts, P.W.. |
| The Index Kewensis seems too well known for more than an announcement. On the other hand, however, it is of so great practical value to the plant taxonomist that even the slightest change may be distinctly practical or not. And thanks to the use made of the computer there are some changes this time. The most important one, distinctly for the better, is the fact that whereas Supplement 17 still came out with the about normal time lapse of seven years, Supplement 18 was published only about 1½ year after the closing date. The yearly Kew Index, the first issue of which is also announced here, will even reduce this lapse to less than one year! Furthermore, from 1986 on in the Kew Index, and accordingly in the Index Kewensis, the Ferns and Fern allies will also... |
| Tipo: Article / Letter to the editor |
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| Ano: 1988 |
URL: http://www.repository.naturalis.nl/record/525980 |
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| Registros recuperados: 73 | |
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