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Registros recuperados: 9
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Cyperaceae surinamenses novae vel criticae Naturalis
Uittien, H..
Cyperus ruderalis Uitt. nov. spec. Annuus, viridis, culmis caespitosis, complanatis, raro trigonis, striatis, apicem versus modice setulosis, 6—10 cm longis, 1—1,5 mm latis, basi 0—2-foliatis. Foliis culmo multo brevioribus vel subaequilongis, 1,5—2,5 mm latis. Umbella simplex vel interdum mediocriter composita, 4—11-radiata, radiis 2,5 (0—3) cm longis, involucri foliis quattuor, uno usque ad 7 cm longo, secundo umbellam superante, tertio subaequante, quarto multo minore. Spiculis 2—3 mm, fructiferis usque ad 5 mm longis, 1,5 vel basi 2 mm latis, turgidis, densissime 10—30-fasciculatis, involucelli foliis squamiformibus ovatis vel oblongis, concavis, subcarinatis, carina setulosa, obtusis vel acutis, multinerviis, margine membranaceis, spiculis...
Tipo: Article / Letter to the editor
Ano: 1933 URL: http://www.repository.naturalis.nl/record/534861
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Histoire du problème de la feuille Naturalis
Uittien, H..
La forme est le phénomène de la vie le plus important. Aussi on pourrait croire que toute étude biologique devait commencer par la forme. En effet aucune fonction n’est imaginable indépendante de la forme, tandis qu’on peut étudier la forme indépendemment de la fonction, par exemple à des objets morts. Cependant depuis Sachs le botaniste moderne est tellement possédé par les conceptions matérialistes et mécaniques, qu’il veut aussi expliquer causalement les formes organiques en oubliant que, même si toutes les formes sont matérielles, cela ne veut pas nécessairement dire que les lois physiques et chimiques qui dominent la matière sont capables d’expliquer la forme, c.à.d. l’organisation des êtres vivants. A l’aide de briques on peut bâtir des bâtiments les...
Tipo: Article / Letter to the editor
Ano: 1939 URL: http://www.repository.naturalis.nl/record/534836
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Paramapania, genus Novum asiaticum Cyperacearum Naturalis
Uittien, H..
Genera Mapania, Hypolytrum, Thoracostachyum valde cognata sunt. Quamvis enim adhuc diversa sit botanicorum sententia de structura florum huius tribus morphologice interpretanda, de hac re omnes consentiunt, squamellas laterales binas generis Hypolytri, sive sepala sive glumas floriferas vocandas, squamellis exterioribus Mapaniae et Thoracostachyi homologas esse. F. Pax solum, qui cum nonnullis aliis auctoribus Thoracostachyum cum Mapania iungendo systema Benthamianum et Hookerianum secutus est, tertium genus, cui solo flores bisexuales ascribit, longe disiunxit. Conspectus generum usitatus ut in Hook. f., Fl. Brit. Ind. VI, p. 586, ubi C. B. Clarke Cyperaceas disposuit, ita fert: A. Spicula capitata .............................. Mapania B. Spicula...
Tipo: Article / Letter to the editor
Ano: 1935 URL: http://www.repository.naturalis.nl/record/534961
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Pavonia Julianae et Paullinia Bernhardi, Novae species Surinamenses Naturalis
Uittien, H..
E sectione Peltaea, Pavoniae speciosae H.B.K. proxima, sed forma folorium, indumento, involucri phyllis peltatis diversa. Suffrutex, caule minute stellato-piloso glabrescente, linea singula pilis simplicibus longioribus vestita in primo internodio ramulorum lateralium adaxiale notato. Folia breviter petiolata, petiolis tomentellis 2—4 mm longis, oblongo-elliptica, elliptica vel ellipticolanceolata, 3—5 cm longa, 1.25—1.5 cm lata trinervia basi acuta vel obtusa, superiora 5-nervia, basi subcordata, acutissima vel subacuminata, margine regulariter serrato-dentata, supra minute stellato-pilosa, oculo nudo glabra, infra dense sed minute stellatotomentella. Flores in axillis foliorum vel in apice ramulorum 2—3-glomeratis, bracteis ovato-triangularibus suffulti,...
Tipo: Article / Letter to the editor
Ano: 1936 URL: http://www.repository.naturalis.nl/record/535046
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Principina, genus novum cyperacearum africanum Naturalis
Uittien, H..
Culmi robusti, foliati. Folia lata, linearia, trinervia. Inflorescentia corymboso-paniculata, multispiculata. Spiculae (”spicae” multorum auctorum) parvae, multiflorae. Flores hermaphroditi (”spiculae androgynae” auctorum) perianthio utriculiformi, compresso, vix carinato, staminibus (”floribus masculinis monandris” auctorum) tribus, binis lateralibus tertio anteriore, ovario (”flore foemineo terminali nudo” auctorum) rostrato, basi angustato, haud stipitato, styli ramis ternis. Nux tri-costata, rugulosa. Generi Hypolytro L. C. Rich. proxima, a quo differt styli ramis tribus et nuce tri-costata. A Thoracostachyo et Paramapania, quibuscum stigmatum numero convenit, et structura florum et perianthio connato et nucis forma longe diversa, faciliter...
Tipo: Article / Letter to the editor
Ano: 1935 URL: http://www.repository.naturalis.nl/record/535025
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Studies in Cyperaceae-Mapanieae I-V Naturalis
Uittien, H..
The genus Thoracostachyum was described in 1869 by S. Kurz in the Journal of the Asiatic Society of Bengal, Vol. XXXVIII, part 2, p. 75 and based upon Lepironia sumatrana and L. bancana of Miquel. We are justified to accept the first-mentioned species as the type-species of the genus. It is true, that Kurz published the name Thoracostachys bancana five years earlier in the „Natuurkundig Tijdschrift voor Nederlandsch Indië” XXVII (1864), p. 224, but this name is not valid, as it was published as a nomen nudum, without a generic or specific description and even without citing the synonym Lepironia bancana Miq. In Recueil des Travaux botaniques néerlandais, Vol. XXXII (1935) p. 184 and Mededeelingen van het Botanisch Museum en Herbarium te Utrecht, nr. 16...
Tipo: Article / Letter to the editor
Ano: 1936 URL: http://www.repository.naturalis.nl/record/535054
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Studies in Cyperaceae-Mapanieae VI-VIII Naturalis
Uittien, H..
It is to be hoped, that the genus Pandanophyllum Hassk. never will revive, for it is based on a bad generic description and two nomina nuda, P. palustre Hassk. (Harassas tjaai) and P. humile Hassk., the first of which is supposed to indicate Mapania palustris (Steud.) Vill., while the other name has brought about much confusion, as it has been used for Hypolytrum humile (Steud.) Boeck. as well as for Mapania humilis (Miq., partly) Vill. The first validly published description of Pandanophyllum humile Hassk. nomen nudum in Cat. Pl. Hort. Bot. Bog. 1844, p. 297 has been given by Steudel in his Synopsis II (1855), p. 134 and is based upon a specimen collected in Java by Zollinger (n. 1511, Brit. Mus., Paris), belonging to the genus Hypolytrum. So this is the...
Tipo: Article / Letter to the editor
Ano: 1936 URL: http://www.repository.naturalis.nl/record/534977
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The Cyperaceae of the Oxford University expedition to Sarawak in 1932 Naturalis
Uittien, H..
Thanks to the kind intermediary of the Director of the Botanic Gardens at Kew, I had the opportunity to work out the Cyperaceae of the expedition mentioned above. The 25 numbers collected belong to 19 species. From the 8 species belonging to the Mapanieae, 5 are new to science. Two species of Carex are endemic for Borneo. All the other species are either cosmopolitic or at least more widely spread outside this island.
Tipo: Article / Letter to the editor
Ano: 1935 URL: http://www.repository.naturalis.nl/record/535028
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Un nouvel herbier de Fusée Aublet découvert en France Naturalis
Lanjouw, J.; Uittien, H..
JEAN BAPTISTE CHRISTOPHE FUSÉE AUBLET est né à Salon (Provence) le 4 nov. 1720 et mort à Paris le 6 mai 1778. Dès son enfance il se passionna pour l’étude des plantes. Il alla étudier la botanique à Montpellier. De Montpellier il se rendit à Lyon, où il fit la connaissance de CHRISTOPHE DE JUSSIEU et il s’engagea dans le service des hôpitaux de l’armée commandée par l’infant DON PHILIPPE. Dégoûté bientôt de la vie des camps, il prit son congé, et vint à Paris. Là il se logea dans la maison du chimiste VANEL, suivait les cours de chimie de ROUELLE, visitait les environs de Paris en naturaliste et consultait BERNARD DE JUSSIEU comme une bibliothèque, pour nous servir de son expression. Ensuite il s’engagea au service de l’état et fut chargé d’établir à...
Tipo: Article / Letter to the editor
Ano: 1940 URL: http://www.repository.naturalis.nl/record/534955
Registros recuperados: 9
Primeira ... 1 ... Última
 

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