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| Registros recuperados: 1.019 | |
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| Gradstein, S.R.; Melick, H. van. |
| First record of Bryum gemmiparum de Not. from The Netherlands. The taxonomy and distribution of the species are discussed. Bryum gemmiparum was collected in a clay-pit along the river Maas in the north of the province of Limburg. This locality seems to be the northernmost one known of the species. Bryum gemmiparum was found growing on steep, rather humid, loamy soils in a luxuriant cover of bryophytes characterized by Anisothecium varium, Riccardia sinuata, Riccardia pinguis, Bryum bicolor, Didymodon tophaceus, and Mniobryum wahlenbergii. A floristical and ecological investigation of this highly interesting bryophyte vegetation in The Netherlands is needed. |
| Tipo: Article / Letter to the editor |
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| Ano: 1972 |
URL: http://www.repository.naturalis.nl/record/535128 |
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| Steenis, C.G.G.J. van. |
| In the former century Byblis was mostly included in the Droseraceae, for example by BENTHAM & HOOKER. f. (Gen. P1. 1, 1859, 220); even ENGLER had it in that position in 1912 (Syllabus ed. 7, 329). PLANCHON had in 1848 (Ann. Sc. Nat. III, 9, 1848, 80, 90) already pointed to affinity with Cheiranthera of the Pittosporaceae; HALLIER f. merged Byblis and Roridula with Tremandraceae, curiously referring this to an Ochnaceous assemblage (Abh. Gebiete Naturw. Hamburg 18, 1903, 53). About the same time LANG argued (Flora 88, 1901, 179) that on morphological and anatomical grounds Byblis cannot belong to Droseraceae, but should be referred to Lentibulariaceae. DIELS (Pfl. R. Heft 26, 1907, 51) and DOMIN (Act. Bot. Bohem. 1, 1922, 1) definitely concluded to the... |
| Tipo: Article / Letter to the editor |
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| Ano: 1972 |
URL: http://www.repository.naturalis.nl/record/532491 |
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| Catani,R. A.; Jacintho,A. O.; Pizzinatto,A.. |
| Estudou-se o comportamento das soluções tampão SMP, Woodruff original, Woodruff (1+1), (1+2) e (1+3), acetato de cálcio 1,00 N - 0,50 N e 0,25 N, frente a quantidades variáveis de ácidos clorídrico, acético, cítrico e salicílico. Foram calculados os valores da capacidade ou índice tampão de todas as soluções e as equações de regressão relativas às variações do pH das soluções em função da quantidade de ácido clorídrico adicionada. No caso da solução SMP, foram estabelecidas, também, as equações de regressão para os ácidos, acético, cítrico e salicílico. |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1972 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761972000100008 |
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| Souza,Derly Machado de; Leitão Filho,Hermógenes de Freitas; Banzatto,N. V.; Sugimori,Mauro Hideo. |
| Foram estudados três dos principais cultivares de arroz plantados em várzeas irrigadas no Estado de São Paulo, quais sejam: cv IAC-435, cv IAC-120 e cv IAC-68. Os resultados obtidos referem-se às observações realizadas nos anos agrícolas de 1969/70 e 1970/71, no Centro Experimental de Campinas e estações experimentais de Mococa e Pindamonhangaba, e permitem não apenas a exata identificação e caracterização dos cultivares, como também estabelecem normas para o estudo de novos cultivares, dando-se ênfase especial às características morfológicas diretamente ligadas à produção. |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1972 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051972000100017 |
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| Sleumer, H.. |
| Sinistrorsely twining herbs with white milky juice. Leaves spirally arranged, simple or lobed to varying degrees, cordate, palmatinerved, long-petioled, glabrous as is the stem, exstipulate. Flowers bisexual, or polygamous (andromonoecious), small, subsessile, in unilateral repeatedly forked cincinni, composed of loose axillary panicles, ebracteate. Calyx deeply (4-)5-partite, lobes imbricate in bud, whether or not slightly accrescent in fruit, persistent. Petals (4—)5, caducous, lower half forming a widely funnel-shaped corolla, lobes imbricate in bud. Stamens (4-)5 inserted on the upper part of the corolla tube, alternate with its lobes; filaments very short, glabrous; anthers medifixed, introrse; pollen grains oblate, triangular in polar view,... |
| Tipo: Article / Letter to the editor |
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| Ano: 1972 |
URL: http://www.repository.naturalis.nl/record/532615 |
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| Bakker, D.; Ploeg, D.T.E. van der. |
| The sterile hybrid Carex otrubae Podp. X Carex paniculata L., new for the Netherlands, was discovered in five localities along the IJsselmeer in the province of Friesland (fig. 1). Together with the parents it grows there abundantly on sandy and wet forelands, in an unstable vegetation rich in species of the Agropyro-Rumicion crispi and the Filipendulion. Compared with the parents, the hybrid has intermediate characters as is shown in the figures 2 and 3. |
| Tipo: Article / Letter to the editor |
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| Ano: 1972 |
URL: http://www.repository.naturalis.nl/record/527748 |
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| Thomas, Yves-f.. |
| Le Centre National pour l'Exploitation des Océans, soucieux de promouvoir une exploitation rationnelle des richesses océaniques se propose de réaliser, en collaboration avec divers laboratoires universitaires, un inventaire cartographique des données relatives au lit sédimentaire littoral, à ses formes et à son évolution. Cette cartographie tendra donc à mettre en relief : - les formations sédimentaires littorales et leur évolution par engraissement ou amaigrissement; - les formes en matériel meuble et leur transformation par agradation ou dégradation. Ce premier projet de légende comprend une discussion de chacun des thèmes suivants: - inventaire des formations - inventaire des formes - études des bilans sédimentaires. Avant toute chose, il convient... |
| Tipo: Text |
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| Ano: 1972 |
URL: http://archimer.ifremer.fr/doc/00095/20626/18253.pdf |
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| Vitiello, P.; Haspeslagh, G.. |
| Representatives of the family Ceramonematidae (Cobb, 1933) were found untill now mainly in shallow sandy bottoms. The five species mentioned hereunder, from which four are new ones were recovered from mud in the « Golfe du Lion » (Mediterrranean) at a depth of 310-580 m. A male specimen of <i>Ceramonema chitwoodi</i> De Coninck, 1942 is described. Two new species are added to the genus <i>Metadasynemella</i>: <i>M. falciphala</i> and <i>M. cassidiniensis</i>. <i>Pselionema deconincki</i> sp.n. is the first species of this genus with vacuolisations in the cuticle. <i>Pselionema minutum</i> sp.n. is a very small species. |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 1972 |
URL: http://www.vliz.be/imisdocs/publications/294778.pdf |
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| Francisco, Emilio M.; Anderson, Jock R.. |
| Twenty-one pastoralists in the West Darling region of New South Wales were interviewed to gain an understanding of the attitudes of managers in this high-risk pastoral area to uncertain prospects. It was found that pastoralists had no difficulty in specifying subjective probabilities but in modifying probabilistic information they were conservative relative to the 'correct' revision implied by Bayes' Theorem. All the surveyed pastoralists were non-indifferent to risk, as evidenced by their non-linear utility functions for gains and losses. |
| Tipo: Journal Article |
Palavras-chave: Livestock Production/Industries. |
| Ano: 1972 |
URL: http://purl.umn.edu/22798 |
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| Michel, Pierre. |
| Standard methods were used to assess the effectiveness of 101 products for use against oil slicks. Products were emulsifiers, agglomerants or precipitants and were tested against oil from Edjele, Kuwait and Syria. For each kind of product, a review is given of the previous tests, the choice of methods is discussed, the methodology is described, and results are presented and interpreted. In addition, the relationship between physical properties and effectiveness is discussed, with graphical examples and the advantages and disadvantages are indicated. It is concluded that at present no 'miracle' product exists for use in this field. Agglomerating powders would be ideal were it not for problems in putting them to use, and, wind because of the need to use them... |
| Tipo: Text |
Palavras-chave: Efficiency; Choice of products; Oil spills; Pollution. |
| Ano: 1972 |
URL: http://archimer.ifremer.fr/doc/1972/publication-2072.pdf |
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| Registros recuperados: 1.019 | |
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