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Registros recuperados: 268
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Sonneratiaceae (concluded). Sonneratiaceae and other mangrove-swamp families, anatomical structure and water relations Naturalis
Reinders-Gouwentak, C.A..
The question whether tidal and non-tidal members of a family have a separate wood anatomical structure would be examined best in such genera as embrace both types. The sequel to this examination, whether any such differences are connected with peculiarities in the water relations of the plants, should be examined in the same way. There are, however, few genera that comprise both littoral and inland species. In some of these genera, Excoecaria, Ixora and Dolichandrone, wood anatomical data can be compared but water relations among the species have not been examined nor are comparative data from the nearest relatives available. According to MOLL & JANSSONIUS the mangrove-swamp species possess more vessels per mm² with a larger total area on cross section...
Tipo: Article / Letter to the editor
Ano: 1948 URL: http://www.repository.naturalis.nl/record/532589
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State of progress in Malaysian plant Taxonomy Naturalis
NN.
Dr H.C.D. de Wit started a revision of Malaysian Bauhinia, this being part of his work on the Caesalpiniaceae of Malaysia; he is working in the Eijksherbarium, Leyden, Holland. Mr R.A. Blakelock, is revising the genus Evonymus at the Roy. Bot. Gardens, Kew-Surrey.
Tipo: Article / Letter to the editor
Ano: 1948 URL: http://www.repository.naturalis.nl/record/533249
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Sphenocleaceae Naturalis
Airy Shaw, H.K..
Annual (?)laticiferous herbs, with the habit of Phytolacca. Stem erect, somewhat succulent. Leaves spirally arranged, simple, entire, exstipulate. Inflorescences terminal, densely spicate, acropetal. Flowers subtended by a bract and two bracteoles, bisexual, actinomorphic. Calyx tube adnate to the ovary; segments 5, united below, imbricate, connivent, persistent. Corolla campanulate-urceolate, perigynous; lobes 5, imbricate. Stamens 5, epipetalous, alternating with the corolla lobes; filaments short; anthers rounded, 2-locular, dehiscing longitudinally. Ovary semi-inferior, 2-locular; style short, stigma capitate; ovules attached to large spongy stipitate axile placentas. Capsule cuneate-obconic, 2-locular, membranous, circumscissile; seeds ~, minute,...
Tipo: Article / Letter to the editor
Ano: 1948 URL: http://www.repository.naturalis.nl/record/532652
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Hirudinea of the genus Helobdella from Curaçao and Venezuela Naturalis
Dresscher, Th.G.N.; Engel, H..
Two species of leeches only have been collected by dr HUMMELINCK in 1936—1937, but these are important as they evidently prove the occurrence in warm tropical waters of species hitherto only recorded from non-tropical areas. Helobdella scutifera is distinguished from H. stagnalis by AUTRUM, 1936, p. 26 and 34, though PAWLOWSKY (cf. AUTRUM 1939, Bronns Kl. u. Ordn., Hirudineae 2, p. 500) considered them synonymous. AUTRUM (l. c. p. 500 and footnote) remarks that H. stagnalis is not known from tropical localities, supposing the habitats in Ecuador, Brasil and Paraguay perhaps to be non-tropical because of their particular position. Our material, however, shows affinities to both species and tends to affirm the identity of H. stagnalis and H. scutifera. It is...
Tipo: Article / Letter to the editor
Ano: 1948 URL: http://www.repository.naturalis.nl/record/506160
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Preface Naturalis
NN.
There are only a few things left in common to the displaced and disjointed inhabitants of this Earth; they are the things spiritual. Among those treasures of the mind natural science has come to the fore only in the last three centuries, as a lofty and impartial principle that tends to join people instead of disrupting them. Through war, famine and pestilence the undying fire of science has remained a steady beacon.
Tipo: Article / Letter to the editor
Ano: 1948 URL: http://www.repository.naturalis.nl/record/532706
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Sarcospermaceae Naturalis
Lam, H.J..
Trees or shrubs, at least two spp. laticiferous. Leaves simple, entire, subopposite or opposite, rarely subverticillate; often with some alternate ones between, penninerved; petiole sometimes with auricles at the top; blade often with glandular pits in the axils of the secondary nerves or scattered on the undersurface; tertiary nerves slender but conspicuous, transverse and usually crowded, more or less perpendicular to the midrib. Stipules small, caducous. Flowers bisexual, in small fascicles or solitary, placed along racemose or more or less broadly paniculate axillary shoots; bracts minute deltoid. Sepals 5, quincuncially imbricate, two inner ones with scarious margins. Corolla infundibuliform, tube short, slightly thickened; lobes spreading, imbricate...
Tipo: Article / Letter to the editor
Ano: 1948 URL: http://www.repository.naturalis.nl/record/532594
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Myoporaceae Naturalis
Bloembergen, S..
Shrubs, trees, or prostrate plants. Leaves spread, rarely opposite, entire or toothed, exstipulate. Flowers ♀, zygomorphic, rarely almost actinomorphic, small, axillary, solitary or usually in clusters of 2,3 or more. Calyx and corolla 5-lobed. Stamens 4, rarely 5, in pairs of unequal length, inserted on the corolla-tube and alternate with the lobes. Anther-cells opening lengthwise, confluent at the apex, usually forming a single reniform cell after dehiscence. Ovary superior, not lobed, 2—10-celled with 1 ovule in each cell, rarely 2-celled with 2 ovules per cell. Style simple entire or obscurely notched at the apex. Drupe 2—10-celled. Distr. Ca 35 spp., largely in Australia, 1 species in E. Asia, further in the Pacific, Rodriguez Isl. and Mauritius.
Tipo: Article / Letter to the editor
Ano: 1948 URL: http://www.repository.naturalis.nl/record/532698
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Annotated phyto-taxonomical & phyto-geographical publications on or of importance to the Malaysian flora Naturalis
NN.
Index Kewensis. Suppl. 10. (1936-1940). Clarendon Press, Oxford, £4/4. (1947). Check List of British vascular plants (Journ. Ecol. 33 (1946) 308-347). Nomenclature accepted by the Brit. Ecol. Soc. to uniformize the binary names used for British plants.
Tipo: Article / Letter to the editor
Ano: 1948 URL: http://www.repository.naturalis.nl/record/533314
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Ancistrocladaceae Naturalis
Steenis, C.G.G.J. van.
Scandent shrubs (often erect in youth), without resin; branches sympodial with a series of circinate woody hooks in one plane. Leaves spread, simple, entire, often rosette-crowded, cuneiform, penninervous, reticulate-veined, glabrous, both surfaces minutely pitted, each pit with a peltate small hair secreting a waxlike substance; petiole articulated, scar on the twigs often saddle-shaped; stipules absent. Flowers ♀♂, actinomorphic small. Inflor. few or several times dichotomous or spike-like, often provided with said hooks and single reduced bract-like leaves, branches often recurved. Pedicels articulated. Bracts with a glandular-thickened base, margin fimbriate-membranous. Calyx tube short, at length adnate to the base of the ovary; lobes 5 inequal...
Tipo: Article / Letter to the editor
Ano: 1948 URL: http://www.repository.naturalis.nl/record/532536
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Amphipods from Curaçao, Bonaire, Aruba and Margarita Naturalis
Stephensen, K..
The material on which the present paper is based was collected in fresh- and brackish-water habitats on the islands of the Leeward Group, West Indies, in 1936 and 1937. For completeness sake specimens from brackish water and from some isolated salt-water habitats — already studied by the author (K. STEPHENSEN, 1933a and 1933b) — were included. It seems highly probable that the greater part of the species treated below are also represented in the litoral fauna of the open sea. The occurrence of the species on the various islands may be summarized as follows (see also Table 1.)
Tipo: Article / Letter to the editor
Ano: 1948 URL: http://www.repository.naturalis.nl/record/506030
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Proposals for conservation of some generic names of Malaysian plants Naturalis
NN.
In 1826 REINWARDT published in ”Sylloge Plantarum” &c, vol. 2, pp. 1-15 under the title ”Nova plantarum indicarum genera” an article containing descriptions of some Malaysian genera of phanerogams. Amongst them is described on pag 1: Angiopetalum punctatum Reinw. n.g.n.sp. from Java. Though assigned to the Myrsinaceae by DALIA TORRE & HARMS this genus has hitherto remained obscure, and has not even been mentioned by MIQUEL. However, there is a name Allopetalum punctatum REINW. mentioned by SCHEFFER (De Myrsin. 1967, 93) as a MS. name in the synonymy of Ardisia pumila BL., also mentioned by MEZ (Pfl. Reich 9 (1902) 171) for that plant, which is now commonly known as Labisia pumila (BL.) B. & H. The type specimens of Allopetalum punctatum REINW....
Tipo: Article / Letter to the editor
Ano: 1948 URL: http://www.repository.naturalis.nl/record/532987
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Gnetaceae Naturalis
Markgraf, F..
Glabrous trees, shrubs or, for the greater part, vines. Leaves decussate, simple, entire, penninerved, exstipulate, mostly provided with fine, pellucid lines (spicular cells) parallel to the secondary nerves and then bearded on fracture. Spikes ramified or simple, axillary or often cauline, dioecious, each one with 2 opposite basal scales and several collars containing moniliform hairs and sessile flowers, either numerous spirally arranged male ones below a ring of some sterile female ones, or a ring of few fertile female ones. ♂ Flower: a claw-shaped, transversely splitting perianth and a central stamen with 2 (in G. gnemonoides one) apical, yellow microsporangia that open by an apical median split. ♀ Flower: a fleshy outer envelop (‘perianth’) and 2 thin...
Tipo: Article / Letter to the editor
Ano: 1948 URL: http://www.repository.naturalis.nl/record/532634
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Thymelaeaceae—Gonystyloideae Naturalis
Airy Shaw, H.K..
Trees, rarely shrubs. Leaves simple, mostly glandular-punctate, exstipulate. Flowers ♀, actinomorphic, 5-merous. Calyx-tube short, tube (and usually segments) densely setulose-hairy within. Corolla represented by 7-40 deltoid to linear-subulate processes, rarely by a low entire annulus. Stamens 8-80; filaments free, short, slender; anthers hippocrepiform. Disk 0. Ovary (2-)3-5(-8)-locular; cells with one anatropous ovule pendulous from the apex. Style elongate, filiform, sometimes accompanied by ‘parastyles’ at the base; stigma small, capitate. Fruit a thick-walled, woody, dehiscent, 1—5-seeded capsule, or a thin-walled, (?) indehiscent, 1—2-seeded capsule. Seeds large, without chalazal fold, usually with aril. Endosperm 0. Distr. Almost confined to...
Tipo: Article / Letter to the editor
Ano: 1948 URL: http://www.repository.naturalis.nl/record/532509
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Trigoniaceae Naturalis
Steenis, C.G.G.J. van.
Tree, wood vessels mostly solitary. Leaves simple, spread (on lateral branches), penninervous, entire, margin and leaf tip glandular; upper epidermis often double and provided with mucilaginous cells; midrib sulcate above. Stipules caducous. Indumentum of simple hairs. Flowers actinomorphic, bisexual, in axillary and terminal panicles; bracts with glandular margin. Sepals 5, free, nerved as the petals are, unequal, imbricate. Petals 5, free, very unequal, imbricate; posterior saccate with reflexed emarginate limb, lateral spathulate, spreading, anterior oblique, keel-like together, including at their base the genitals; entrance of the sac with one fleshy hairy concave gland (easily breaking into 2 parts). Stamens 6 monadelphous, tube split posteriorly,...
Tipo: Article / Letter to the editor
Ano: 1948 URL: http://www.repository.naturalis.nl/record/532521
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Bixaceae Naturalis
Backer, C.A..
Small trees or erect shrubs. Leaves spirally arranged, simple, petioled, entire, palmatinerved, densely red-dotted. Stipules small, very caducous. Flowers in terminal corymbs or panicles, actinomorphic, ♀, rather large. Pedicel with 5-6 apical glands. Sepals 4-5, free, imbricate in bud, falling off as soon as the flower expands. Petals 4-7, free, imbricate in bud. Stamens numerous, inserted on an annular hypogynous disk; filaments thin, free; anthers horseshoe-shaped, passing over the top of the filament and with both ends closely applied to i , 2-celled; cells opening in the middle (on the top of the filament) by short slits which unite into a spuriously apical pore. Ovary superior, usually bristly, 1-celled, with 2 opposite parietal slightly intruding...
Tipo: Article / Letter to the editor
Ano: 1948 URL: http://www.repository.naturalis.nl/record/532663
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Morphologie et systematique des Soliedes affectes d'une atrophie plus ou moins complète de l'oeil migrateur Naturalis
Chabanaud, P..
Au cours de l'année 1935, le Directeur du Musée de Prague a eu l'amabilité de m'envoyer en communication les 3 syntypes de Synaptura lipophthalma Janos ; de son côté, M. Hardenberg, Directeur du Laboratoire océanographique de Batavia (Laboratorium voor het Onderzoek der Zee), m'a fait le don généreux de 3 paratypes de son Typhlachirus caecus. C'est avec joie que je saisis l'occasion qui m'est offerte ici de remercier ces deux savants de leur extrème courtoisie, grâce à laquelle j'ai pu examiner à loisir et comparer directement entre eux tous ces spécimens. Sommaire. I. — Revision du genre Typhla- Les épiotiques......34 chirus.........3 Le parasphénoïde.....35 Remarques .......21 Les prootiques......36 II. — Espèce dont il reste à préciser Les...
Tipo: Article / Letter to the editor Palavras-chave: 42.81.
Ano: 1948 URL: http://www.repository.naturalis.nl/record/317630
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Corynocarpaceae Naturalis
Steenis, C.G.G.J. van.
Evergreen, glabrous trees or shrubs, without resin-tubes. Leaves spread, simple, entire, more or less crowded towards the ends of the shoots, shining, exstipulate; midrib sulcate; shoots with perular terminal buds. Branches often in pseudowhorls. Inflorescences terminal, sometimes lateral, generally not exceeding the leaves. Flowers on the ultimate axis in fascicles of 3, towards the end solitary, pedicellate, bracteate. Calyx deeply 5-lobed, fleshy, persistent, petaloid, lobes inequal, concave, imbricate, 2 outermost smallest. Petals 5, thinner than the sepals, inserted at the margin of the disk-like receptacle. Stamens 5, attached to the base of the petals; filaments flattened or terete, slightly thickened towards the base; anthers dorsifixed, dehiscing...
Tipo: Article / Letter to the editor
Ano: 1948 URL: http://www.repository.naturalis.nl/record/532547
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Dioscoreaceae Naturalis
Burkill, I.H..
Rhizomes (rarely spiny) producing annual, mostly twining shoots, in Malaysia twining either to the right (fig. 4c) or the left (fig. 4a). Stems consisting of a main stem and sterile branches, both bearing leafless flowering axes. Leaves petiolate, generally cordate, simple and entire or palmately lobed, or palmately compound, except in the latter triplinerved; apex generally glandular, developed before the blade (forerunner tip); blade usually glandular on the lower side chiefly towards the base. Flowers hermaphrodite or dioecious, ♀ with staminodes, ♂ without even a rudimentary ovary, actinomorphic, 3-merous, mostly inconspicuous and greenish, ♂ often massed together and scented. Tepals in two whorls of 3. Stamens in 2 whorls of 3, the inner sometimes...
Tipo: Article / Letter to the editor
Ano: 1948 URL: http://www.repository.naturalis.nl/record/532592
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Introduction Naturalis
Steenis, C.G.G.J. van.
After the appearance of RUMPHIUS’S Herbarium Amboinense, the result of lifelong research into the botanical treasures of the Malaysian Archipelago, the first comprehensive work on the flora of these islands was begun by C. L. BLUME, the second Director of the Botanic Gardens at Buitenzorg. His Bijdragen lot de Flora van Nederlandsch Indie (Contributions to the Flora of the Netherlands Indies) consisted of numerous brief botanical diagnoses mostly, however, of Javan species. Shortly after followed his Flora Javae and later Rumphia. None of these books represent a ‘flora’; neither completeness was aimed at nor keys were given. The first design for a flora of the whole of Malaysia seems to have been drafted by the Swiss botanists H. ZOLLINGER and his teacher,...
Tipo: Article / Letter to the editor
Ano: 1948 URL: http://www.repository.naturalis.nl/record/532709
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Amaranthaceae Naturalis
Backer, C.A..
Herbs, rarely climbing or clambering shrubs. Leaves opposite or alternate, exstipulate, simple, entire or obsoletely dentate-serrate. Flowers ♀, unisexual, or partly difformed and neutral, in clusters, heads, racemes, spikes or panicles, solitary or clustered in the axil of persistent bracts, usually bibracteolate. Tepals 3-5, mostly free; bracts, bracteoles and tepals with scarious margins or entirely scarious; bracteoles falling off with the perianth or persistent; perianth usually enclosing the fruit and falling off with it, rarely persistent. Stamens as many as petals and opposed to them, rarely fewer; filaments free, or connate below, or almost entirely united in a cup or tube, with or without interposed dentiform, subulate, linear or short and broad...
Tipo: Article / Letter to the editor
Ano: 1948 URL: http://www.repository.naturalis.nl/record/532537
Registros recuperados: 268
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