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| Registros recuperados: 28 | |
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| Royen, P. van. |
| The present study includes the whole genus Madhuca and is not restricted to those of the Malaysian area only. The results of this study could not have been obtained without the kind help of the Directors of the herbaria of Berkeley (U.S.A.), Berlin, Bogor, Florence, Jamaica Plain (U.S.A.), Kepong, Kew, Lae, Leiden, London, Manokwari, Paris, Singapore, Utrecht and Washington to whom I express my most sincere thanks. The abbreviations of the names of herbaria are those proposed in the Index Herbariorum by Lanjouw and Stafleu. The herbarium of the Forest Department in Manokwari, is still indicated by Holl, the original abbreviation. |
| Tipo: Article / Letter to the editor |
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| Ano: 1960 |
URL: http://www.repository.naturalis.nl/record/525030 |
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| Herrmann-Erlee, M.P.M.; Royen, P. van. |
| In the present study only those species of the genus Pouteria have been incorporated which are found in the area covered by the Flora Malesiana, as well as those of Australia and western Polynesia. The results of this study could not have been obtained without the kind help of the Directors of the herbaria of Berkeley, Brisbane, Bogor, Florence, Jamaica Plain, Kew, Lae, Leiden, London, Manila, Melbourne, Paris, Singapore, Stockholm, Sydney and Zürich to whom we express our most sincere thanks. |
| Tipo: Article / Letter to the editor |
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| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/524635 |
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| Royen, P. van. |
| Arrhenechthites haplogyna (F. Mueller) Mattfeld was originally described as Senecio haplogynus F. Mueller (Trans. Roy. Soc. Victoria 1, 1899: 14), based on rather poor material collected by Sir William MacGregor from Mount Knutsford. Von Mueller remarks that the species could be placed both in Senecio or Erechthites, basing himself on the statement by Bentham and Hooker in the Genera Plantarum 2 (1873) 208, ‘that occasionally some solely pistillate flowers occur in species of Senecio, hence the only characteristic which separates Erechthites from Senecio, is unreliable, and therefore the present plant may be placed in either genus’. Mattfeld (Bot. Jahrb. 69, 1938: 292) creates a new genus, Arrhenechthites, and moves Senecio haplogynus into this genus,... |
| Tipo: Article / Letter to the editor |
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| Ano: 1977 |
URL: http://www.repository.naturalis.nl/record/526220 |
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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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| Royen, P. van. |
| Xantolis Raf., Sylv. Tell., 1838, 36 — Planchonella Pierre, p.p., Not. bot. Sapot., 1890, 34; Dubard, Ann. Mus. col. Mars. 20, 1912, 41; Lam, Ann. Jard. bot. Bzg, sér. 3, 7, 1925, 193; Lam, l.c., sér. 3, 8, 1927, 467 — Sideroxylon L., p.p., Engler, Nat. Pfl. Fam. 4, 1, 1897, 143 and Nachtrag, 1897, 27 — Hormogyne DC, p.p., Prodr. 8, 1844, 176 — Pouteria Aublet sensu Baehni, p.p., Candollea 9, 1942. Trees or shrubs, often spiny. Leaves alternate, estipulate, sometimes with the flowers conferted at the tips of brachyblasts, entire, with a marginal nerve, tertiary nervation transverse or reticulate, sparse, slender. Flowers ♂♀, 5-merous, solitary or clustered, axillary or sometimes along an axillary shoot, bracts small. Calyx with a short tube and mostly... |
| Tipo: Article / Letter to the editor |
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| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/524958 |
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| Royen, P. van. |
| Eberhardtia Lecomte, Bull. Mus. Hist. Nat. Paris 26, 1920, 345; Fl. Gén. Indo-Chine 3, 7, 1930, 882. Trees. Leaves scattered along the branchlets, simple, entire, petiolate, secondary nerves diminishing until inconspicuous near margin, tertiary nerves transverse. Stipules large, caducous. Flowers in axillary clusters. Sepals 5, imbricate. Corolla gamopetalous, 5-lobed, each lobe consisting of two broad lateral and one linear, median lobe. Stamens 5, oppositi- and epipetalous, filaments thickened except for the apical part. Staminodes 5, alternipetalous, inserted between the corolla-lobes, filaments thickened, antheroid membranous, sagittate. Ovary 5-celled. Style 1. Fruit a berry, 5-seeded, scar of seed linear, albumen copious, cotyledons thin. |
| Tipo: Article / Letter to the editor |
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| Ano: 1960 |
URL: http://www.repository.naturalis.nl/record/526086 |
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| Royen, P. van. |
| Diploknema Pierre, Arch, néerl. sc. exact. et nat. 19, 1884, 103; Burck, Med. Lands Pl. Bzg 3, 1886, 43; Boerlage, Handl. Fl. Ned.-Ind. 2, 1, 1891, 301; Baillon, Hist. Pl. 11, 1891, 302; Engler & Prantl, Nat. Pfl. Fam. 4, 1, 1897, 134; Heyne, Nutt. Pl. Ned.-Ind. 3, 1917, 292; Lam, Bull. Jard. Bot. Bzg, sér. 3, 7, 1925, 183; Lam, Bull. Jard. bot. Bzg, sér. 3, 8, 1927, 463; Heyne, Nutt. Pl. Ned.-Ind., ed. 2, 1927, 1231, and ed. 3, 1950, 1231 — Mixandra Pierre, Not. Bot. Sapot., 1890, 2; Dubard, Rev. Gén. Bot. 20, 1908, 316. Trees. Leaves alternate, usually crowded at apex of branchlets, stipules extant, petioles often thickened in basal part. Inflorescences fascicled in axils of leaf-scars on older branches, those of the present year in most cases... |
| Tipo: Article / Letter to the editor |
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| Ano: 1958 |
URL: http://www.repository.naturalis.nl/record/525783 |
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| Royen, P. van. |
| The alpine vegetation of the West Dome (Mt Biota) of the Albert Edward Range is a combination of secondary and primary aspects which alternate mosaiclike and often form distinct seral vegetations. Towards the original shrubberies seral communities are growing with treeferns increasing in number towards the shrubberies’ edges. A true alpine vegetation is found only towards the summit and consists of a wide open vegetation with few scattered plants. |
| Tipo: Article / Letter to the editor |
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| Ano: 1967 |
URL: http://www.repository.naturalis.nl/record/535237 |
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| Royen, P. van. |
| During the study of the Xyridaceae of the Malaysian area it was desirable to study those of Australia and Continental Asia as well. The Malaysian species now have, in the meantime, been published (Flora Malesiana, ser. 1, 4, 1953, 366—376). To the new taxa described in Blumea 7, 1953, 307—308 the Latin diagnoses of the following new species and a new section may here be added: 1. Xyris linifolia van Royen, nov. spec. — Fig. 1. Herba mediocris, ad 40 cm alta. Folia subulata, ad 25 cm longa, c. 1 cm diam., subfalcata, acuta, sparse papillata; vaginae 6—8 cm longae, basi 3—6 mm latae; ligula brevis acuta c. 1 mm longa. Scapus 20—40 cm, c. 1 mm diam., teretiusculus, 2- vel pluricostatus, minute papillatus. Capitula ovoidea ad globosa, pauciflora, ad 7 X 6 mm,... |
| Tipo: Article / Letter to the editor |
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| Ano: 1954 |
URL: http://www.repository.naturalis.nl/record/525425 |
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| Royen, P. van. |
| Trees; leaves with caducous stipules; tertiary nervation descendant, but usually lax and irregular; inflorescences clustered, axillary, manyflorous; calyx with two rows of four lobes each; corolla 8-merous, each lobe with 2 dorsal segments as long as itself; stamens epipetalous, 8, in the same row as the 8 alternipetalous staminodes; ovary usually 8-celled; cells 1-ovuled, ovules anatropous, attached at the base; fruit a berry, 1—2-seeded; seeds with a small, circular, basal scar, in which the hilum and the micropyle are placed close to one another; albumen abundant; cotyledons thin, foliaceous; radicle long, cylindrical, exsert — About 80 species in all tropical countries, except in America. In 1925, Lam (Bull. Jard. Bot. Bzg, sér. 3, 7, 1925, 235—237)... |
| Tipo: Article / Letter to the editor |
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| Ano: 1952 |
URL: http://www.repository.naturalis.nl/record/525422 |
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| Royen, P. van. |
| Herba nana, basi lichenoidea; individua foliata parvula folia 3 vel 4 naviculiformia, apice obtusa gerentia. Flores terminales, a spathella membranacea inclusa, pedicellis brevibus. Tepala dua, staminis basi in utraque latere posita, oblanceolata, apice acuta. Stamen unum, filamentis linearibus; antherae dorsifixae, ovoideae, apice obtusae, basi incisae, 2-loculares, rimis dua longitudinalibus lateraliter dehiscens; grana pollinis 2-locularia. Ovarium ellipsoideum, compressum, apice acutum, basi decurrens, 12-costatum, costus suturalibus longitudinaliter dimidiatis, 2-locularem septis caducis, placenta centrali, ovulis paucis; styli 2, ovato-lanceolati, basi coherentes, papillati. Capsula ovario exacte similis vel eo paullum maior, septicide, seminibus... |
| Tipo: Article / Letter to the editor |
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| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/525234 |
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| Royen, P. van. |
| Mastichodendron Cronquist, Lloydia 9, 1946, 245 — Mastichodendron (Engler) H. J. Lam, Med. Bot. Mus. Herb. Rijksuniv. Utrecht 65, 1939, 521; idem, Rec. Trav. bot, Néerl. 36, 1940, 521 — Mastichodendron Jacquin in Hedwig, Genera, 1906, 116, as a synonym in Bumelia — Sideroxylon L., section Mastichodendron Engler, Nat. Pfl. Fam., ed. 1, IV, 1, 1897, 144. Trees, rarely shrubs. Leaves scattered, tertiary nerves transverse but the nerves subparallel to the secondary nerves. Stipules none. Flowers in few-flowered, axillary clusters. Sepals 5, imbricate. Corolla 5-lobed, lobes imbricate in bud. Staminodes 5, alternipetalous, inserted in the throat of the tube. Stamens 5, oppositi- and epipetalous, anthers dehiscing laterally. Ovary 5-celled, with one ovule in... |
| Tipo: Article / Letter to the editor |
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| Ano: 1960 |
URL: http://www.repository.naturalis.nl/record/524793 |
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| Royen, P. van. |
| Mostly perennial, paludose, grass-like herbs with fibrous roots; stembase very rarely thickened, often profusely producing shoots. Leaves basal, distichous on each shoot, ensiform, linear or filiform, sometimes twisted; sheaths with a membranous margin (in Mal. spp.) producing mucilage (?always), with or without a short ligule; limb glabrous or with numerous, small hard papillae, sometimes with a stout nerve in either margin. Flowers ♀♂, in terminal, few- to many-flowered heads, 3-merous, yellow to white, ephemeral, each in the axil of a conspicuous bract; bracts conchate, imbricate, spirally arranged, lower ones sterile; one to few flowers simultaneously in anthesis. Peduncles scape-like, terete to compressed, sometimes winged or ribbed, glabrous or with... |
| Tipo: Article / Letter to the editor |
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| Ano: 1948 |
URL: http://www.repository.naturalis.nl/record/532607 |
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| Royen, P. van. |
| Dioecious or monoecious small shrubs with thick woody roots. Leaves simple, opposite, sessile, fleshy, with a distinctly saccate, colourless base. Stipules minute. Flowers unisexual, either solitary and terminal or axillary, or in small axillary spikes. ♂ Flowers subtended by bracts, enclosed in a membranous spathella which opens with one or two transverse or radial slits giving rise to 2-4 lobes. Tepals 4, valvate. Stamens 4, alternitepalous; anthers dorsifixed, introrse, dehiscing lengthwise with 2 slits. Sometimes an abortive gynaecium present. ♀ Flowers merely consisting of a naked ovary, in the axil of leaves when solitary, in the axil of cordate bracts when growing in spikes, 2-carpellate, 4-celled by one true and one false septum; ovules 1 in each... |
| Tipo: Article / Letter to the editor |
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| Ano: 1955 |
URL: http://www.repository.naturalis.nl/record/532681 |
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| Royen, P. van; Lloyd, D.. |
| In the course of studying the Asteraceae for a proposed Alpine Flora of New Guinea the first author selected the genus Cotula for this separate paper as it showed some variability that was not easily explained. While working on this, Dr. Lloyd’s paper on the genus in the New Zealand Journal of Botany 10 (1972) 277, came to his notice and on corresponding with him it turned out that he had studied the New Guinea species already to some extent but had nothing ready for publication. At the same time, Dr. J. Koster of Leiden, Netherlands, was known to work on a study of all Asteraceae of New Guinea and it soon transpired that when the manuscript was finished and a copy sent to her that very same day she had put down the first words of her manuscript on this... |
| Tipo: Article / Letter to the editor |
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| Ano: 1975 |
URL: http://www.repository.naturalis.nl/record/525781 |
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| Royen, P. van. |
| Herba valde caespitosa. Folia linearia, interdum falcata, 0.8—4 X 0.2—0.5 cm, vel basi interdum subabrupte usque ad 1 cm dilatata, glabra, axillis pilis longis albis munita. Pedunculi 0.5—4 cm longi, 5—8-costulati. Bracteae involucrantes oblongae vel ovato-oblongae, pallide luteae, glabrae; bracteae florales conchatae, late ovatae, panduratae vel oblongo-obovatae, nigrescentes sed interdum basi pallide lutei, extus parte apicali albo-pilosae. Receptaculum longe pilosum. Flos ♂: sepala 3, interdum 2, connata, basi excepta nigrescentia, parte apicale albo-pilosa; petala 3, connata, glandulosa, extus apice et intus omnino albo- vel luteo-pilosa. Flos ♀: sepala 3, libera, naviculata, nigra, extus parte apicali albo- vel luteo-pilosa; petala 3, inaequalia,... |
| Tipo: Article / Letter to the editor |
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| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/524783 |
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| Lam, H.J.; Royen, P. van. |
| After the senior writer, together with W. W. Varossieau, had published a revision of this monogeneric family (Blumea III, 1938—’39 and IV, 1941), some more material has been examined by us and, moreover, some new species have been described. Thanks to the courtesy of Prof. F. Gagnepain of Paris, and the Director of the Musee d’Histoire Naturelle, Phanérogamic, we had the opportunity to examine the type specimens of Gagnepain's new species from Indo-China, All with all we felt that a new key and a brief enumeration of the species with the main literature, their synonyms and distribution, might be useful. SARCOSPERMATACEAE H. J. Lam, Bull. Jard. Bot. Buitenz., sér. III, 7, 1925, 248; Blumea III, 1, 1938, 184. |
| Tipo: Article / Letter to the editor |
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| Ano: 1952 |
URL: http://www.repository.naturalis.nl/record/525282 |
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| Royen, P. van. |
| Xyris malmei sp. nov. — Folia ensiformia, 7—30 cm longa, subfalcata, minute papillosa. Scapus 20—45 cm longus, teres vel subteres, papillatus. Bracteae ovatae ad ellipticae, obtusae, emarginatae vel retusae; bracteae basales cum nervo uno completo et nervis 4 descendentibus incompletis. Sepala lateralia naviculata, cum carina glabra carinata. Petala obovata, 8—9 mm longa, ungui 7—8 mm longo. Stamina 3—4.5 mm longa, antherae basi obtuse, apice profunde incisae, thecarum apex acute bifidus. Staminodia penicillata. Ovarium obovoideum. Stylus trifidus, ramulis apice capitatis. Typus: Robinson & Kloss 5962, in K: Malay Peninsula, Kedah Peak, 850— 1200 m, Dee. 1915. |
| Tipo: Article / Letter to the editor |
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| Ano: 1953 |
URL: http://www.repository.naturalis.nl/record/526292 |
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| Royen, P. van. |
| This study includes the entire genus Palaquium since in the 35 years after the publication of the work of H. J. Lam on the Sapotaceae much new material has come to our disposal to broaden the knowledge of the genus. The results of the study could not have been obtained without the assistance of the Directors of the following herbaria who put their material available on loan: Berkeley (U.S.A.), Berlin, Brisbane, Bogor, Florence, Cambridge (U. S. A.), Geneva, Kepong, Kew, Kuching, Lae, Leiden, London, Melbourne, Oxford, Paris, Sandakan, Stockholm, Sydney and Washington, to whom I express my most sincere thanks. |
| Tipo: Article / Letter to the editor |
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| Ano: 1960 |
URL: http://www.repository.naturalis.nl/record/525474 |
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| Registros recuperados: 28 | |
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